Mathematics Middle School

Please help me with these questions (: Ty
1.) Multiply.

1.25(−3.6)

Enter your answer as a decimal in the box.

2.) Divide.

−1/9÷3/4

A.)−4 2/7

B.)−1 1/2

C.)1 1/2

D.)4 2/7

Ty <3

Answers

Answer 1
1 = -4.5
2 = a
it's making me put 20 characters to answer this so ignore all this nonsense

Related Questions

Something weighed 3/4 ton how many pounds did this thing weigh

Answers

Hey there!

The answer that you put down is correct! 3/4 ton= 1500 pounds

can someone tell me the scientific notation for this?

Answers

Count out the number of zeros. While there a lot of zeros, luckily they are grouped with the commas to make it simpler on the eyes.

There are 4 groups of three zeros per group giving 4*3 = 12 zeros plus the 0 just after the 6. So in total 12+1 = 13 zeros

If we placed the decimal point just after the 6 we'd have 6.0

To get 6.0 back to the original number 60,000,000,000,000 we need to move the decimal point 13 times to the right. We move it 1 time per zero. 

So 13 is the exponent. The value 6.0 or simply 6 is the coefficient. 

Overall, this means 
[tex]60,000,000,000,000 = 6 \times 10^{13}[/tex]

the final answer is therefore
[tex]6 \times 10^{13}[/tex]
(six times ten to the thirteenth power)

Side Note: The number 60,000,000,000,000 written in English is "sixty trillion"

John and peter shared $280 in the ratio 7:3 . How much money did John receive than peter? Plz help!!!

Answers

7x+3x=280
10x=280
x=28
John 7*28= 196$
Peter 3*28=84$

Braden has r red peppers and 10 green peppers. Write an expression that shows how many peppers Braden has.

Answers

The amount of peppers Braden has is red peppers + green peppers

Braden has r red peppers
He also has 10 green peppers
P stands for the amount of peppers he has in all

So you equation will look like
P = r + 10
For the expression, you do not need to have P, because it doesn't specify for you to 'know' what the total amount is. So your answer is r + 10 

hope this helps

A and b thank you on 92

Answers

a. Each student will get 8/10 of the pizza or .8 of the pizza.
Not sure how you would go about b though.

an item is purchased for a wholesale price of $48 and will be sold at a 55 percent markup. which expression should be used to find the amount of the markup

Answers

48 times 1.55 equals 74.4.

Answer:

$48(0.55)

Step-by-step explanation:

a gym membership costs $30 to join and $ 12 each month. write and use an algebraic expression to find the cost of the gym membership fo 6 months

Answers

Gym membership = G

G = 12x+30
G = 12(6)+30
G = 72+30
G = 102
30+12m

30+12(6)

30+ 72

102

The cost of the gym membership for 6 months is $102.

Hope this helps!

The length of an object is measured as 84.8 centimeters. What is this measurement in scientific notation

Answers

Final answer:

The measurement of 84.8 centimeters in scientific notation is represented as 8.48 x 10² centimeters.

Explanation:

To express the length of an object measured as 84.8 centimeters in scientific notation, we need to place the decimal after the first non-zero digit and count the number of places the decimal has moved. Here, the decimal moves two places to the left, so the exponent will be 2. Therefore, the length in scientific notation is 8.48 x 10² centimeters.

The length of 84.8 centimeters can be written in scientific notation as 8.48 × 101 cm.

To convert the given measurement to scientific notation, move the decimal point to the right until there is only one non-zero digit to the left of the decimal point. Count the number of places you moved the decimal point and use it as the exponent of 10. In this case, we moved the decimal point one place to the right, so the exponent is 1.

Final answer:

The measurement of 84.8 centimeters in scientific notation is 8.48 x 10¹ cm.

Explanation:

The length of the object in scientific notation is 8.5 x 10¹ cm.

Here's the breakdown:

Identify the significant digits: In 84.8 centimeters, both the "8" and the "4" are significant, as they contribute to the precision of the measurement. The trailing "8" is also significant because it's between two significant digits.

Move the decimal: Count the positions from the leading significant digit ("8") to the right until you reach the rightmost significant digit ("8"). In this case, there are 0 positions.

Write the exponent: Since the decimal didn't move, the exponent of 10 will be 0, but we typically write it explicitly as 10⁰.

Combine the coefficient and exponent: Combine the leading significant digit ("8") with the decimal and multiply by 10 raised to the adjusted exponent: 8.5 x 10⁰.

Therefore, the length of the object in scientific notation is 8.5 x 10¹ cm.

How do u solve- if 3 onions way 0.75 pounds how much do 10 Onions weigh.

