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3 years ago

A friend tells you that her savings account doubled in 9 years. Use the Rule of 72 to estimate what the APR of her account was.

1 answer:

5 0

answer:The rule of 72 says that an amount will double when the product of the percentage and the number of years equals 72...so for 8 years, you would need to earn 9%

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Can someone please help me, I don’t get this

leonid [27]

Answer:

Sure Amaya , the grouping is the parenthesis, right?

Step-by-step explanation:

so just add up.. the things outside of the parenthesis

- $4^{2}$ * 4

so exponents come first in the order of what to do... right?

$4^{2}$ =16 okay , got that part, the next part is

16 * 4 = 64 okay got that part, now

- 64 is what is subtracted from the grouping , got it?

4 0

3 years ago

Can someone help me solve for X?

valentina_108 [34]

Answer:

Step-by-step explanation:

K=3x+8

Hope this helped mark me as brainiest

5 0

3 years ago

Read 2 more answers

Multiply the binomials (5x+3) And (2x+4)

Sav [38]

Answer:

(5x+3)(2x+4)=10x^2+26x+12

Step-by-step explanation:

You use FOIL (First, Outer, Inner Last)

First: 5x times 2x= 10x^2

Outer: 5x times 4= 20x

Inner: 3 times 2x= 6x

Last= 3 times 4

Combine 20x and 2x to get 26x

3 0

3 years ago

Write down the bearing direction of ES in angle.

gulaghasi [49]

Answer:

045°

Step-by-step explanation:

$135 - 90 = 45$

6 0

2 years ago

Right triangles 1, 2, 3 are given with all their angle measures

zlopas [31]

Answer:

6.4/7.7 is the ratio

Step-by-step explanation:

The bottom triangle matches the 50 40 90 angle, so the ratio of the triangle length is consistent

- Gage Millar, Algebra 2 tutor

6 0

3 years ago