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Anon25 [30]
3 years ago
11

Help me with this please! Will mark brainliest!

Mathematics
2 answers:
Kazeer [188]3 years ago
6 0

Answer:

1)2500

2) 1500

3)2.5%

Step-by-step explanation:

1) the standard formula for interest is i=prt where  i= interest, p= principal and t=time

In the first scenario, everything but the principal is given so lets substitute the info into the equation:

75=p*0.03*1

75= 0.03p

75/0.03=p

2500=p

Same thing for second scenario, just different numbers

120=0.04*2*p

120=0.08p

1500=p

This time everything but the rate is given:

250=10000*1*r

250=10000r

Divide both sides by 10000

0.025=r

2.5%=rate(convert into percentage)

Hope this helps!

AVprozaik [17]3 years ago
3 0
The answer you are looking for is 2.5%
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