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emmasim [6.3K]
3 years ago
9

Find the measure of angle A

Mathematics
1 answer:
Maurinko [17]3 years ago
5 0

Answer:

Angle A= 30

Step-by-step explanation:

A triangle has to equal 180 degrees so the first thing you have to do is subtract 180-70. You get 110 so the other two angles in the triangle have to equal 110.

Now you can solve the expression x+40+x+90=110

First combine like terms  2x+130=110

Then subtract 130 from both sides  2x=-20

Then divide by 2 x=-10

Then solve for a -10+40=30

So angle A = 30

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3 years ago
2. A student on the track team runs 45 minutes each day as a part of her training. She
fomenos

Answer:

D

Step-by-step explanation:

The basic equation to solve this would be D = RT, which is

D is Distance

R is Rate (speed)

T is time

To find total distance D, we can find individual distances for two legs of the whole.

First Leg:

R = 8

T = a

D = 8a

Second Leg:

R = 7.5

T = b

D = 7.5b

Total distance D is:

D = 8a + 7.5b

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D = 8a + 7.5b

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