The other way to write the expression r⋅(18−3) will be (r⋅18)−(r⋅3). Option A is correct.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
It is given that the expression is, r⋅(18−3)
We have to expand the expression in order to write the expression in the other way,
The expanding form can be used to indicate the value of each digit in a number in arithmetic. Numbers that are expressed as the sum of each digit multiplied by its place value are known as expanded numbers.
There are the different identity used in the expanded form as,Use the following identity as
a(b-c) = ab-ac
=r⋅(18−3)
=(r⋅18)−(r⋅3)
Thus, the other way to write the expression r⋅(18−3) will be (r⋅18)−(r⋅3). Option A is correct.
Learn more about the expression here:
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Solve M=h-w/8 for the variable H
Solve the above equation for W
Solve w=x+y/z for y
Solve the equation above for z
The formula for area of a triangle is A=1/2b solve this equation for B
Solve the equation P=kt/v for the letter K
Answer:
Step-by-step explanation:
(1) M = h - [tex]\frac{w}{8}[/tex]
h = M + [tex]\frac{w}{8}[/tex]
(2) M = h - [tex]\frac{w}{8}[/tex]
M - h = -[tex]\frac{w}{8}[/tex]
[tex]\frac{w}{8}[/tex] = h - M
w = 8(h - M)
(3) w = x + [tex]\frac{y}{z}[/tex]
(w-x) = [tex]\frac{y}{z}[/tex]
[tex]\frac{z}{y}[/tex] = [tex]\frac{1}{(w-x)}[/tex]
z = [tex]\frac{y}{w-x}[/tex]
(5) Area of triangle A = [tex]\frac{1}{2}b[/tex]
b = 2A
(6) [tex]P=\frac{kt}{v}[/tex]
⇒ PV = kt
⇒ k = [tex]\frac{PV}{t}[/tex]
What is the first thing you need to do to add 1/9+5/6? A.add the number. B.add the denominators. C.find the least common denominator. D.multiply the numerators by the denominators.
Answer:
c
Step-by-step explanation:
nadia was offered a job for selling ads cor a magazine. She must agree to one of the following paymen options. CHOICE A:$110 for each ad she sells. CHOICE B:a weekly salary of $150,plis $85 for each ad she sells .Wriye and solve an inequality to determine the number of adds nadia would need to sell per week in order for Choice A to be a better choice
Let us say that:
x = is the number of ads that Nadia sold every week
P = payment or amount that she receives every week
So the equations we can formulate for choice A and B are:
choice A: P = 110 x
choice B: P = 150 + 85 x
The amount that she receives for A must be greater than she receives for choice B, so:
110 x > 150 + 85 x (inequality equation)
Calculate for x:
110 x – 85 x > 150
25 x > 150
x > 6
Therefore Nadia must sell more than 6 ads every week so that Choice A would be the better choice.
Final answer:
Nadia would need to sell more than 6 ads per week for Choice A to be a better choice than Choice B. We find this by setting up an inequality of 110x > 150 + 85x (where x represents the number of ads sold), then solving for x.
Explanation:
To determine the number of ads Nadia would need to sell per week for Choice A to be a better choice, we can set up the following income inequalities based on her two payment options:
Choice A: $110 per ad sold.
Choice B: $150 weekly salary + $85 per ad sold.
We want to find when Choice A's income exceeds Choice B's income:
Let x be the number of ads sold. Then, the inequality is:
110x > 150 + 85x
To solve for x:
Subtract 85x from both sides: 110x - 85x > 150
This simplifies to: 25x > 150
Divide both sides by 25: x > 6
Therefore, Nadia would need to sell more than 6 ads per week for Choice A to be the better choice.
Katie is drawing dots on cards to show ways to make 5. Draw dots for Katie. Write addition sentences for two of the cards.
Which is NOT equivalent to 64? A) 26 B) (24 )(4) C) (23 )(42 ) D) 43
Answer:
Look at a factoring tree of 64 and see which does not work:
64 = (8)(8) = (4)(2)(4)(2) = (2)(2)(2)(2)(2)(2)
Therefore the only option which is not true is
23 × 42
Step-by-step explanation:
Colin bought 7 flats of flowers. Each flat contains 24 flowers. How many flowers did he buy?
Allison makes 3 groups of 10 muffins she also makes 7 more muffins how many muffins does she make in all
1. Kim's age is twice that of her sister. When you add Kim's age to her sister's age, you get 36. How old is each sister?
(a) Write an equation that represents the situation. Explain any variable used.
(b) Solve the equation from Part (a). Show your work. State your solution as a complete sentence.
Abby is half as old as her dad,and twice as old as her brother. If her brother is 9 years old,how old is her dad?
