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3 years ago

What is the answer to 3 1/2r=28

Mathematics

2 answers:

alexdok [17]3 years ago

8 0

So you change 3 1/2 to 3.5 then divide 28 and 3.5 so it will make r=8

Lorico [155]3 years ago

4 0

3 1/2r=28
3.5r=28
cross of 3.5 and r remains
divide 28 and 3.5
and r=8
r=8

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-3 + (- 1/6) what is ansewe help asap

vichka [17]

Answer:

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Step-by-step explanation:

3 0

3 years ago

The sales tax for an item was $19.20 and it costs $480 before tax. Find the sales tax rate. Write your answer as a percentage

Zigmanuir [339]

Answer:

sales tax rate = 4%

Step-by-step explanation:

In this problem formula to express one term in percentage is used

To express x as percentage of y is given by (x/y*100) %

______________________________________________

Cost of item = $480

sales tax = $19.20

we have to find sales tax rate.

sales tax rate is percentage of cost price which will levied as tax .

thus, we have to find sales tax as percentage of cost price.

using the percentage cost as given above

sales tax as percentage = sales tax/ cost of item *100

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Thus, sales tax rate is 4%.

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5 0

3 years ago

Somebody please help me on this!!

miskamm [114]

80 degrees because it decreases by a half each time so by the time it is E (the fourth letter) it has gotten to 20 so the answer is 160

5 0

2 years ago

Read 2 more answers

the formula for the circumference (c) of a circle is c= 2πr. calculate c if r=0.8695 mm, keeping the highest possible number of

Marianna [84]

The value of the circumference (C) of a circle, having a radius (r) = 0.8695 mm, using the formula C = 2πr, is calculated to be 5.4632296245926504416865368435231‬ mm.

A circle is a shape formed by all points in a plane that are at a particular distance from the center.

The linear distance around a circle is defined as its circumference. In other words, if a circle is opened to produce a straight line, the length of that line equals the circumference of the circle.

The formula for the circumference of a circle is given:

C = 2πr,

where C is the circumference of the circle, r is its radius, and π is a constant.

We are asked to find the circumference of the circle (C), given its radius (r) = 0.8695 mm.

Using the formula of the circumference C = 2πr, we can find the circumference as:

C = 2*π*(0.8695) mm,

or, C = 5.4632296245926504416865368435231‬ mm.

Thus, the value of the circumference (C) of a circle, having a radius (r) = 0.8695 mm, using the formula C = 2πr, is calculated to be 5.4632296245926504416865368435231‬ mm.

Learn more about the circumference of a circle at

brainly.com/question/12823137

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6 0

1 year ago

9s+3=57 Z/5+3=-35 7(c-12)=-21

Fudgin [204]

The answer you're looking for is s=6.
by substitution you'd get 6.

4 0

3 years ago