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bekas [8.4K]
4 years ago
5

How many solutions are there to the equation 8x - 7 = 2 (2x + 7) - 5

Mathematics
2 answers:
Liono4ka [1.6K]4 years ago
7 0
The answer would be x=4
igomit [66]4 years ago
3 0

Answer:

x=4

Step-by-step explanation:

8x - 7 =2(2x +7) - 5

8x - 7 =4x +14 - 5

8x - 7 =4x +9

8x - 4x =9 +7

4x =16

x=16 :4

x=4

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A 16-oz jar of spaghetti sauce cost $3.59. if the cost per ounce is the same, how much would a 40-oz jar cost?
mario62 [17]

Answer:

B.$8.98

Step-by-step explanation:

We need to determine the cost per ounce.  We divide the cost by the number of ounces

3.59/16 =.224375 per ounce

Take the price per ounce and multiply by the number of ounces to determine the price of the 40 ounce jar

.224375 * 40 =8.975

Rounding to the nearest cent

8.98 for a 40 ounce jar

4 0
4 years ago
karen's hobby is chemistry. for one experiment she used 3 liters of water and 3 empty beakers she poured 0.7 L into the frist be
Burka [1]

By subtracting the water poured into the first two beakers from the available water we conclude that the water left for the third beaker is 0.9 liters.

<h3>How to find the water left for the third beaker</h3>

In this question we know that Karen has 3 liters of water and poured 0.7 liters into the <em>first</em> beaker, 1.4 liters into the <em>second</em> beaker and we can determine the water left for the <em>third</em> beaker by subtracted the water poured into the <em>first two</em> beakers from the available water. The available volume is:

V = 3 L - 0.7 L - 1.4 L

V = 0.9 L

By subtracting the water poured into the first two beakers from the available water we conclude that the water left for the third beaker is 0.9 liters.

To learn more on subtractions: brainly.com/question/4319655

#SPJ1

5 0
2 years ago
Solve for x in the equation x^2 + 20x + 100 =36.
arsen [322]

Answer:

x = -16 or x = -4 ........

5 0
4 years ago
Read 2 more answers
A spinner that has 5 areas of equal size, blue, red, green, yellow, and purple, is spun 400 times. The results are shown in the
Gelneren [198K]

I think you forgot to link the table

3 0
4 years ago
GO DEEPER
irakobra [83]

Answer:

46

Step-by-step explanation:

6 0
4 years ago
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