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2 years ago

Simplify (5.8x-3d+d)-(7x-2.5d)

Mathematics

1 answer:

Harrizon [31]2 years ago

7 0

Answer:

-1.2x+0.5d

Step-by-step explanation:

5.8x-7x=1-1.2x

-3d+d-2.5d=0.5d

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Step2247 [10]

Step-by-step explanation:

7x + 3x + 90= 180

10x= 180-90

10x= 90

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x=10

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2 years ago

Read 2 more answers

For a circle with a radius of 15 cm, what is the length of an arc intercepted by an angle measuring 120°?

slega [8]

Answer: 31.43 cm

Step-by-step explanation:

The length of an arc is calculated using the formula:

$\frac{theta}{360}$ X 2 $\pi$ r

where : theta is the angle in degree

r = radius

If the angle is given in Radian , the length can be calculated using the formula:

L = r∅

Since , the angle is given in degree , we will use the first formula.

L = $\frac{theta}{360}$ X 2 $\pi$ r

L = $\frac{120}{360}$ X 2 X π X 15

L = $\frac{1}{3}$ X 2 X $\frac{22}{7}$ X 15

L = $\frac{660}{21}$

L = 31.42857143

L ≈ 31.43 cm

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3 years ago

Max and Leah each have a lemonade stand . Max sold 12 glasses the first hour and 10 glasses each hour after that . Leah sold 8 g

Lesechka [4]

Answer:

max wil sell 52 because the first hour he sold 12 5hours -1 hour = 4 hour

4 hour × 10 p/h= 40

max sold 12+40 =52

leah will sell 58 because the first hour she sold 8

5hours - 1hour = 4 hours

4hours× 10 glasses p/h = 40

leah sold 40+8 =48 glasses

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3 years ago

Write and equation for the trend line shown

natita [175]

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2 years ago

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seraphim [82]

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