n = unknown number
5 less than 4 times a number = 4n-5
2 more than 3 times a number = 3n+2
so you have 4n-5 = 3n +2
add 5 to both sides:
4n=3n+7
subtract 3n from both sides:
n = 7
Abebe is saving money from work and his Mom will give him an extra
1919
of whatever he saves. If Alejandro saves $23, how much will his mom give him?
$5.26
$2.56
$5.11
$6.52
Abebe's mom will give him ¼ of whatever he saves. If Abebe saves $23, his mom will give him 0.25 times $23, which is $5.75.
Explanation:The question asks how much money Abebe's mom will give him if she gives ¼ of whatever he saves, and he saves $23. To find out how much his mom will give him, we must calculate ¼ of $23.
If Abebe saves $23, and his Mom will give him an extra $19.19 of whatever he saves, you can calculate the total amount he will have as follows:
Total amount = Savings + Mom's extra contribution
= $23 + $19.19
= $42.19
Therefore, Abebe will have a total of $42.19. None of the provided options ($5.26, $2.56, $5.11, $6.52) match this amount. It seems there might be an error in the answer choices or the problem statement. Please double-check the values or context provided.
Step 1: Convert the fraction ¼ to a decimal by dividing the numerator (1) by the denominator (4), which is 0.25.
Step 2: Multiply the decimal equivalent of ¼ (0.25) by the amount saved by Abebe ($23).
Step 3: Perform the calculation: 0.25 × $23 = $5.75.
Therefore, Abebe's mom will give him $5.75.
Final answer:
Abebe's mom will give him 19% of $23, which is calculated by multiplying 0.19 by $23, resulting in $4.37.
Explanation:
The subject of the question is Mathematics, specifically it deals with a percentage problem that involves finding what fraction of an amount will be added to it. To find out how much money Abebe's mom will give him based on the extra 19% of whatever he saves, we simply need to calculate 19% of $23. The calculation is as follows:
Convert the percentage to a decimal: 19% = 0.19.
Multiply this decimal by the amount saved: 0.19 × $23 = $4.37.
Therefore, Abebe's mom will give him an additional $4.37.
To start the school year, a teacher spends $54.35 in school supplies for her classroom. During the course of the year, she will restock her supplies and will spend $22 each time she restocks the supplies. The expression below describes this situation.
22x+54.35
In this expression, what does the term 22x describe?
A. the amount she spends restocking her supplies
B. the total amount she spends money on restocking her supplies
C. the number of times she restocks her supplies
D. the amount she originally spends on supplies
Answer: B. the total amount she spends money on restocking her supplies
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
During the course of the year, she will restock her supplies and will spend $22 each time she restocks the supplies
22x+54.35
SO, the term 22x equals to $22 multiplied by the times she restocks the supplies. For example: if she restocks the supplies 5 times, the total amount will be:
22 (5)+ 54.35
So, the term 22x describes the total amount she spends money on restocking her supplies. option B
how to solve for x for a parallelogram
Answer:
11) 11x-10
x=10
Step-by-step explanation:
SPEED RUN
Tia kayaked 2400 meters at a constant rate in 1.5 hours on Saturday. On Sunday, she kayaked 200 meters per hour faster. What was Tia’s average rate on Sunday? A. 1600 meters per hour B. 1800 meters per hour C. 2000 meters per hour D. 2200 meters per hour
Since Tia kayaked 2400 meters at a constant rate in 1.5 hours on Saturday. On Sunday, she kayaked 200 meters per hour faster. Tia’s average rate on Sunday is B. 1800 meters per hour
What is average rate?Average rate is the change of quantity with time.
Since Tia kayaked 2400 meters at a constant rate in 1.5 hours on Saturday. On Sunday, she kayaked 200 meters per hour faster. To find Tia’s average rate on Sunday, we proceed as follows
To find Tia's average rate on Sunday, we first need to find Tia's average rate or speed on Saturday.
Tia's speed on Saturday, s = d/t where
d = distance kayaked on Saturday and t = time kayaked on SaturdaySince
d = 2400 m andt = 1.5 hSubstituting the values of the variables into the equation, we have that
s = d/t
= 2400 m/1.5 h
= 1600 m/h
Sine Tia kayaked 200 meters per hour faster on Sunday, Tia's average rate or speed on Sunday is s' = 1600 meters per hour + 200 meters per hour = 1800 meters per hour
So, Tia’s average rate on Sunday is B. 1800 meters per hour
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Tia's average rate on Sunday was 1800 meters per hour, as she kayaked at a speed that was 200 meters per hour faster than her speed on Saturday which was 1600 meters per hour.
