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3 years ago

14

Which equation could be used to solve this problem?

1 answer:

timama [110]3 years ago

8 0

The correct answer is B

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Mrs Tay had 425 cookies at first.

yKpoI14uk [10]

Answer:

425-65=360

360-65=295

Mrs Chan had at first 295 cookies

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3 years ago

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Explain your answer !! <br> Have a nice day <br><br> Will give braisnlt

lora16 [44]

Answer:

The equations are:

$4H + 3P = 13.75$

$2H + 5P = 11.25$

$Hotdog = 2.50$

$Pretzel = 1.25$

Step-by-step explanation:

Let:

$H = hot\ dog$

$P =Pretzel$

For Tina:

$4H + 3P = 13.75$

For Doug:

$2H + 5P = 11.25$

Solving for the price of both items:

We have:

$4H + 3P = 13.75$ --- (1)

$2H + 5P = 11.25$ --- (2)

Multiply (2) by 2

2 * ( $2H + 5P = 11.25$ )

-------------------

$4H + 10P = 22.50$ --- (3)

Subtract (3) from (1)

$4H + 3P = 13.75$

$4H + 10P = 22.50$

----------------------

$4H - 4H + 3P - 10P = 13.75 - 22.50$

$3P - 10P = 13.75 - 22.50$

$-7P = -8.75$

Solve for P

$P = \frac{-8.75}{-7}$

$P = 1.25$

Substitute 1.25 for P in (2)

$2H + 5P = 11.25$

$2H + 5 * 1.25 = 11.25$

$2H + 6.25 = 11.25$

Collect Like Terms

$2H = 11.25-6.25$

$2H = 5$

Solve for H

$H = \frac{5}{2}$

$H = 2.50$

3 0

3 years ago

) Find AD if BC = 13x + 279.<br>AD = 2x + 135, AC = 11x + 267,<br>and BD = 63.

Cloud [144]

Answer:

efe

Step-by-step explanation:

erw

6 0

3 years ago

Need help real quick!!!

ExtremeBDS [4]

Answer:

what help you needed. ??

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2 years ago

fred has a bad containing 2 red, 8 blue, 5 green, and 10 white marbles that are all the same size and shape. what is the probabi

Pepsi [2]

Answer:

50%

Step-by-step explanation:

There are a total of 20 marbles.

10/20 equal 50%

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3 years ago

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