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sergeinik [125]
3 years ago
14

Which equations could you use to solve the following problem? Fifty-six is 85% of what number? 56 = (0.85)w = = p = (0.85)56

Mathematics
1 answer:
Sidana [21]3 years ago
6 0

Answer:

56 = (0.85)w

Step-by-step explanation:

"is" translates to "=".

"of" translates to "×".

We can let "what number" translate to "w".

Then ...

56 is 85% of what number . . . . translates to ...

56 = 0.85×w

_____

Of course, you know that 85% = 85/100 = 0.85.

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I need help solving this problem
Elena L [17]
Use the given values in the compound interest formula to solve for time, n.

A is the final amount of money, $2800
P is the initial or starting amount $1900
i is the interest rate as a decimal 0.025
n is time in years since it annual.

2800 = 1900(1 + 0.025)^n

2800 = 1900(1.025)^n

2800/1900 = (1.025)^n

28/19 = (1.025)^n

take the natural log of both sides to solve for exponent.

ln(28/19) = ln(1.025^n)

power rule of logarithmic moves exponent

ln(28/19) = n*ln(1.025)

ln(28/19) / ln(1.025) = n

put into a calculator

15.7 years = n
4 0
3 years ago
What is the value of p if the expression 4(n+7) is equivalent to (n+p)4?
nikitadnepr [17]

Answer:

p = 7

Step-by-step explanation:

set the expressions = to each other

4(n+7) = 4(n+p)

distribute the 4 on both sides(multiplying the numbers on the inside)

4n+28 = 4n+4p

subtract the 4n from the right and left

28 = 4p

divide by 4

p = 7

3 0
3 years ago
Write the correct letter in the blank line next to the fraction
MrMuchimi

Answer:

7/8 = f

1/4 = a

5/8 = d

3/4 = e

1/8 = a

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Whats the GCF of 38m and 26m sorry I suck at math:)
pishuonlain [190]
I think 2 is the GCF of 28 and 26, hope this helps

3 0
3 years ago
Subtract (4x2 - x + 6) from (3x2 + 5x - 8).
bearhunter [10]

Step-by-step explanation:

(4x^2-x+6)-(3x^2+5x-8)=4x^2-x+6-3x^2-5x+8

By simplifying the right side of the equation, we come up with

x^2+6x-14, or D

5 0
3 years ago
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