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4 years ago

4.2(3.9r – 5.9s) + 7.9s – 9.53r

Mathematics

1 answer:

nexus9112 [7]4 years ago

8 0

Answer:

D. 6.85r – 16.88s

Step-by-step explanation:

Use the distributive property to eliminate parentheses, then collect terms.

4.2(3.9r -5.9s) +7.9s -9.53r

= 16.38r -24.78s +7.9s -9.53r

= (16.38 -9.53)r +(-24.78 +7.9)s

= 6.85r -16.88s

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elixir [45]

Answer

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Explanation

A = P(1 - 14/100)ⁿ

A = 16,000(1-0.14)¹¹

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3 years ago

usain bolt, a Jamaica retired sprinter and world record holder in the 100 meters, 200 meters and 4 × 100 meters relay, has an av

Novosadov [1.4K]

For this case we have the following conversion of units:

$1mi = 1609m$

$1h = 3600s$

Thus, applying the conversion of units we have:

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Then, the distance traveled for 5 seconds is given by:

$d = (10.4) (5)$

$d = 52m$

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he has completed 52 meters of the 80-meter race

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3 years ago

If Tina traveled 1,000 miles in 5 hours on her plane flight to her vacation destination, how fast was the plane traveling? A.200

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OK so for this it will be simple
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3 years ago

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Step-by-step explanation:

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3 years ago

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Michael obtains a 30/8 balloon mortgage to finance $425,500 at 6.55%. How much principal and interest will he have already paid

STALIN [3.7K]

Answer:

$259 532

Step-by-step explanation:

Step 1. Calculate the monthly payments on a 30-year loan.

The formula for the monthly payment (P) on a loan of A dollars that is paid back in equal monthly payments over n months, at an annual interest rate

of r % is

$P = A(\frac{r}{1-(1+r)^{-n}})$

Data:

We must express the interest rate on a monthly basis.

i = 6.55 %/yr = 0.545 83 %/mo = 0.005 4583

A = $425 500

n = 360 mo

Calculation:

$P = 425 500(\frac{0.005 4853}{1-(1+0.005 4583)^{-360}})$

$P = \frac{2332.22}{{1- {1.005 4583}}^{-360}}$

$P = \frac{2332.52}{1 – 0.140907}$

$P = \frac{2332.52}{0.859 093}$

P = $2703.46

B. Total Payment (T) after 8 years

T = nP

T = 96 × 2703.46

T = $259 532

Michael will have paid $259 532 at the end of eight years.

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3 years ago