3 years ago

I need help with this this is the only question i have right now good luck.

Mathematics

1 answer:

dangina [55]3 years ago

8 0

The mistake is that -7^2 is 49, not -49

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The product of 2 and the second power of y

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Answer:

(2)y²

Step-by-step explanation:

2 x y²

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3 years ago

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The sum of two numbers is 35.

LUCKY_DIMON [66]

Answer:

Larger number(x)=20

Step-by-step explanation:

They're saying that the larger number 3 times is EQUAL(the same) to 4 times the smaller number.

The smallest number=35-x.

The larger number= x.

3 times the larger number=3x

4 times the smaller number=4(35-x)

Now, input it into an equation and solve:

3x=4(35-x) Distribute by multiplying 4 with 35 and x.

3x+4x=140-4x+4x Get 140 by itself by adding 4x.

7x/7=140/7 Divide.

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Since x= the larger number, x=20.

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3 years ago

What is -212+(-102)?

hram777 [196]

Answer:

-212+(-102) = -212-102

= -314

Hope this helps!

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Louis is playing a video game. He begins with an initial score of 300 points but loses 120 points throughout the game. He repres

elixir [45]

Answer:

300 + (-)120

Step-by-step explanation:

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3 years ago

Stephanie had a total of 80 pieces of $ 2 and $ 10 notes. After spending 2/5 of her $ 2 notes and 8 pieces of her $ 10 notes, sh

Ghella [55]

Answer:

$440

Step-by-step explanation:

notes $2 - n

notes $10 - m

n + m = 80 ----------> m = 80 - n

1 - 2/5 = 3/5

$\frac{3}{5} * n = m - 8$

$\frac{3}{5} * n = 80 - n - 8 \\\\\frac{3}{5} * n + n = 72\\\\\frac{8}{5} * n = 72\\n = 45 \\m = 35\\$

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3 years ago