This Is 10 Points
Cayley says that the equations p=1.5q and 2/3p q both represent the same proportional relationship. Mariah says that can't be true because the constants of proportionality are different. With which student do you agree? Explain.
Answer:
cayley
Step-by-step explanation:
cuz i said so djsndkwndmdksnsnsnsnsnsns
How to turn 17/20 into percent
Find the ratio of snails to the total number of animals. Then explain it's meaning
The numbers you need to know: 18 to 52
Answer:
Step-by-step explanation it is 18/53
Anita has $300 in her savings account that earns 5% annually. The
interest is not compounded. How much interest will she earn in 1
year?
(Hint: Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.)
she will have $15
if you do 300 times 5% times 1 it will equal $15
Vince has 26 beads.how many different arrays can Vince draw to represent the total number of beads he has? list the sizes of the arrays .
Answer:
Only one set of factors for 26, which is 2 by 13
Laura decides to walk to her job. She walks 1 1/2 miles in 3/5 hour. What is Laura’s walking rate?
Final answer:
Laura's walking rate is calculated by dividing the distance she walked, 1.5 miles, by the time it took, 0.6 hour. Her walking rate is 2.5 miles per hour.
Explanation:
Laura's walking rate can be calculated by dividing the distance she walked by the time it took. Laura walked 1 1/2 miles in 3/5 hour. To find her rate, we will convert 1 1/2 miles to a decimal, which is 1.5 miles, and we convert 3/5 of an hour to minutes or hours in decimal form. Since 3/5 of an hour is the same as 36 minutes (because 60 minutes * 3/5 = 36), we can calculate Laura's walking rate.
To find the rate, we use the formula:
Rate = Distance ÷ Time
So Laura's walking rate is:
Rate = 1.5 miles ÷ 0.6 hour
Rate = 2.5 miles per hour (since 1.5 ÷ 0.6 = 2.5)
Therefore, Laura walks at a rate of 2.5 miles per hour.
Estimate the area of the irregular shape. Explain your method and show your work. (Please help, I’ve been stuck on this problem for forever.)
simplfy 4x(2x-3) distributive property
Madelynne hopped 12 times in 15 seconds what is her hops per minute
Without multiplying, determine the sign of the product (356,864)(−194,758).
The sign of the product is positive because a positive multiplied by a negative is a positive.
The sign of the product is negative because a positive multiplied by a negative is a negative.
The sign of the product is negative because the second number is negative.
The sign of the product is positive because the first number is positive.
Answer:
The correct option is 2.
Step-by-step explanation:
The given expression is
(356,864)(−194,758)
We need to find the sign of the product (356,864)(−194,758) without multiplying.
Sign of two numbers Sign of product
( + ) ( + ) ( + )
( - ) ( + ) ( - )
( + ) ( - ) ( - )
( - ) ( - ) ( + )
In the given expression first terms is positive and second term is negative.
The sign of the product is negative because a positive multiplied by a negative is a negative.
Therefore the correct option is 2.
A cow can eat 25 pounds of hay a day. At that rate, how many pounds of hay can a cow eat in 31 days?
I don’t understand number 4
A local coffee shop serves 2/9 as many customers as a shop run by a national coffee chain. The shop run by the chain serves 502 customers a day. About how many customers does the local shop serve in a day
Answer:
116
Step-by-step explanation:
502/9*2
About 57.8*2
115.6
Round up to 116
The local shop serves about 116 customers a day.
Answer:
The correct answer should and is 116.
Simplify. Remember to write the powers as a positive number.
1. a^−8
2. 1/a^−4
3. a^−2*b^5
4. a^−2*b^−7*c^−8
5. a^2*b^−7*c^−8
6. a^−2*b^7*c^−8
7. a^−2*b^−7*c^8
please answer asap! good points!
Naomi left from an elevation of 7400 ft at 7 a.m. and hike to elevation of 9800 ft by 11 a.m. What was her rate of change in altitude
9800 - 7400 = 2400 feet
11 am - 7 am = 4 hours
2400 / 4 = 600 feet per hour
20 POINTS - PLEASE HELP
Are these irrational or rational? (picture below)
when a number is a multiple of 5 what are the possible values for one digit
What is the value of n in the equation (n – 4) – 3 = 3 – (2n + 3)?
What are three equal ratios to 5/40
Based on your knowledge of how the greenhouse effect works, why does the level of carbon dioxide affect the global temperature?
What is the Slope of the line passing through the points (0,4) and (-8, -1
Enter your answer in the box:
Answer:
The slope is 5/8.
Step-by-step explanation:
Slope formula:
[tex]\displaystyle \frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\displaystyle \frac{(-1)-4}{(-8)-0}= \frac{-5}{-8}=\frac{5}{8}[/tex]
5/8, which is the correct answer.
Hope this helps!