Explanation:To calculate Tia's average rate on Sunday, we first need to find her speed on Saturday. Given that she kayaked 2400 meters in 1.5 hours, we can apply the formula speed = distance/time to find that her speed on Saturday was 1600 meters per hour (2400m/1.5h = 1600 m/h). On Sunday, Tia kayaked 200 meters per hour faster than her Saturday's speed, making her average rate on Sunday 1800 meters per hour (1600 m/h + 200 m/h).
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Write equation that describes the function
The equation that describes the function is f(x) = -x + 1
Function:A function is just a relationship between an input and an output values.The table represents a linear function. Therefore, let's use slope formula to
write the equation;
y = mx + bwhere
m = slope
b = y-intercept
m = -2 - 0 / 3 - 1 = - 2 / 2 = -1
y = -x + b
let's find b using (1, 0)
0 = -1 + b
b = 1
Therefore,
y = -x + 1
The function can be written as f(x) = -x + 1
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To determine the diameter of the sun, an astronomer might sight with a transit (a devise used by surveyors for measuring angles), first to one edge of the sun and then to the other, finding that the included angle equals 32 minutes (32'). Assuming that the distance from the Earth to the sun is 92,919,800 miles, calculate the diameter of the sun.
Final answer:
The astronomer calculates the diameter of the Sun using trigonometry and the given angle and distance, arriving at an approximate value of 1,727,804 miles which is a reasonable estimate when compared to the actual diameter of the Sun.
Explanation:
To calculate the diameter of the Sun, the astronomer uses the given angular size and the distance from the Earth to the Sun. Since we have the angle of 32 minutes (which is about 0.533° when converted to degrees), we can set up the following relationship using trigonometry:
diameter of the Sun = 2 × (distance to the Sun) × tan(½ × angular size in radians)
Let's convert the angular size from minutes to degrees and then to radians:
32 minutes = 32' / 60 = 0.533°
To convert degrees to radians, we use the fact that 180° is equivalent to π radians:
0.533° × (π radians / 180°) = 0.0093 radians
Now, we can use the distance to the Sun which is given as 92,919,800 miles and apply the formula:
diameter of the Sun = 2 × 92,919,800 miles × tan(0.0093 radians)
Performing the calculation:
diameter of the Sun ≈ 2 × 92,919,800 × 0.0093
diameter of the Sun ≈ 1,727,804 miles
This is an approximation because the angular size varies slightly due to the elliptical orbit of Earth. Comparing to the actual diameter of the Sun, which is about 1.39 million kilometers (or about 864,000 miles), we can see that our calculated value is a reasonable estimate, keeping in mind that trigonometric calculations rely on a circular orbit assumption and ideal conditions.
It took a cheetah 45 minutes to run from Jungle A to Jungle B. If the average speed for the trip was 80 km/h, what is the distance between the two jungles.
PLZ HELP! ITS HOMEWORK!!!!
In if 5/7 of students are wearing jeans today and there are about 27 students in the class how many students are wearing the jeans today
Final answer:
By calculating 5/7 of 27, we find that approximately 19 students are wearing jeans today after rounding down to the nearest whole number.
Explanation:
To find out how many students are wearing jeans, we need to calculate 5/7 of the 27 students in the class.
First, we determine the value of one seventh of the class by dividing the total number of students by 7:
27 ÷ 7 = 3.8571 (we can round this to 3.86 for simplicity)
Next, we multiply this result by 5 to find five sevenths:
3.86 × 5 = 19.3
Since we cannot have a fraction of a student, we round down to the nearest whole number. Therefore, approximately 19 students are wearing jeans today.
It's important to understand and apply fractions and division to solve such mathematical problems. This example showcases the practical application of these concepts.
12s + 4 + 4s - 2 simplified need help with school work
What is the value of the function at x = −2?
Answer:
3.
Step-by-step explanation:
We have been given graph of a function. We are asked to find the value of our given function at [tex]x=-2[/tex].
To find the value of our given function at [tex]x=-2[/tex], we need to find the y-value of our given function when [tex]x=-2[/tex].
We can see that value of y-coordinate is 3, when [tex]x=-2[/tex], therefore, at [tex]x=-2[/tex] the value of the function is 3.
For every real number x, y, and z, the statement (x – y)z = xz – yz is _____ true. An algebraic expression in simplest form _____ has like terms.
The statement (x – y)z = xz – yz is always true due to the distributive property in mathematics. Moreover, an algebraic expression in the simplest form does have like terms. Like terms are grouped together to simplify the expression.
