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3 years ago

PLS ANSWER MY QUESTION WITH AN EXPLANATION NOT JUST AN ANSWER

Mathematics

1 answer:

masha68 [24]3 years ago

3 0

Step-by-step explanation:

Perimeter is the sum of all the outside edges, so for a rectangle the perimeter (P) is (length + length + width + width).

P = length + length + width + width

P = 2x + 6 + 2x + 6 + x + x

P = 6x + 6

So the perimeter of the rectangle is 6x+6

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Four friends want to take a vacation together, so each one gets a part-time job. Each person has 8 weeks to save $720 for the va

e-lub [12.9K]

You can use the fact that summing something P times is equal to multiplying that thing with P.

Those who could save the needed amount were:

Option A: A and C

<h3>How to add something P times?</h3>

Let you have to add a value y p times. Then you write it as:

$y + y + ... + y \text{\: (P times)}\\= y \times P$

<h3>How to calculate how much each friend earned?</h3>

checking total money each friend earned:

Friend A : worked 13 hours per week at $6.95/hour rate.

Since in 1 week, A works 13 hour, thus, in 8 weeks, he works

$13 \times 8 = 184 \: \rm hours$

Each hour he earns $6.95, thus, for 184 hours, he will earn

$6.95 + 6.95 + ... + 6.95 \text{\:(184 times)}\\= 6.95 \times 184 = \$1278.8$

Similarly,

Friend B: worked 15 hours per work at $5.85/hour rate

B earned $15 \times 8 \times 5.85 = \$702$

Friend C: worked 18 hours per work at $5.25/hour rate

B earned $18 \times 8 \times 5.25 = \$756$

Friend D: worked 11 hours per work at $7.80/hour rate

B earned $11 \times 8 \times 7.8 = \$686.4$

Only friend A and friend C could earn more than or equal to $750

Thus,

Those who could save the needed amount were:

Option A: A and C

Learn more about multiplication here:

brainly.com/question/520497

8 0

2 years ago

Read 2 more answers

You take out a student loan for $80,000 with 2.75% annual interest to pay for your first year of college. This loan will cover a

yKpoI14uk [10]

Exponential growth equation would be

Amount= 80,000 (1+2.75/100) ⁴

At the end of 4 years I would have to repay an amount of $ 89,169.70

Step-by-step explanation:

Since, the amount is loaned it would vary exponentially i.e. in a compounding manner.

We know that for compound interest, the equation is written as-

Amount= principal(1+r/100) ˣ

Where r- rate of interest which is 2.75% annually

And x= time period= 4 years as in the question

Principal= $ 80,000

Therefore, Equation becomes-

Amount= 80,000(1+2.75/100) ⁴

On solving this Amount would equal $ 89,169.70

Hence, at the end of 4 years I would have to repay an amount of $ 89,169.70.

6 0

3 years ago

How many miles can you drive with 13.2 gallons of gasoline

Sergio [31]

286.44 I multiplied the numbers together

6 0

3 years ago

Read 2 more answers

PLEASE HELP<br> Will give brainliest and 5.0 rating xx

OLEGan [10]

Answer:

-4 , -1

Step-by-step explanation:

( -4 is the X- axis [ the horizontal line] and 1 is the y-axis [the vertical line] ) move ur finger to -4 on the left and go up to 1. Now move ur finger down 2 times . ur finger will be on -4 which is the x- axis and -1 for the y - axis

7 0

3 years ago

Determine which method would be more efficient for solving: Rewriting and using the distributive property or dividing. Solve eac

liq [111]

Answer:

A. x = 3.03

B. x = 4/3

Step-by-step explanation:

A. 2000 (x-0.03) = 6000 is quickly simplified byu dividing both sides by 2000:

(x - 0.03) = 3. Removing the parentheses, we get: x = -0.03 = 3, or x = 3.03.

B. The distributive property is the faster method here. We determine that the LCD is 12 and multiply both sides of this equation 1/4 (4+x) = 4/3 by 12:

3(4 + x) = 16

and then carry out the indicated multiplication: 12 + 3x = 16, or

3x = 4, or x = 4/3

7 0

3 years ago