All categories

3 years ago

Isabella buys a computer that is on sale for 30% off the original price. The original price is $216 more than the sale price.

Mathematics

1 answer:

kakasveta [241]3 years ago

7 0

Answer:

$720$

Step-by-step explanation:

Set the problem up as a proportion

$\frac{216}{x}= \frac{30}{100}$

cross multiply

$21600=30x$

divide both sides by 30

$720=x$

plz mark me brainliest. :)

You might be interested in

Survey math help please

marishachu [46]

75 females own a blue car out of 300 people. 75/300 x 100 = 25%

4 0

3 years ago

Read 2 more answers

Marco starts with a population of 10 bacteria that doubles every day for a number of days, d. He writes the expression 10(2d) to

riadik2000 [5.3K]

Answer:

Marco- 10 is the starting value of the population. 2 is the growth rate of "double each day" with d as an exponent.

Isabella- 1 is the starting population. 1+0.2=1.2 is the rate at which it grows each day.

Step-by-step explanation:

Marco's equation should be $10(2^{d})$ since the bacteria double each day. 10 is the starting value of the population. 2 is the growth rate of "double each day" with d as an exponent. This will double each day because:

Day 1 is $2^{1}=2$

Day 2 is $2^{2}=4$

Day 3 is $2^{3}=8$

Day 4 is $2^{4}=16$

You'll notice the value doubles each day.

Isabella has a different equation because her population increases by a percentage. We use the simple interest formula to calculate the bacteria's daily increase or interest.

1(1+0.2)d

1 is the starting population.

1+0.2=1.2 is the rate at which it grows each day.

3 0

4 years ago

Read 2 more answers

Use the first three triominoes to find the missing number in the fourth triomino.

Nonamiya [84]

Answer: 28

Since we know there is a pattern of 20, 22, 24, and 26, we can see that there is a difference between each of the numbers of +2. Therefore, 26 + 2 = 28

- Hope it helps!

4 0

3 years ago

For each of the geometric sequences, determine the common ratio. Sequence A has common ratio

klemol [59]

Answer:

Step-by-step explanation:

I did it

7 0

3 years ago

Read 2 more answers

Find each quotient using long division 676 ÷ 13 (need the full thing fast lol)

ra1l [238]