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max2010maxim [7]
3 years ago
5

20. Find the value of the variable y in the equation –5.7 + y = 8.2. A. –2.5 B. 2.5 C. –13.9 D. 13.9

Mathematics
1 answer:
Elena L [17]3 years ago
8 0

-5.7+y=8.2\qquad\text{add 5.7 to both sides}\\\\\boxed{y=13.9}\to\boxed{D.}

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. John has two coupons to use at a clothing store. One is for $20 off and the other is for 20% off. John wants to purchase a shi
zlopas [31]

Complete question :

John has two coupons to use at a clothing store. One is for $20 off and the other is for 20% off. John wants to purchase a shirt with one of the coupons and wants to pay the least amount that he can. Choose the answer that BEST describes the situation. * 1 point A. The shirt will have the lowest price with the $20 off coupon. B. The shirt will have the lowest price with the 20% off coupon. C. The shirt will cost the same with either coupon. D. It depends on the cost of the shirt as to which coupon will help John pay the lowest price.

Answer: D. It depends on the cost of the shirt as to which coupon will help John pay the lowest price.

Step-by-step explanation:

Given two different coupon options :

First: 20% off

Second = $20 off

To our hase with one which enables one to pay the amount of money :

The price of the shirt will determine which of the coupons will give the least amount. For instance, a shirts which which cost below $100 will require the $20 off coupon in other to attain the least payment amount. However for shirts which cost above $100, the 20% coupon yield the least amount. Shirts which cost $100. Both coupons yields the same discount amount.

6 0
3 years ago
14+y = 3y+2, Find y with a step-by-step explanation.
mrs_skeptik [129]

Answer:

y= 6

Step-by-step explanation:

1. Rearrange the terms before the equal sign: 14+y=3y+2-> y+14=3y+2

2. Subtract 14 from both sides: y+14=3y+2-> y=3y-12

                                                     -14       -14

3. Subtract 3y from both sides: y=3y-12-> y-3y= -12

                                                -3y  -3y  

4. Combine like terms: y-3y= -12-> -2y= -12

                                      1-3 keep the y

5. Divide both sides by -2: -2y= -12-> y= 6

                                              /2    /2

6. So, you're left with y= 6

6 0
2 years ago
A company charger shipping fee that is 4.5% of the purchase price for all items it ships. What is the fe to ship an item that co
kenny6666 [7]

Answer:

This is an percentage change question, by any chance you have a maths textbook, look for units that contains the topic: Percentage Change. Now, let's get solving! :)

Step-by-step explanation:

Firstly, you must multiply 4.5% with 56. That is: shipping fees x purchase price

That gives ($) 2.52 (this is your answer)

No addition/totaling needed as the question asked ONLY for the shipping fees.

Stay safe and Merry Christmas! :)

3 0
2 years ago
Strawberry's are 3.50$ a pound and you bought 18.25$ worth of strawberries
yarga [219]
The correct answer is 5.21
3 0
3 years ago
Read 2 more answers
Suppose a-b=0 which one of these expressions equals ab
I am Lyosha [343]

Answer:

  E)  b^2

Step-by-step explanation:

Solving the first equation for a, we get ...

  a - b = 0

  a = b . . . . . . add b to both sides

Now, the expression ab can be rewritten as

  ab = bb = b^2 . . . . . . substitute b for a

6 0
3 years ago
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