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FinnZ [79.3K]
1 year ago
11

Rebecca earned $115 in simple interest for 8 months at an annual interest rate of 3%. How much money did she start with in her a

ccount?
Mathematics
2 answers:
nata0808 [166]1 year ago
8 0

Answer:

$5750

Step-by-step explanation:

For simple interest,

I = prt

115 = p × 0.03 × 8/12

p = 5750

dlinn [17]1 year ago
8 0
Yes like he said the answer is 5750$
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At Southside Middle School, 30% of the students play an instrument. There are 310 students. How many students play an instrument
rodikova [14]

93 students play an instrument because you would take 310 (the total amount of students) and multiply it by 0.3 (the thirty percent) and get 93

5 0
3 years ago
If B is the midpoint of AC, AB = 8x + 5, and BC = 5x2 - 16, then find x and AC
Murljashka [212]

Answer:

Step-by-step explanation:

AB = 8x + 5

BC = 5x² - 16

5x² -  16 = 8x + 5

5x² - 8x - 21 = 0

Quadratic formula

x = [8 ± √(8² – 4·5(-21))] / [2·5]

 = [8 ± √484] / 10

 = [8 ± 22] /10

 = -1.4, 3

-1.4 is an extraneous solution.

x = 3

AB = 8x+5 = 29

AC = 58

5 0
2 years ago
HELP MEH<br> I can't figure this out. Please explain
vova2212 [387]

Answer:

x ≈ 33.0

Step-by-step explanation:

The third angle in the triangle is

180° - 70° - 76° = 180° - 146° = 34°

Using the Sine rule in the triangle

\frac{x}{sin76} = \frac{19}{sin34} ( cross- multiply )

x × sin34° = 19 × sin76° ( divide both sides by sin34° )

x = \frac{19sin76}{sin34} ≈ 33.0 ( to the nearest tenth )

7 0
2 years ago
Read 2 more answers
The measures of the angles of A ABC are given by the expressions in the table.
Westkost [7]

First You add all given angles up to equal 180 to give you x then you plug x into equations

A= 125 degrees

C= 35 degrees

4 0
3 years ago
Richard practiced piano each of 3 piano solos for 5/12 hour. How long did he practice in all? Please show how to figure
Aleonysh [2.5K]
3 piano solos....each is 5/12 hr....
u can either add : 5/12 + 5/12 + 5/12 = 15/12 = 1 1/4 hrs

or u could multiply : 3 * 5/12 = 15/12 = 1 1/4 hs

either way....same answer
6 0
2 years ago
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