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Levart [38]
3 years ago
8

R+r+2r-r+4r combine like terms and solve

Mathematics
1 answer:
goldenfox [79]3 years ago
6 0

R+r+2r-r+4r

R + r + 2R + 4r = R+7r

R+7r - -r =

R+6r

You might be interested in
-7.4r - 6.31 = 3.23 - 5.6r
nikdorinn [45]

Answer:

r=−5.3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−7.4r−6.31=3.23−5.6r

−7.4r+−6.31=3.23+−5.6r

−7.4r−6.31=−5.6r+3.23

Step 2: Add 5.6r to both sides.

−7.4r−6.31+5.6r=−5.6r+3.23+5.6r

−1.8r−6.31=3.23

Step 3: Add 6.31 to both sides.

−1.8r−6.31+6.31=3.23+6.31

−1.8r=9.54

Step 4: Divide both sides by -1.8.

−1.8r/−1.8=9.54/−1.8

r=−5.3

4 0
2 years ago
If the width of a rectangle is 3 yards less than it’s length and the perimeter is 130 yards, what is the length and the width.
Marianna [84]

Answer: P=130

2W +2L=130

2(31) + 2(34)=130

W=31

L=34

Step-by-step explanation:

P=130

2L + 2W

W=L-3

Add all of the sides together to get perimeter.

2(L-3) + 2L=130

2L-6+2L=130

4L-6+6=130+6

4L=136

4L/4=136/4

L=34

W=L-3

W=34-3

W=31



6 0
3 years ago
A bag of potato chips costs $6.99 and comes with 87 chips. If you could buy them
blondinia [14]

Answer:

125

Step-by-step explanation:

By doing 6.99/87, we can figure out that each chip costs approximately 8 cents. With this in mind, we can divide 10 by 0.08 to get 125.

3 0
3 years ago
Read 2 more answers
Ebony walked at a rate of 3 1/2 miles per hour for 1 1/3 hours. how far did she walk.
Pachacha [2.7K]
About 4.65 miles. Multiply 3 1/2 (3.5) by 1 1/3 (1.33) and thats how you get the answer
7 0
3 years ago
What is the area of the shaded triangle?
weeeeeb [17]
The area is 30 m!


A= 30m
6 0
2 years ago
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