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andrey2020 [161]
3 years ago
11

Maria earned $126 in simple interest from her savings account. If she invested $450 for 7 years, what was the interest rate?

Mathematics
2 answers:
xeze [42]3 years ago
8 0
Answer is <span>4%

450 * 7 * i = 126
3150 i = 126
i = 126/3150
i = 0.04

0.04 = 4%

</span>
a_sh-v [17]3 years ago
6 0
4% will be the answer
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Mice21 [21]

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Step-by-step explanation:

If there are 30 new crayons, all you have to do is subtract the 24 new crayons Angie added, thus being six new crayons. Multiply this by 6 to get 36.

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17. A celebrity makes $0.05 for each like they get on
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its A

Step-by-step explanation:

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klasskru [66]

Answer:

look in the explanation, it is in there

Step-by-step explanation:

i don't know if you are distributing or just using PEMDAS .

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                      is what i got!

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6 0
3 years ago
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3 years ago
There are 162 magazines and books in a library. There are 54 more books
Strike441 [17]

Answer:

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Step-by-step explanation:

Let the number of magazines = m

Let the number of books = b

<u>Given the following data;</u>

Total number of m & b = 162

<em>Translating the word problem into an algebraic equation, we have;</em>

b = m + 54 ......equation 1

m + b = 162 ......equation 2

<em>Substituting equation "1" into equation "2" we have;</em>

m + m + 54 = 162

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2m = 162 - 54

2m = 108

m = \frac {108}{2}

m = 54

Now to find the number of books;

b = m + 54

Substituting the value of "m" into the equation, we have;

b = 54 + 54

<em>b = 108</em>

<em>Therefore, the total number of books in the library is 108 books. </em>

7 0
3 years ago
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