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kherson [118]
2 years ago
15

If not able to awnser say it in the comments

Mathematics
2 answers:
olga_2 [115]2 years ago
6 0

Answer:

C

Step-by-step explanation:

4y-9+4y simplified by combining like terms is 8y-9

Anna71 [15]2 years ago
4 0

Answer:

C. 4y - 9 + 4y

Step-by-step explanation:

C. 4y - 9 + 4y

Collect like terms:

4y + 4y - 9

Combine like terms:

8y - 9

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the length of a rectangle is 4 more than 3 times the width. If the perimeter of the rectangle is 18.4cm, what is the area of the
antoniya [11.8K]

Answer:

A = 10.27cm²

Step-by-step explanation:

Let's represent the width as x,

therefore since the length is 4 more than 3 times the width, it can be represent as 3x + 4,   Perimeter = 18.4cm

Perimeter of a rectangle = 2(L + B)

18.4= 2(3x+4+x)\\18.4= 6x+8+2x\\18.4-8=6x+2x\\10.4=8x\\x=\frac{10.4}{8}\\x=1.3

width = 1.3cm

Length = 3x + 4 = 3*1.3 + 4 = 7.9cm

Area of a rectangle = length x width

A = 7.9 * 1.3 = 10.27cm²

6 0
2 years ago
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Yolanda ran 134 miles on Saturday and 212 miles on Sunday. She used fraction strips to model the total distance she ran. Rectang
velikii [3]

Answer:

The answer is B

3 0
3 years ago
How to solve proportion using cross products,k8=14/4
luda_lava [24]
Multiply the variable k times 4 would give you 4k.
Then cross multiply 14x8 = 112

Therefore, you would have 4k = 112.
Divide 112 by 4 to get your answer!
6 0
3 years ago
What is the constant of proportionality?
Mars2501 [29]

Answer:

The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate. The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.

Step-by-step explanation:

hope this helps if do mark brainllest pls

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-5- is the correct answer
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