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Oxana [17]
3 years ago
10

Farah's brother is 7 years less than twice Farah's age, f. The sum of Farah's age and

Mathematics
1 answer:
Olin [163]3 years ago
4 0

Answer:

f+(2f-7)=41

Step-by-step explanation:

Farah's age is represented by the first f and her brother's age is represented by the (2f-7) and the sum of their ages is 41, therefore this is the correct answer

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The answer to this question is: 47
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1. Rewrite 10^32 • 10^6 using a single exponent
OLga [1]

Answer:

1. 10^(38)

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Step-by-step explanation:

For every time that we multiply powers with the same base we maintain the base and sum the powers. Therefore we have:

1. (10^32)*(10^6)

10^(32 + 6)

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2. If each of the 10^6 programmers make 10^5 then the total money they make together is the product of the number of programs with the sallary each makes. We have:

total = (10^6)*(10^5)

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2 years ago
Perform the indicated operation. 61/2 · 4/5? a.5 1/5 b.6 2/5 c.3 1/5 d.4 2/5
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Answer:

5  1/5

Step-by-step explanation:

6 1/2 *4/5

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( 2*6 +1)/2 *4/5

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52/ 10

50/10 + 2/10

5 +1/5

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5 0
3 years ago
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Dawn has been using two bank accounts to save money for a car. the difference between account 1 and account 2 is $100. if she us
asambeis [7]
1) name the variables:

 - amount in account 1 "a"
 - amount in account 2 "b"

2) trtanslate the statements into equations:

<span>- the difference between account 1 and account 2 is $100.

=> a - b = 100

-  if she uses 3/8 of account 1 and 7/8 of account 2, Dawn will have a down payment of $2,000.

=> (3/8)a + (7/8)b = 2000

3) solve the system of equations

(1) a - b = 100
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Steps:

- multiply equation (1) by 7 and equaton (2) by 8

=>

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(2) 3a + 7b = 16,000

- add the two equations

=>

7a + 3a - 7b + 7b = 700 + 16,000

- combine like terms:

10a = 16,700

- divide by 10:

a = 16,700 / 10 = 1670

- use equation (1) to find b:

a - b = 100 => b = a - 100 = 1670 - 100 = 1570

Answer: Dawn has $ 1670 in account 1 and $ 1570 in account 2. </span>
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3 years ago
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Use place value to find the producy ok 5×70=5×_tens
klasskru [66]
I think the answer is 7 tens. I hope this helps, but I am pretty sure it is wrong maybe
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