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Zanzabum
3 years ago
10

16 POINTS

Mathematics
1 answer:
Marta_Voda [28]3 years ago
8 0
Solve the following system using elimination:
{7 x + 2 y = -19 | (equation 1)
{2 y - x = 21 | (equation 2)

Add 1/7 × (equation 1) to equation 2:
{7 x + 2 y = -19 | (equation 1)
{0 x+(16 y)/7 = 128/7 | (equation 2)

Multiply equation 2 by 7/16:
{7 x + 2 y = -19 | (equation 1)
{0 x+y = 8 | (equation 2)

Subtract 2 × (equation 2) from equation 1:
{7 x+0 y = -35 | (equation 1)
{0 x+y = 8 | (equation 2)

Divide equation 1 by 7:
{x+0 y = -5 | (equation 1)
{0 x+y = 8 | (equation 2)

Collect results:
Answer: {x = -5, y = 8
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If the area of the following parallelogram is 135 square feet, what is the length of the base?
sleet_krkn [62]

Answer:

9ft

Step-by-step explanation:

The area is 135ft and the formula for area is length x width.

on the image it shows the height is 5yds and we want feet since that's that the area is in. a yard = 3 feet so its 3 x 5 = 15.

since the formula to find area is multiplication, use division to find a number in the equation. so

135 divided by 15 = 9.

The length of the base is 9ft.

7 0
2 years ago
What is the volume of the isosceles trapezoidal prism?
MAVERICK [17]

Answer:

316.25

I hope I Got The Right Answer

8 0
3 years ago
Plane RTX and plane TUX intersect at what figure
Alina [70]

Answer:

Line TX or XT

Step-by-step explanation:

Planes always intersect in a line.

8 0
3 years ago
A manufacturing company produces x units this week and wants to increase its weekly output by 135 units by next week. The compan
masya89 [10]

Answer:

x + 135 = 1450

Step-by-step explanation:

It says that they are trying to increase the output by 135 so you have the variable to show how much they have to make to reach there goal of 1450 next week

I hope this helped you!

4 0
3 years ago
Guys could you please help me? i will give brainliest
DedPeter [7]

Answer:

Well I don't know the choices but if there is a 7 in the hundreds place like 1,700 then it is correct.

Step-by-step explanation:

This is the answer because 70 times 10 equals 700.

3 0
3 years ago
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