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3 years ago

Number 13 please.it’s the answe.r

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

3 0

The answer is there what u need help with?

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You invested $11,000 in two accounts paying 3% and 7% annual interest, respectively. If the total interest earned for the year w

Trava [24]

Answer:

I invested $ 10,000 at 7% per year, and $ 1,000 at 3% per year.

Step-by-step explanation:

Given that I invested $ 11,000 in two accounts paying 3% and 7% annual interest, respectively, if the total interest earned for the year was $ 730, to determine how much was invested at each rate, the following calculation must be performed:

5,000 x 0.07 + 6,000 x 0.03 = 530

8,000 x 0.07 + 3,000 x 0.03 = 650

10,000 x 0.07 + 1,000 x 0.03 = 730

Therefore, I invested $ 10,000 at 7% per year, and $ 1,000 at 3% per year.

6 0

3 years ago

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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!<br><br> Factor.

AURORKA [14]

$20xy-4y+35x-7=4y(5x-1)+7(5x-1)=(5x-1)(4y+7)$

7 0

4 years ago

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How do you say 3 - (-4) as an equivalent sum

jeyben [28]

When you have minus negative it is the same result as plus positive, so 3+4 is what you're looking for

6 0

3 years ago

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ANYONE HELP NEED DONE NOW ASAP

kap26 [50]

Inflation at a constant rate can be solved using the compound interest formula:

present value, P = 2.80
inflation rate, i = 2.8% = 0.028
period, n = 7 (years)

Value in 7 years,
future value
= P(1+i)^n
= 2.8(1.028)^7
= 3.3971
= 3.40 (to the nearest cent)

4 0

3 years ago

A standard number cube is rolled 288 times. Predict how many times a 3 or a 5 will be the result.

Anvisha [2.4K]

The events of rolling a 3 or a 5 are disjoint, so $\mathbb P\bigg((X=3)\cup(X=5)\bigg)=\mathbb P(X=3)+\mathbb P(X=5)$ .

Each face has a $\dfrac16$ probability of occurring, so the event of interest occurs with probability $\dfrac16+\dfrac16=\dfrac13$ . The number of times a 3 or 5 is rolled across 288 trials has a binomial distribution, $\mathcal B\left(288,\dfrac13\right)$ .

Recall that the expected value of a binomial distribution $\mathcal B(n,p)$ is $np$ . So in this experiment, we should expect to witness approximately $\dfrac{288}3=96$ instances of rolling a 3 or a 5.

5 0

3 years ago