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scoundrel [369]
2 years ago
13

Write two number that multiply to the value on top and add to the value on bottom

Mathematics
1 answer:
spin [16.1K]2 years ago
6 0

Answer:

-10 and 5

Step-by-step explanation:

because -10 x 5 = -50 and -10 + 5 = -5!

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What is the perimeter
ella [17]

Answer: The continuous line forming the boundary of a closed geometric figure.

Step-by-step explanation:

4 0
3 years ago
A 55% decrease followed by a 25% increase​
Lina20 [59]

Let's say the item starts off at $100.

A 55% decrease means 100%-55% = 45% of the value is still there. The item is now worth 0.45*100 = 45 dollars.

Now increase this by 25%. The long way to do this is to add 25% of 45 onto 45

(25% of 45) + (45) = 0.25*45+45 = 11.25+45 = 56.25

Or, we can multiply 45 by 1.25 since the multiplier 1.25 represents a 25% increase

1.25*45 = 56.25

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

The item was $100, it drops to $45 after the 55% decrease, then it is $56.25 after the 25% increase.

Let's compute the percent difference

A = 100 = old value

B = 56.25 = new value

C = percent difference

C = 100*(B-A)/A

C = 100*(56.25-100)/100

C = -43.75%

The negative C value indicates a percent decrease.

So combining a 55% decrease and a 25% increase leads to an overall decrease of 43.75%

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A shortcut is to multiply 0.45 and 1.25 to get 0.5625

Then subtract this from 1 to get 1-0.5625 = 0.4375

This is another way to see we have a 43.75% decrease.

8 0
4 years ago
Helpp picture about
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Answer:

Option A, C, and E

Step-by-step explanation:

7 to the fourth power is the same as 7 times 7 times 7 times 7.

7^4 is the same thing as 7 to the fourth power, just rewritten.

I hope this helped, please give brainliest if this is correct! Thank you!

8 0
3 years ago
Complete the paragraph to show how you can solve problems involving equivalent expressions.
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Answer:

Step-by-step explanation:

Model the expressions

with bar models or algebra tiles to determine if the expressions are

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You can also write equivalent expressions using

properties of operations

and order of operations.

8 0
3 years ago
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Step-by-step explanation:

all angles of a triangle sum to 180

180 = 15x + 24x +21x

180=60x

solve for x

then substitute that for 24(x) to get the angle

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3 years ago
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