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KIM [24]
2 years ago
12

3х – 8y = 19 3х + 5y = — 46

Mathematics
1 answer:
Vadim26 [7]2 years ago
4 0

Answer:

-5

Step-by-step explanation:

multiple the second equation by negative then subtract or add the equations and the answer will be negative 5

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(SAT Prep) An airplane has leveled off (is flying horizontally) at an altitude 12000 feet. When the airplane is at point P its p
serious [3.7K]

Answer:

m∠PRT = 114°

m∠T = 37°

m∠RPT = 29°

Step-by-step explanation:

This question is incomplete (without a picture) ; here is the picture attached.

In this picture, an airplane is at an altitude 12000 feet.

When the plane is at the point P, pilot can observe two towns at R and T in front of plane.

We have to find the measure of ∠PRT, ∠T and ∠RPT.

Form the figure attached segment PS is parallel to RT and PR is a transverse.

We know that internal angles formed on one side of the parallel lines by a transverse are supplementary.

Therefore, x + 66 = 180

x = 180 - 66 = 114°

∠PRT = x = 114°

m∠RPT = m∠SPR - m∠SPT

             = 66 - 37

             = 29°

Since m∠PRT + m∠T + m∠RPT = 180°

114 + ∠T + 29 = 180

143 + ∠T = 180

∠T = 180 - 143

∠T = 37°

8 0
3 years ago
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The measure of arc EF is —
Dimas [21]

30 plus EF = 180

Ef = 150

circumscribed angle plus the central angle is 180

7 0
3 years ago
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Would love it if someone helped with this question please...
nikklg [1K]

Answer:

$40.00

Step-by-step explanation:

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5 0
3 years ago
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The factory makes 400 cars per day. If the workday is eight hours long. What is the hourly rate at which car are produced
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Step-by-step explanation:

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delta math

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