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2 years ago

8x + 12 = 4r - 16 find r

Mathematics

1 answer:

Luda [366]2 years ago

8 0

Answer:

r = 2x + 7

Step-by-step explanation:

get r on one side

8x + 12 + 16 = 4r

divide both sides by 4 to get r by itself

8x/4 + 12/4 + 16/4 = 4r/4

2x + 3 + 4 = r

2x + 7 = r

r = 2x + 7

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Kayla needs $14,000 worth of new equipment for his shop. He can borrow this money at a discount rate of 10% for a year.

arlik [135]

Answer:

$15400

Step-by-step explanation:

Principle amount, P = $14000

Time, T = 1 year

Rate of interest, R = 10%

We know that maturity amount,

$A = P\left (1+\frac{R}{100} \right )^{n}$

where n is number of years

$A = P\left (1+\frac{R}{100} \right )^{n}$

$A = 14000\left (1+\frac{10}{100}\right )^{1}$

$A = 14000\left (1+\frac{1}{10}\right )$

$A = 14000\left (\frac{11}{10}\right )$

$A = 15400$

The maturity amount is $15400

6 0

2 years ago

2. A certain TV can be purchased from the manufacturer for $160. A certain online retailer has a standard markup of 30%, and a c

Vanyuwa [196]

Price, when purchased online: 1.30($160)
Price, when purchased at superstore: 1.40($160)

Difference in prices: 1.40($160) - 1.30($160) = 0.10($160) = $16

A higher markup brings a higher retail price.

8 0

3 years ago

Pls help :(<br><br>read and answer the question

andrew11 [14]

Answer: Your answer should be C) 171! Hope this helps you!

Step-by-step explanation:

3 0

3 years ago

What is 3(5x^2-9x) evaluated for x=-3

Studentka2010 [4]

Answer:

216

Step-by-step explanation:

put -3 where x is

3 ( 5 -3^2 - 9(-3) )

3 ( 45 + 27 )

3 (72)

216

4 0

2 years ago

Read 2 more answers

Renaldo will write 3/20 as a decimal. Which of the following methods should he use?

makvit [3.9K]

ANSWER

1. Multiply the fraction by 5/5 to get a denominator of 100 and then write the numerator as hundredths using a decimal point.

EXPLANATION

Renaldo wants to write

$\frac{3}{20}$

as a decimal.

He needs a denominator of 100, so he can multiply by

$\frac{5}{5}$

to obtain:

$\frac{3}{20} = \frac{3 \times 5}{20 \times 5}$

This will be

$= \frac{15}{100}$

He can now obtain the decimal equivalent as

$= 0.15$

The correct choice is option 1.

3 0

3 years ago

Read 2 more answers