Explanation:For every real number x, y, and z, the statement (x – y)z = xz – yz is always true. This is an illustration of the distributive property in mathematics, which states that for all real numbers, the equation a(b + c) = ab + ac holds true. In the given equation, the place of 'a' is taken by 'z', while 'x' and 'y' replace 'b' and 'c' respectively.
On the other hand, an algebraic expression in simplest form does have like terms. Like terms are terms with the same variable part. For instance, in the expression 3x2 + 2x - x2 + 4 +5x - 2, the like terms can be combined to simplify the expression to 2x2 + 7x + 2.
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Which equation correctly applies the distributive property? −1.5⋅(6⋅1.25)=(−1.5⋅6)⋅1.25 70+2.028=(70⋅2)+(70⋅0.02)+(70⋅0.008) (0.7⋅0.7)+(0.7⋅0.9)+(0.7⋅0.2)=0.7⋅(0.7+0.9+0.2) −2.5⋅0.6⋅5.8=−2.5⋅5.8⋅0.6
what percent of 32 is 4
Mia hiked along a 2,250-foot mountain trail. She stopped 4 times along the way to rest and then a fifth time at the end of the trail, and she walked the same distance between each stop,How far did Mia hike before the first stop?
Answer:
Mia hiked 450 ft before the first stop.
Step-by-step explanation:
Mia hiked along a 2250 foot mountain trail.
She stopped 4 times, she rested and after that stopped 5 times.
She walked the same distance between each stop.
It means 5 stops and the same distance with each time.
We need to calculate the distance between each stop. Total distance T = 2250 ft, and stops S = 5.
We can isolate the distance of each Stop E from:
T = S*E
E = T/S = (2250 ft)/(5)
E = 450 ft.
Finally, She hiked 450 ft before the first stop.
Mia hiked 450 feet before the first stop.
What is the distance?Distance is defined as the product of speed and time.
What are Arithmetic operations?Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions.
The operator that performs the arithmetic operations is called the arithmetic operator.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
/ Division operation: Divides left-hand operand by right-hand operand
For example 4/2 = 2
Given that Mia hiked along a 2250-foot mountain trail.
She stopped 4 times along the way to rest and then a fifth time at the end of the trail,
And she walked the same distance between each stop.
It indicates 5 stops with a constant distance between them.
To determine the distance between each stop.
Total distance D = 2250 ft, and stops X = 5.
Each Stop Y's separation from the other can be determined.:
⇒ D = X×Y
⇒ Y = D/X
Substitute the value of D and X in the above equation,
⇒ Y = (2250 feet)/5
Divided by 5
⇒ Y = 450 feet.
Hence, Mia hiked 450 feet before the first stop.
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Day Temperature
1 13
2 15
3 22
4 12
5 22
6 18
7 18
8 22
9 11
10 13
11 20
12 21
You record the temperature for 12 days. Which number summarizes all of the data with a single number?
A) 4.2
B) 11
C) 16
D) 17.25
Answer:
D) 17.25
Step-by-step explanation:
If you want to summarize all the data points with a single number you want a measure of center such as mean. The mean for the data set is 17.25. All the others represent a measure of spread.
Answer:
17.25
Step-by-step explanation:
How is the sentence "10 more than P is -3" written as an equation
p-3=10
P+10=-3
P+10=3
P=10-3
The correct expression is P + 10 = -3
We have a sentence - "10 more than P is -3".
We have to determine the expression that represents the sentence.
Express the statement - "The difference of x and y is equal to n" in the form of expression.The expression representing the above statement is -
n = x - y
According to the question, we have -
10 more than P is -3
We can write it as a expression -
P + 10 = -3
Hence, the correct expression is P + 10 = -3
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Subtract. 125−(−35) Enter your answer, in simplest form, in the box.
Answer:
The answer is 2 actually, this is a fraction question.
Step-by-step explanation:
When we subtract 125−(−35) the result will be 160.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given expression is 125−(−35)
Subtraction is an operation that represents removal of objects from a collection.
Minus is the operator of subtraction.
One hundred twenty five minus of minus thirty five.
We know that when minus is multiplied with minus operator the result will be positive.
So 125+35
When one hundred twenty five is added with thirty five the result will be one hundred sixty
160
Hence, when we subtract 125−(−35) the result will be 160.
