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3 years ago

Solve for the unknown check your solution by substituting it in the original equation. -X+11=-2X-7

Mathematics

1 answer:

Debora [2.8K]3 years ago

8 0

Answer:

Step-by-step explanation:

-X+11=-2X-7

11=3X-7

18=3X

18/3= 6

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You have a 20 % total purchase coupon . You total is $134.22 if you use the coupon what does your total is $134.22 if you use th

Romashka-Z-Leto [24]

Answer:

$107.38

Step-by-step explanation:

FIRST WAY:

Since you have a 20% discount, that is equivalent to two-tenths of $134.22

Step 1: find the discount.

0.2 x 134.22 = 26.844 (round to 26.84)

Now that you have the discount, simply subtract that discount from your original price.

Step 2: find the final price.

$134.22 - $26.84 = $107.38

SECOND WAY:

A faster way to solve problems like this is to find the percentage of cash you are going to pay with the coupon. To do so, simply convert your percentage value to its corresponding decimal value relative to the original.

<em>Layman's terms: just subtract the 20% from 100% to get 80%.</em>

Step 1: find the percentage to be paid.

100% - 20% = 80% OR 1 - 0.2 = 0.8

Now that you have the percentage you need to pay, just multiply that percentage by the original amount.

Step 2: find the final payment.

$134.22 x 0.8 = $107.38

3 0

3 years ago

you can buy a 1.5 lbs bag of gummy bear for $4.35 or spend $5.30 for 2 lbs of gummy bears. Which of the bags is a better deal?

alukav5142 [94]

Answer:

The 2 pound bag of gummy bears

Step-by-step explanation:

You do 1.5/4.35 which = 2.9 the 2.9 is $2.90 per pound

Then, you do 5.3/2 which = 2.6 this 2.6 is $2.60 per pound

$2.60 < $2.90 there for the 2 pound bag of gummy bears is the better deal

3 0

3 years ago

Simplify.

eimsori [14]

25x-2+3(x-4)

25x-2+3x-12
-3x on both sides

22x-2=-12
+2 on both sides

22x= -10
Divide by 22 both sides

-10/22

Then you simply giving you

Answer: 5/11

4 0

3 years ago

Read 2 more answers

Ezra measured a swimming pool and made a scale drawing. He used the scale 9 millimeters = 1 meter. What is the scale factor of t

mr Goodwill [35]

1mm = .11m

You can get this by simplifying the numbers you already have

6 0

3 years ago

oel biked 9 miles east and then 12 miles north. If he biked back to his starting point using the most direct route, how many mil

kvasek [131]

Answer:

36 miles

Step-by-step explanation:

(Imagine a huge triangle on a perfectly open space-- not with streets or houses or cornfields.)

The dimensions of the two sides given are multiples of a classic Pythagorean Triple: 3, 4, 5. $3^{2} + 4^{2} = 5^{2}$

9 is 3x3, 12 is 3x4 so the remaining side would be 3x5 15

Add those 3 sides to get the total distance, 36 miles.

6 0

3 years ago

Solve for the unknown check your solution by substituting it in the original equation. -X+11=-2X-7​

Solve for the unknown check your solution by substituting it in the original equation. -X+11=-2X-7