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Anettt [7]
3 years ago
14

What is the value of x in the following equation? 2 (x - 4) + 15 = 21

Mathematics
1 answer:
viktelen [127]3 years ago
5 0
The answer would be x=7.
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What is the value of x?
djverab [1.8K]

Answer:

x = 55°

Step-by-step explanation:

Hello!

The sum of angles in a triangle is 180°.

To solve for x, we have to subtract the given angles from 180°.

<h3>Solve for x</h3>
  • 180° = ∠1 + ∠2 + ∠x
  • 180° = 75° + 50° + x°
  • 180° - 75° - 50° = x°
  • 55° = x°

The value of x is 55°.

6 0
2 years ago
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At a rat of 64 kilometers per hour, how far will a car travel in 7 1/2 hours?_______
Snowcat [4.5K]

We use the formula d = s*t where d is distance, s is speed and t is time.

d = 64km*7.5

d = 480km

Therefore, a car would tracel 480 km.

5 0
3 years ago
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Karen karlin bought some large frames for $15 each and some small frames for $8 each at a closeout sale. if she bought 22 frames
BaLLatris [955]

small frames ($8): s

large frames ($15): L


Cost:        8s + 15L = 239   ⇒ 1(8s + 15L = 239)   ⇒    8s + 15L = 239  

Quantity:   s  +   L   = 22   ⇒  -8( s  +   L   = 22)   ⇒  <u> -8s   -8 L  = -176 </u>

                                                                                               7L  = 63

                                                                                                  L = 9

Quantity:   s + L = 22 ⇒   s + (9) = 22   ⇒   s = 13

Answer: 13 small frames, 9 Large frames

7 0
3 years ago
Read 2 more answers
Brett lives 3/10 mile from school. If he rides his bike to and from school each day,Monday to Friday, how many miles does he rid
evablogger [386]
Two trips a day for 5 days = 10 trips
(3/10)(10)= 3 miles
7 0
3 years ago
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Firemen are using a 60-foot ladder to reach
Katarina [22]

Answer:

  1. This might help a liitle its kind of like the question you are asking.
  2. You might not want to give people 5 points for a long question because most of them might not awnser.

Step-by-step explanation:

Download pdf
5 0
3 years ago
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