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PLEASE HELP I WILL GIVE BRAINLIEST TO WHO ANSWERS these two parts correctly
Simplify 2 to the fifth power over 3 squared all raised to the fourth power. 2 to the twentieth power over 3 to the eighth power 2 to the ninth power over 3 to the eigth power 8 to the fifth power over 12 squared 2 over 3 squared
2 to the fifth power over 3 squared all raised to the fourth power
[tex]\left(\dfrac{2^5}{3^2}\right)^4=\dfrac{(2^5)^4}{(3^2)^4}=\dfrac{2^{5\cdot4}}{3^{2\cdot4}}=\dfrac{2^{20}}{3^8}[/tex]
Answer: 2 to the twentieth power over 3 to the eighth power
Used:
[tex]\left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}\\\\(a^n)^m=a^{n\cdot m}[/tex]
Answer:
yes
Step-by-step explanation:
Which equation demonstrates the distributive property?
A) 81 + 18 = 99
B) 81 x 18 = 18 x 81
C) 81 + 18 = 9(9 + 2)
D) (9 + 2)9 = 9(9 + 2)
33.2g of sugar is needed to make 4 cakes. How much sugar is needed for 6 cakes?
Answer:
49.8 grams.
Step-by-step explanation:
We have been given that 33.2 g of sugar is needed to make 4 cakes.
First of all, we will find quantity of sugar needed to make one cake as:
[tex]\text{Sugar needed to make one cake}=\frac{33.2\text{ gm}}{4}[/tex]
[tex]\text{Sugar needed to make one cake}=8.3\text{ gm}[/tex]
To find quantity of sugar needed to make 6 cakes, we will multiply 6 by 8.3 grams.
[tex]\text{Sugar needed to make 6 cakes}=6\times 8.3\text{ gm}[/tex]
[tex]\text{Sugar needed to make 6 cakes}=49.8\text{ gm}[/tex]
Therefore, 49.8 grams of sugar is needed for 6 cakes.
The table shows the number of calories in four meals and the cost of each meal.
Which best describes the strength of the model?
a weak positive correlation
a strong positive correlation
a weak negative correlation
a strong negative correlation
Answer:
A weak negative correlation
Step-by-step explanation:
[tex]correlation, r = \frac{∑(y-\alpha)(x-\beta }{\sqrt{∑(y-\alpha)^2∑(x-\beta )^2 } }[/tex]
where,
[tex]\alpha = \frac{∑y}{n} \\\beta =\frac{∑x}{n} \\∑ = summation[/tex]
[tex]\alpha = \frac{3230}{4} = 807.5\\\\\\\beta =\frac{46}{4} = 11.5[/tex]
[tex]therefore,\\\\r= -0.12924[/tex]
This represents a weak negative correlation
Answer:A weak Negative correlation
Step-by-step explanation:
How to rotate a triangle 90 degrees counter clockwise about the origin
Joanna ran a mile in physical education class. After resting for one hour, her heart rate was 60 beats per minute. If her heart rate decreased by 2/5, what was her heart rate immediately after she ran the mile?
Carmella sells homemade pies for $10 a pie. It costs $2 for the ingredients to bake each pie. Carmella bought a new oven for $600. How many pies must Carmella bake and sell before she recovers the cost of the oven?
Can someone help with numbers 15 and 16
For what values of b does the value of the fraction 5−2b /4 belong to the interval [−2; 1]?
Answer: The required value of b lies in the interval [0.5, 6.5].
Step-by-step explanation: We are given to find the value of b so that the following fraction belong to the interval [−2, 1] :
[tex]f=\dfrac{5-2b}{4}.[/tex]
According to the given information, we can write
[tex]-2\leq f\leq 1\\\\\Rightarrow -2\leq \dfrac{5-2b}{4}\leq1\\\\\Rightarrow -8\leq 5-2b\leq 4\\\\\Rightarrow -8-5\leq-2b\leq 4-5\\\\\Rightarrow -13\leq -2b\leq -1\\\\\Rightarrow 13\geq 2b\geq 1\\\\\Rightarrow \dfrac{13}{2}\geq b\geq \dfrac{1}{2}\\\\\Rightarrow 6.5\geq b\geq 0.50[/tex]
Thus, the required value of b lies in the interval [0.5, 6.5].
show the numbers in order from least to greatest? 323 , 3.7, 3.65
9x*2 + 16y*2 - 108x -64y - 188 = 0
Webster Digital received a promissory note of $8,000 for 9 months at 7% simple interest from one of its customers. After 4 months, the note was discounted at Bank of Aventura at a discount rate of 10%. What are the proceeds Webster Digital will receive from the discounted note? (Round to the nearest cent)