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beks73 [17]
3 years ago
13

Please help!! Will give brainiest!1 Im so confused

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
5 0

Answer:

i dont know

Step-by-step explanation:

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15f-8f+13=55 solve for F there both the same number
julsineya [31]
15f -8f+ 13= 55
⇒ 7f+ 13= 55
⇒ 7f= 55- 13
⇒ 7f= 42
⇒ f= 42/7
⇒ f=6

Final answer: f=6~
8 0
2 years ago
Two girls aged 12 years and 15 years divide $72 in the ratio of their ages. How much does each girl receive?
nikdorinn [45]

Answer:

12 years = 16 USD

15 years = 20 USD  

Step-by-step explanation:

15 years =72:4= 18 we round to 20 for 15 years

12 years = 20+20 = 40  

72-40 = 32 : 2 = 16 USD for 12 years

7 0
3 years ago
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Select the correct answer. Simplify the expression below. 4x(3x − 7) − 19x2 A. -7x2 − 7 B. -35x2 C. -7x2 − 28x D. -31x2 − 28x
morpeh [17]

Answer:

C. -7x^2-28x

Step-by-step explanation:

The given expression is 4x(3x-7)-19x^2

We apply the distributive property to expand the parenthesis

12x^2-28x-19x^2

Regroup similar terms to get:

12x^2-19x^2-28x

Combine the similar terms to obtain:

-7x^2-28x

The correct option is C.

5 0
2 years ago
What happened at the end of the Constitutional Convention? (history)
Liono4ka [1.6K]
The answer is D:)
the reason why is because on September 17, 1787, the Constitution of the United States of America was signed by 38 of the 41 delegates present at the conclusion of the convention.
6 0
2 years ago
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3 years ago
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