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adell [148]
4 years ago
10

What is 3x-20+x=180 in steps

Mathematics
1 answer:
Scilla [17]4 years ago
5 0

3x-20+x=180

4x-20=180

4x-20+20=180+20

4x=200

x=50

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a carpenter needs 30 rafters, each 380cm long. find the total length of rafters in meters. (2 steps)
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The answer is 114 meters
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Which fraction has the same value as 0.6
Zinaida [17]

Using the place value chart we can see that the decimal 0.6 is six tenths, so we can write 0.6 as the fraction \frac{6}{10}. Notice however that \frac{6}{10} is not in lowest terms so we need to divide the numerator and the denominator by the greatest common factor of 6 and 10 which is 2.

-Image Provided-

4 0
3 years ago
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The ratio of the measure of the vertex angle to the base angle of an isosceles triangle is 8:5. Find the measure of the vertex a
Pie

Answer:

Step-by-step explanation:

The two base angles are equal.

The vertex angle is 8x

The two base angles are 5x + 5x

The sum of all three angles = 180 degrees (all triangles make 180 degrees when their interior angles are added).

5x + 5x + 8x = 180

18x = 180

x = 180/18

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Therefore the vertex angle is 8*10 = 80 degrees

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The other base angle = 50 because the triangle is isosceles.

8 0
2 years ago
Find the equation of the line that passes throughP(6,0) andQ(1,−1).
yarga [219]

Answer:

Step-by-step explanation:

y=mx+b where m is the slope and b is the y intercept

m=(y2-y1)/(x2-x1), we have points (6,0) and (1,-1)

m=(-1-0)/(1-6)=1/5 so we have

y=x/5+b, using point (6,0) we can solve for b

0=6/5+b

b=-6/5

y=x/5-6/5 or more neatly

y=(x-6)/5

5 0
3 years ago
2. Round off the following numbers to two decimal places:
Viktor [21]

Answer:

I think you mean significant figures

Step-by-step explanation:

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3 years ago
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