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notsponge [240]
2 years ago
8

Please help!! Thanks Solve for a. 6a–5=7+8a

Mathematics
2 answers:
IRISSAK [1]2 years ago
6 0

Answer:

-6

Step-by-step explanation:

6a - 5 = 7 + 8a

6a - 8a = 7 + 5

-2a = 12

a = 12/-2

a = -6

Hope it helps:)

Nikitich [7]2 years ago
4 0
A=-6

6a-5=7+8a
Move the terms
6a-8a=7+5
Collect like terms
Calculate
-2a=12
Divide both side
a=-6
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Tamiku [17]

Answer:

perimeter- 36 in.

area- 77 in^2

Step-by-step explanation:

to find the perimeter you add all of the sides, so

7 + 7 + 11 + 11 = 36

*** the opposite side of the 7 is also 7, same with the 11 :)

to find the area for a rectangle, you use the formula A=b*h

so, the base(b)=7 and the height(h)= 11

therefore, 7 * 11 = 77

I hope this helps!! :) if it does, brainliest?? :)

3 0
3 years ago
What is the range of the following relation?
Anna [14]

Answer:

[0,-infinity[

Step-by-step explanation:

you look on the starting point and the ending point of the y-axis (♾ is always opened [ )

7 0
3 years ago
Read 2 more answers
Kelly spends 5 hours each week playing softball and 4 hours each week practicing her violin. Write the ratio of hours spent prac
Pavel [41]

Given:

Kelly spends 5 hours each week playing softball and 4 hours each week practicing her violin.

To find:

The ratio of hours spent practicing violin to hours spent playing softball three different ways.

Solution:

We have,

Time spend on Softball = 5 hours

Time spend on Violin = 4 hours

The ratio to hours spent practicing violin to hours spent playing softball is

\text{Required ratio}=\dfrac{\text{Time spend on Violin}}{\text{Time spend on Softball}}

\text{Required ratio}=\dfrac{4}{5}

It can be written as

\text{Required ratio}=4:5

\text{Required ratio}=4\text{ to }5

Therefore, the ratio of hours spent practicing violin to hours spent playing softball three different ways are \dfrac{4}{5}, 4:5 and 4 to 5.

8 0
3 years ago
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zepelin [54]
She has 18% of her homework to do.
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3 years ago
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A rectangular sandbox is surrounded on all sides by a strip of grass that is 5 ft wide on all sides. The length of the sandbox i
kaheart [24]

Answer:

Dimensions:

Length = 13.256m

width = 9.256m

Step-by-step explanation:

Let the length of the sandbox be = l and its width be = w

The length of the sandbox is 4 ft more than the width.

This means that  l = 4 + w ----- equation 1

For the next step, we will be assuming that the strip of grass is a perfect rectangle. The length of the grass strip will be equals to the length of the sandbox.

Area of the grass =  length X width = (4 +w) \times 5= 5(4+w)------ equation 2

The total area for the sandbox and the grass is 189 square feet.

This means that

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<em>(Kindly note that the positive value for the width was chosen as length cannot be negative).</em>

Now that we have our width, we can put this into equation 1 to get the length.

l=9.256+4=13.256m

7 0
3 years ago
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