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11111nata11111 [884]
3 years ago
9

Which statement best describes the effect of the confounding variable?

Mathematics
2 answers:
Mama L [17]3 years ago
7 0

Answer:

(D) Because vehicles of different sizes may respond differently to the additive, it may be difficult to conclude whether the additive improves gas mileage for all vehicles.

ED2021

DiKsa [7]3 years ago
6 0

Answer:

D

Step-by-step explanation:

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How much will the total bill be if 52.60 is before tax and the sale tax is 8% and decide to leave 20% tip
Gekata [30.6K]

Answer:$68.17

Step-by-step explanation:52.60 times 1.08= 56.81

56.81 times 1.20=68.17

3 0
3 years ago
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Write a sentence describing a situation that could be represented by the equation 4 ÷ 1/3 =?
klio [65]
4 divided by 1 out of 3 is equal to an unknown value solve for the unknown value
8 0
3 years ago
Robert is a salesperson. He receives 7% commission on each piece of electronic equipment he sells. How much commission will he r
Shalnov [3]

Answer:

He receives $476 in comission.

Step-by-step explanation:

This question can be solved using a rule of three.

$6,800 is 100% = 1. x, which is his commision, is 7% = 0.07. Then

6800 - 1

x - 0.07

x = 6800*0.07

x = 476

He receives $476 in comission.

7 0
3 years ago
The sum of two numbers is 44 and the difference is 14. What are the numbers?
Fudgin [204]

Answer:

Hope it may help u

Step-by-step explanation:

The sum of two numbers is 44 and their difference is 14. What are the two numbers? Let's start by calling the two numbers we are looking for x and y.

The sum of x and y is 44. In other words, x plus y equals 44 and can be written as equation A:

x + y = 44

The difference between x and y is 14. In other words, x minus y equals 14 and can be written as equation B:

x - y = 14

Now solve equation B for x to get the revised equation B:

x - y = 14

x = 14 + y

Then substitute x in equation A from the revised equation B and then solve for y:

x + y = 44

14 + y + y = 44

14 + 2y = 44

2y = 30

y = 15

Now we know y is 15. Which means that we can substitute y for 15 in equation A and solve for x:

x + y = 44

x + 15 = 44

X = 29

Summary: The sum of two numbers is 44 and their difference is 14. What are the two numbers? Answer: 29 and 15 as proven here:

Sum: 29 + 15 = 44

Difference: 29 - 15 = 14

6 0
3 years ago
Read 2 more answers
3K - 2 + 4k = 2K + 5 - 6k
lesya [120]

Answer:

2.3

Step-by-step explanation:

on the left side u add 4k+3k=7k

on the right side u subtract 2k-6k=4k

then on the left side u add 2 to each side and u get rid of the 2 on the left side

on the right side u add 5+2=7

then on the right side u add 4k on each side and get rid of the 4k on the right

on the left u subtract 7k-4k=3k

on both sides divide by 3

7 0
3 years ago
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