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Nadya [2.5K]
3 years ago
15

Solve the system by substitution​

Mathematics
1 answer:
Alexxandr [17]3 years ago
5 0
1) Solve one of the equations for either variable.

2) Substitute the expression from Step 1 into the other equation.

3) Solve the resulting equation.

4) Substitute the solution in Step 3 into one of the original equations to find the other variable.

5) Write the solution as an ordered pair.
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The ratio of angle measures is 1:2:2. Classify the triangle by its angle measures. obtuse triangle right triangle equiangular tr
lyudmila [28]

Answer:

Acute Triangle

Step-by-step explanation:

<u><em>Angles in a triangle add up to 180 degrees.</em></u>

So,

x+2x+2x = 180

=> 5x = 180

Dividing both sides by 5

=> x = 36

<u><em>So, The lengths are:</em></u>

=> 36

=> 72

=> 72

<em><u>Since all the angles are less than 90 degrees, It is an acute triangle.</u></em>

5 0
4 years ago
Eliott is 63 inches tall, which is 9 inches taller than his cousin, Jackson. White and solve an addition equation to find Jackso
marishachu [46]

Answer:

To find his height u need to subtract 63-9

Step-by-step explanation:

63 - 9 = 54

7 0
3 years ago
Jim provides photos for two online sites: site A and site B. Site A pays $0.85 for every photo Jim provides. The amount in dolla
yarga [219]
We can use the same equation to figure out with only substituting the amount he was paid per photo.

Site A    y = $0.85x      =  $0.85(5)  =  $4.25
Site B    y = $0.40x      =  $0.40(5)  =  $2.00

We can see that Jim was paid $2.25 more at site A than Site B.
6 0
3 years ago
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What is the value of c? 14=2c−6+3c Enter your answer in the box.
KengaRu [80]
2c+3c that would be 5c
add 6 to both sides and you'll get 20
divide 20 by 5
and c=4
8 0
3 years ago
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Which expression is equivalent to 3(m − 3) + 4?<br><br> 3m + 1<br> 3m − 5<br> 3m + 13<br> 3m − 3
Volgvan

Answer:

3m - 5

Step-by-step explanation:

3(m - 3) + 4           Distribute the 3

3m - 9 + 4             Simplify

3m - 5

6 0
3 years ago
Read 2 more answers
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