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bulgar [2K]
3 years ago
9

-3r-8(8r+8)=-9(-4+9r)​

Mathematics
1 answer:
natulia [17]3 years ago
8 0

Answer:

r= 7.14 (rounded to 2 decimal places)

Step-by-step explanation:

We have to solve this equation for the value of r. We will use distributive property and basic algebra to solve this.

Distributive property is  a(b+c) = ab + ac

Now, the steps of solving are shown below:

-3r-8(8r+8)=-9(-4+9r)\\-3r -64r-64=36-81r\\-67r-64=36-81r\\-67r+81r=36+64\\14r=100\\r=\frac{100}{14}\\r=7.14

Hence, value of r is 7.14 (rounded to 2 decimal places)

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PtichkaEL [24]

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4 0
2 years ago
a line segment with points p(1 2) and q(4 3) is reflected across the line y=x. What are the new coordinates of the points of the
katen-ka-za [31]

Answer:

The new coordinates of the points of the line segment are p'(2,1) and q'(3,4)

Step-by-step explanation:

we know that

When you reflect a point across the line y= x, the x-coordinate and y-coordinate change places.

so

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3 0
3 years ago
A sphere is inscribed in a cube. Explain the relationship between the surface areas of the two solid figures
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Step-by-step explanation:

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3 0
2 years ago
Knox save $56 during the summer break. He spent 3/7 of his savings on a pair of baseball cleats. He spent 5/8 of the remaining m
iogann1982 [59]

Answer:

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8 0
3 years ago
Read 2 more answers
Please help me!
Tamiku [17]
Check the picture below.

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4 0
3 years ago
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