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34kurt
3 years ago
8

The measure of the 3 angles in a triangle are (4x) degrees,(3x-3) degrees, and (5x+3)degrees. Please write an equation, solve fo

r x, and determine the measure of each angle. Please show work and thanks for helping

Mathematics
1 answer:
spin [16.1K]3 years ago
8 0
This is a good one!

So we know that a triangle's angles must add up to 180 degrees. Therefore, we can say that:

(3x - 3) + (5x + 3) + (4x) = 180.

This can be rewritten as 12x = 180.

Divide each side by 12 to get x alone, you get:

x = 15

Time to plug n' chug.

4x = 60, 3x - 3 = 42, 5x + 3 = 78

Boom!
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3 years ago
I need help on it, I don’t know what I’m supposed to do
bogdanovich [222]

Answer:

The length of river frontage for each lot are 96.55 ft. 98.85 ft, 101.15 ft and 103.45 ft.

Step-by-step explanation:

See the attached diagram.

The river frontage of 400 ft will be divided into 84 : 86 : 88 : 90 for each lot as AP, BQ, CR, DS and ET all are parallel.

Therefore, PQ : QR : RS : ST = 84 : 86 : 88 : 90 = 42 : 43 : 44 : 45

Let, PQ = 42x, QR = 43x, RS = 44x and ST = 45x

So, (42x + 43x + 44x + 45x) = 400

⇒ 175x = 400

⇒ x = 2.2988.

So, PQ = 42x = 96.55 ft.

QR = 43x = 98.85 ft.

RS = 44x = 101.15 ft and  

ST = 45x = 103.45 ft

(Answer)

6 0
3 years ago
Help please! I know I'm supposed to calculate how many hours she worked then multiply it by 6.75$ but I cannot get any answers t
MrMuchimi

Marcia started work at 7.32 and finished work at 3.43. In total she worked 8 hours and 11 minutes.


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Multiply her hourly rate by her hours worked:

8.18*6.75 = $55.125 (you can round this up or down).

3 0
3 years ago
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Which is the graph of y = – 3?
KATRIN_1 [288]

Answer:

this should be the graph.

Step-by-step explanation:

I hope this helps.

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3 years ago
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Answer:

A= 12.5 inches²

Step-by-step explanation:

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a=1/2(5)5

a=1/2(25)

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3 years ago
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