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mylen [45]
3 years ago
12

17−5r+9r=12+6r−1 what is r?

Mathematics
1 answer:
jonny [76]3 years ago
7 0

Answer:

r=3

Step-by-step explanation:

simplify each side

4r+17=6r+11

Subtract 4r from both sides.

17=2r+11

Subtract 11 from both sides

6=2r

divide both sides by 2

3=r

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Please help don’t get it
Romashka-Z-Leto [24]

Answer:

A

Step-by-step explanation:

One complete turn is 1 perimeter (aka circumference).

We have to find the length it turned, hence, its circumference.

The formula for circumference (C) of a circle is:

C=2\pi r

Where r is the radius

The radius is HALF of diameter. Given diameter is 250, the radius is:

r = 250/2 = 125 feet

Now, substituting in formula we have:

C=2\pi r\\C=2\pi (125)\\C=250\pi\\C=785.4

So, it turned 785.4 feet with 1 rotation.

The correct answer is A

4 0
4 years ago
One rectangle is devided into four parts. How much is one part?
Rom4ik [11]

Answer:

P = \¼R

Step-by-step explanation:

Given

Shape: Rectangle

Division = 4 parts

Required

How much is one part of the division

Represent the rectangle with R and the parts with P

When a rectangle (R) is divided into 4 parts (P); the relationship between R and P is:

P = \frac{R}{4}

P = \¼R

<em>This implies that the one part of the division is ¼ of the divided rectangle</em>

7 0
3 years ago
Spencer has two tapes of different color for decoration. His red tape measures 5/6 of a yard, and his green tape measures 1/3 of
Lady_Fox [76]
Given from the question
first fraction = 5/6
second fraction = 1/3

We're asked what's the difference between the fraction

First, we need to equalize the denominator to the same number. The first denominator is 6, the second denominator is 3. I'd like to make them both 6. So the second denominator needs to be multiplied by 2, so does the numerator
second fraction = 1/3
second fraction = (1 × 2)/(3 × 2)
second fraction = 2/6

Second, we have new fractions which have the same denominator. Calculate the difference
d = first fraction - second fraction
d = 5/6 - 2/6
d = 3/6

The red tape is 3/6 yard more than the green tape.
6 0
4 years ago
Find x<br> options;<br> a) 21√2/2<br> b) 21√2<br> c) 21√3/2<br> d) 7
pishuonlain [190]

The value of x is  21√2/2

The correct option is (A)

<h3>What is Trigonometry?</h3>

Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles.

In triangle having angle 60.

sin 60 = P/ 7√3

√3/2= P/7√3

2P= 21

P= 21/2

Now again

cos 45= 21/2/x

1/√2 = 10.5/x

x=  21√2/2

Learn more about trigonometry here:

brainly.com/question/26719838

#SPJ1

6 0
2 years ago
What is 2+67689498674967654
Ray Of Light [21]

Answer:

Step-by-step explanation:

6768949867496765<u>6</u>

6 0
3 years ago
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