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3 years ago

Solve for x 13x + 7 = 5x - 20

Mathematics

2 answers:

ivanzaharov [21]3 years ago

8 0

Answer:

13x + 7 = 5x - 20

Step-by-step explanation:

SOLVE for X

13x + 7 = 5x - 20

-------------------------

-5x -7

------------------------

8x=-27

x= -3.375 or -27/8

Sliva [168]3 years ago

8 0

Answer:

x = -27/8

Step-by-step explanation:

combine the x terms. To do this, subtract 5x from both sides. We get:

8x + 7 = -20.

Next, subtract 7 from both sides, obtaining:

8x = -27, or x = -27/8

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3 years ago

The volume of a cylinder can be expressed as V=πr2h, where r is the radius, and h is the height of the cylinder.

olga_2 [115]

Note: You missed to add the answer choices, so I am solving the overall procedure to determine the radius of the cylinder so that you could easily figure out the right choice.

Answer:

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Step-by-step explanation:

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here

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3 years ago

Lincoln Middle School plans to collect more than 2000 cans of food in a food drive. So far, 668 cans have been collected. Write

Schach [20]

Let x be the unknown number.

7x + 668 < 2000 => 7x plus 668 is less than 2000

where:
7x => x represents the number of cans to be collected in 7 days
668 is the number of cans already collected.
2000 is the target number of cans.

7x + 668 < 2000
 - 668 -668
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÷7 ÷7
x < 190.30
or
x < 190

To check:

7x + 668 < 2000
7(190) + 668 < 2000
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3 years ago