Answers

divide .75 by 3

.75/3

that will give u the weight of one onion
which is:

.25

now multiply .25 by 10 and this will give you the weight of 10 onions

.25(10)

2.5lbs

Write the equation of the line that passes through the given points. Include your work in your final answer. Type your answer in the box provided or use the upload option to submit your solution.

(2, 3) and (2, 5)

Answers

The equation you use for the slope of this kind of problem is (y2-y1)/(x2-x1). x1 is the first X coordinate, x2 is the second, y1 is the first y coordinate, y2 is the second.

(5-3)/(2-2)
2/0
This equation has an UNDEFINED SLOPE, as it is just a vertical line.

write the value of the underlined digit 2.704 (4 is underlined)

Answers

Thousandths. Here's why: 

Answer:

0.004

Step-by-step explanation:

2.704 - The value of the digit 2 is 2 ones, or 2.

2.704 - The value of the digit 7 is 7 tenths, or 0.7.

2.704 - The value of the digit 0 is 0 hundredth, or 0.00.

2.704 - The value of the digit 4 is 4 thousandths, or 0.004.

Anyone Help please??!!!

Answers

find 2 numbers when multiplied by each other = 100

sqrt(100) = 10

since the equation has a minus sign

 the answer would be (x+10)(x-10)

Hello.

When we are factoring squared binomials, there’s a pretty simple technique to solving for these.

First, square root the first term (x^2). We get x. Now, let’s square root our second term (100), which we get 10.

Put our square-rooted terms into parenthesis; (x + 10)

Since we have a negative sign before 100, we need to add a second parenthesis with the same terms, but 10 now needs to be negative; (x - 10)

Put these two parenthesis next to eachother, and now we have our answer, as we cannot simplify it anymore;
(x - 10)(x + 10)

I hope this helps!

Rebecca ran 12 1/4 miles in 2 1/2 hours. What was your average speed in miles per hour

Answers

Divide your miles by hour hours:
12.25/2.5 = 4.9 
Her average speed was 4.9 miles per hour

Which ordered pair is part of the equation y = 3x -4?
A. (1,1)
B. (2,2)
C. (3,6)
D. (4,9)

Answers

I substituted the ordered pairs into the equation.

(1,1)

1 = 3 * 1 - 4  The equation equals -1 for the y, this ordered pair does not
(y)      (x)       make this equation true.

(2,2)

2 = 3 * 2 - 4  This equation equals 2 for the y, this ordered pair makes this 
(y)      (x)       equation true.  

(3,6)

6 = 3 * 3 - 4  This equation equals 5 for the y, this ordered pair does not 
(y)       (x)     make this equation true.

(4,9)

9 = 3 * 4 - 4  This equation equals 8 for the y, this ordered pair does not
(y)      (x)       make this equation true

So I would go with B. (2,2)

Aaron's score on a pre-algebra test was 92. His score on a second pre-algebra test was 84.Which of the following is closest to the percent of decrease in aaron score?

.087
.095
8.7
9.5?

Answers

The difference between the 92 and 84 is 8; so in this case since it is the number closest to the difference of the two percentages, it would be 8.7.

Final answer:

The percent of decrease in Aaron's score from 92 to 84 is calculated by finding the difference, dividing by the original score, and multiplying by 100, which gives approximately 8.7%.

Explanation:

To calculate the percent of decrease in Aaron's score, we first find the difference in scores, then divide by the original score, and finally multiply by 100 to get the percent change. Aaron's score decreased from 92 to 84. So, the difference is 92 - 84 = 8. The percent decrease is then (8 ÷ 92) × 100, which approximates to 8.6956521739%. Rounded to two decimal places, the closest answer is 8.7%. Therefore, the correct option is 8.7.

Mike has been saving his allowance and then he got $25 for his birthday. He then went to the toy store and spent half his money and now has $34 left. How much allowance money had he saved?

Answers

The allowance saved by Mike after expenditure will be equal to $43.

What is an equation?

Equations are mathematical expressions that have two algebraic symbols on either side of the equal (=) sign.

The equality of the left and right expressions serves as an illustration of this relationship. An easy equation to remember is the left side equals the right side.

As per the data provided in the question,

Let the allowance saved by Mike is x.

Amount received on birthday = $25

And amount left = $34

Then, the equation will be,

(x + 25)/2 = 34

Solve the equation for x,

x + 25 = 38

x = 38 - 25

x = $43

To know more about equation:

https://brainly.com/question/29657983

#SPJ5

Mike had saved $43 from his allowance money before receiving $25 for his birthday and spending half of the total amount, leaving him with $34.

Mike initially had a certain amount of allowance money saved. After receiving $25 for his birthday, he then went to a toy store and spent half of his total money. Post-purchase, he has $34 remaining. To find out how much allowance money Mike had originally saved, we need to determine what half of his total money is.

