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FromTheMoon [43]
2 years ago
10

2x + 3y = -5 y = 3x - 9 Use substitution to solve the system.

Mathematics
1 answer:
goblinko [34]2 years ago
7 0
(2,-3). solve for the first variable in one of the equations, then substitute the result into the other equation
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4x - 2 (x-2) = -4 + 5x -13
kolezko [41]

Answer:

x = 7

Step-by-step explanation:

Given

4x - 2(x - 2) = - 4 + 5x - 13 ← distribute left side and simplify

4x - 2x + 4 = 5x - 17

2x + 4 = 5x - 17 ( subtract 5x from both sides )

- 3x + 4 = - 17 ( subtract 4 from both sides )

- 3x = - 21 ( divide both sides by - 3 )

x = 7

8 0
2 years ago
Liam biked for 3 hours at a speed of 8 mph and then walked the remaining part of his way at a speed of 3 mph. If the total dista
Andreas93 [3]

Answer:

2 hours

Step-by-step explanation:

First we need to know the distance Liam travelled using the bike.

If his speed was 8 mph and he travelled 3 hours, the distance travelled by bike is:

d = 8 * 3 = 24 miles

The total distance is 30 miles, so the remaining is:

30 - 24 = 6 miles

He travelled 6 miles with the speed of 3 mph, so the time walking is:

time = 6 / 3 = 2 hours

5 0
3 years ago
if Sandy can afford car payments of $140/month for 4 years what is the price of a car that she can afford now?
Galina-37 [17]
6720 would be the correct answer

5 0
2 years ago
A gate is 3 feet tall and casts a shadow 5 feet long. At the same time, a nearby building is 27 ft tall. If this is to be a prop
madam [21]

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the length of the shadow is 45 feet long

Step-by-step explanation:

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3 years ago
What is the area of the shape?
gladu [14]

Answer:Area is the size of a surface

Step-by-step explanation:

6 0
3 years ago
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