3 years ago

Need help on number 4

Mathematics

1 answer:

Vaselesa [24]3 years ago

8 0

<span>There are 2 3/4 boxes and 1/2 pies in each box how many pies are there? </span>

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6,000 dollars is invested in two different accounts earning 3% and 5% interest. At the end of one year, the two accounts earned

kap26 [50]

Answer:

$2000

Step-by-step explanation:

6,000 dollars is invested in two different accounts earning 3% and 5% interest.

Let x be the amount invested in account earning 3% interest

So, 6000-x is the amount invested in account earning 5% interest

$S.I. =\frac{P\times R\times T}{100}$

So, Simple interest for account earning 3% interest

$S.I. =\frac{x \times 3 \times 1}{100}$

$S.I. =0.03x$

Simple interest for account earning 5% interest

$S.I. =\frac{(6000-x) \times 5 \times 1}{100}$

$S.I. =0.05(6000-x)$

$S.I. =300-0.05x$

Since we are given that the two accounts earned $220 in interest

So, $0.03x+300-0.05x=220$

$−0.02x+300=220$

$80=0.02x$

$\frac{80}{0.02}=x$

$4000=x$

So, 4000 was invested at 3%

(6000-x)=6000-4000=2000 was invested at 5%

Hence 2000 was invested at 5%

8 0

4 years ago

A roller coaster is at the top of a 72m hill and weighs 966N. At the top of the hill the coaster car has ___________________ ene

igomit [66]

Answer:

Potential

Step-by-step explanation:

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3 years ago

What is the answer to 16x + 10-10x=2x+14

dem82 [27]

Answer:

Step-by-step explanation:

6x+10=2x+14

6x-2x=14-10

4x=4

x=1

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3 years ago

Where does the oxygen that is used during cellular respiration in animals

Softa [21]

Answer:

A. Air that is breathed in :)

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3 years ago

How many ways can first, second, and third place be awarded in a race of 20 people?

Volgvan

That would be 20 x 19 x 18 which equals 6840.
After first place is chosen, 19 spots left and so on.
The answer is 6840 ways.

3 0

3 years ago