2 years ago

What is the value of the expression below when y=2 AND z=8? 8y-z

Mathematics

1 answer:

Kisachek [45]2 years ago

4 0

Answer:

Step-by-step explanation:

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The table shows the length and width of proportional rectangles.

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8 months ago

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Stewart wants to save for retirement and also pay off his mortgage. Each year, he has an extra $5,000. Should he put that extra

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3 years ago

Circle O has a circumference of approximately 28.3 cm. What is the approximate length of the radius, r?

Scrat [10]

Answer:

4.5 cm.

Step-by-step explanation:

We have been given that circle O has a circumference of approximately 28.3 cm.

We will use circumference formula to solve for the radius of our given circle.

$\text{Circumference of a circle}=2\pi r$

Upon substituting the measure of circumference in above formula we will get,

$28.3=2\pi r$

$r=\frac{28.3}{2\pi}$

$r=4.504084889500638\approx 4.5$

Therefore, the radius of circle O is 4.5 cm.

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2 years ago

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Rafael has ridden 14 miles of a bike course. The course is 40 miles long. What percentage of the course has Rafael ridden so far

oksian1 [2.3K]

Percentage ridden = 14/40 x 100 = 35%

Answer: 35%

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3 years ago

Solve for x and why please using these!!!

krok68 [10]

Answer:

$x = 40$

$y = 5$

Step-by-step explanation:

$4x = 2x+80\\2x = 80\\x = 40$

Edit: Solve for Y

A straight line is 180 degrees so one side (the x side) is 160°, The Y side is 20, and you can work backwards by -

$8y - 20 = 20\\8y = 40\\y = 5$

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2 years ago