We know that:

Mike has $34 left after spending half his money.

Therefore, before spending, Mike had $34 (the amount left) times 2.

$34 x 2 = $68 was the total amount Mike had before spending.

Since he received $25 for his birthday, the allowance money he had saved before his birthday was $68 - $25.

$68 - $25 = $43 was the amount Mike had saved from his allowance.

which is the equation to the given line?

Answers

-2 - -2. 0
_______= _____
2- -5. -7
The equation is,
[tex] \frac{ - 2 - ( - 2)}{2 - ( - 5)} = 0[/tex]
The line is 0 since it is going horizontally.

Find the mean, median, mode, and range of this data: 49, 49, 54, 55, 52, 49, 55. If necessary, round to the nearest tenth.
A. 51.9, 52, 49, 6
B. 52.9, 52, 49, 104
C. 51.9, 53, 49, 6
D. 52, 52.9, 49, 104

Answers

The answer is A.

Hope I helped.

Answer: A. 51.9, 52, 49, 6

Step-by-step explanation:

The given data : 49, 49, 54, 55, 52, 49, 55

[tex]{\text{Mean =}\dfrac{\text{Sum of observations}}{\text{Number of observations}}[/tex]

[tex]{\text{Mean =}\dfrac{363}{7}=51.8571428571\approx51.9[/tex]

For Median , first we arrange observations in order.

49, 49, 49, 52, 54, 55, 55

Median = Middlemost observation = 52

Mode = Most repeated observation = 49

Range = Maximum number -Minimum number

[tex]=55-49=6[/tex]

determine if this triangle is acute, obtuse, right, or impossible

Answers

make a graph and plot the numbers










Acute would be the answer!

Sasha spent $6 on packages of gum how many more packages of gum that cost $ 1.20 each can she buy if she has a $20 bill

Answers

20 - 6 = 14

14/1.20 = 11.67

So, Sasha can by 11 more packages of gum.

I hope that helped! c:

2/5 ab

What are the factors of the expression?

Drag all of the factors of the expression into the box.

please help me :D

the points are 50

Answers

2/5, a, and b is the answer

the answer is 2/5, a, b

Find the y-intercept of the line:

2x + 4y = 8

Question 5 options:

a) (2,4)
b) (0,2)
c) (4,0)
d) (4,2)

Answers

(0,8)

Glad I could help!!!

A market buys mixed nuts at 12:50 per pound they want to make a 22% profit what should I charge for the retail price

Answers

Im pretty sure 9.75, I hope this helps you :)

solve 3x - 2x + 4 = 5x - 4x - 8

Answers

first add "like terms" (terms that have the same exponent for the x variable):
3x-2x+4=5x-4x-8
x+4=x-8
actually, it is not possible for these to be equal. Because if you subtract x from both sides you get 4=-8 which is not true. did you forget to write an exponent or something in the equations?

Fanga ran 28 miles per in 4 hours She ran at a rate of how many miles per hour

Answers

7 mph. 28 divided by 4 is 7. Or 7 miles in one hour
The answer for this problem is 7

Andrew has two part time jobs. One pays $6 per hour and the other pays $10 per hour. He wants to make $366 per week. Write an equation in standard form that describes this situation. If he is only allowed to work 15 hours per week at the $10 per hour job, how many hours does he need to work per week in his $6 per hour job in order to achieve his goal?

Answers

He would need to work 36 hours at his $6 job to get $366 a week.

Hope this helps!
He needs to work 36 hours for the $6 per hour because:
6*36=216
10*15=150
216+150=366

What is the product in lowest terms?
1/6 x 5/7. ( / means fractions)

1. 6/13
2. 5/13
3. 1/7
4. 5/42

Answers

1/6 x 5/7
1 x 5/6 x 7
5/6 x 7
=5/42 is in the simplest form
so... the answer would be 4. 5/42

what is the value of w in the equation w-5.5=-3.4

Answers

Add -5.5 to both sides to make the equation:

w=2.1

Hope this helps!

w-5.5 = -3.4

 add 5.5 to each side

w = -3.4 + 5.5 = 5.5-3.4 = 2.1

w = 2.1

Which best describe the meaning of this function notation ? Cost(weight

A. The weight is greater than the cost.
B. The weight depends on the cost
C.The cost depends on the weight
D.The cost is multiplied by the weight

Answers

I think in a logical sense it would be C because usually depending on how big or small the item is then the cost will vary to that amount of grams or tons is in that item you're purchasing. So I would go with C but I'm not completely sure.


Hope this helps :) 

the sum of two consecutive even integers is -298. What are the integers?

Answers

Answer: -148, -150

n + n + 2 = -298

2n = -300

n = -150

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