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2 years ago

If x=y-7 what is the value of 3x-3 in terms of y

Mathematics

1 answer:

beks73 [17]2 years ago

7 0

$\bf \boxed{x}=y-7
\\\\\\
3x-3\implies 3\left( \boxed{y-7} \right)-3\implies 3y-21-3\implies 3y-24$

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3 years ago

9) Gabe has a 40¢-off coupon for any kind of popcorn. He can choose

Vadim26 [7]

Answer:

Per ounce better buy is <em>Happy popcorn</em>.

Step-by-step explanation:

Given that:

Happy popcorn price for 16 ounces = $1.39

Popper popcorn price for 34 ounces = $2.79

Discount coupon present with Gabe = 40 ¢ = $0.40

To find:

Which brand is the better buy per ounce?

Solution:

First of all, let us calculate the price that Gabe has to pay after the discount coupon being applied.

Price for 16 ounces of Happy popcorn after discount = $1.29 - $0.40 = $0.99

Price for 1 ounce of Happy popcorn after discount = $\frac{\$0.99}{16}$ = $0.062

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Price for 1 ounce of Popper popcorn after discount = $\frac{\$2.39}{34}$ = $0.070

Clearly, per ounce price of Happy popcorn is lesser than that of Popper popcorn.

Therefore per ounce better buy is <em>Happy popcorn</em>.

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2 years ago

Is 2x+10 = -2(x-5) equals

faust18 [17]

First distribute -2 to both x and -5

-2(x) = -2x
-2(-5) = 10

2x + 10 = -2x + 10

False. 2x + 10 ≠ -2x + 10

False is your answer

hope this helps

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3 years ago

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Finger [1]

Answer:

Step-by-step explanation:

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