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nexus9112 [7]
3 years ago
12

HELP! Decide whether each table could represent a proportional relationship. if the relationship could be proportional, what wou

ld be the constant of proportionality?
a. Annie’s Attic is giving away $5 off coupons

|original price| sale price|

—————————————

|$15. | $10. |

—————————————

|$25. |$20. |

—————————————

|$35. |$30. |

————————————-


b. Bettie’s Boutique is having a 20% off sale.

|original price| sale price|

—————————————

|$15. | $12. |

—————————————

|$25. |$20. |

—————————————

|$35. |$28. |

————————————-

Original price is left of tables and sale price is right of tables
Mathematics
2 answers:
Rashid [163]3 years ago
6 0

Answer:

The first one

Step-by-step explanation:

The slae price is $5 less  for everything in the first one.

LUCKY_DIMON [66]3 years ago
3 0
The first one is the answer
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In the system of equations below, which variable would it be easiest to solve for? x + 4 y = 14. 3 x + 2 y = 12 The easiest to s
Murljashka [212]

Answer:

<h2>The easiest to solve for is x in the first equation</h2>

Step-by-step explanation:

Given the system of equation, x + 4 y = 14. and 3 x + 2 y = 12, to solve for x, we can use the elimination method of solving simultaneous equation. We need to get y first.

x + 4 y = 14............ 1 * 3

3 x + 2 y = 12 ............ 2  * 1

Lets eliminate x first. Multiply equation 1 by 3 and subtract from equation 2.

3x + 12 y = 42.

3 x + 2 y = 12

Taking the diffrence;

12-2y =42 - 12

10y = 30

y = 3

From equation 1, x = 14-4y

x = 14-4(3)

x = 14-12

x = 2

It can be seen that the easiest way to get the value of x is by using the first equation and we are able to do the substitute easily <u>because the variable x has no coefficient in equation 1 compare to equation 2 </u>as such it will be easier to make the substitute for x in the first equation.

5 0
3 years ago
Ratio of 15 days over 3 jobs
Ann [662]
You need to divide the two numbers. 15/3 = 5

For every 5 days you do 1 job

5:1
7 0
3 years ago
An apple farmer is deciding how to use each day's harvest. She can use the harvest to produce apple cider or apple juice for the
Andreas93 [3]

Answer:For this item, we let x and y be the number of bushels of apple that will be used to produce apple cider and apple juice, respectively. The situation above is best represented by the following equations,

                                           x + y = 18

                                          20x + 15y = 330

The values of x and y from the equations above are 12 and 6, respectively. Therefore, 12 bushels will be used to make apple cider and 6 bushels will be used to make apple juice.

Step-by-step explanation:

3 0
3 years ago
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What 2 numbers multiply to -147 but add to -14?
Bezzdna [24]
Okay, so let's go over multiplying negative numbers.  A positive times a positive is a positive, right?  But a negative times a negative is also a positive.  Only a negative times a positive (or a positive times a negative) gives you a negative number.  So, we know that one of our 2 numbers in this question must be negative; the other must be positive.

Let's now take a look at the factors of -147, starting with the positives.  Obviously, -147 and 1 are factors: -147 * 1 = -147.  What other factors of -147 are there?

What about 7?  Try it: -147 / 7 = -21.  So here are two factors: -21, and 7.  They multiply to -147.  Do they add up to -14?  Let's see: -21+7 = 7+(-21) = 7-21= -14.  Yup, that works!

Answer: -21 and 7
4 0
3 years ago
Four student work to find an estimate for √27. Who os the closet to finding the true estimate
11111nata11111 [884]

Answer:

simplified version is 3\sqrt{3}

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2.) square each number in the radical

\sqrt{9} *\sqrt{3}

3.) simplify

3\sqrt{3}

6 0
3 years ago
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