3 years ago

What is the value of a? -2(a-8)+6a=36

2 answers:

7 0

<span>-2(a-8)+6a=36
=>-2a + 16 + 6a = 36
=> 4a = 36 - 16
=> 4a = 20
=> a = 20 / 4
=> a = 5 ..

Hope it helps !!!!</span>

Aleksandr [31]3 years ago

6 0

First we expand the brackets:

-2a + 8 + 6a = 36
4a + 8 = 36

We then need to get the a's onto one side and the numbers onto the other:

4a = 28

We can then divide to get an x by itself:

a = 28/4 = 7

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2 years ago

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In a park, a sidewalk is built around the edge of a circular garden as shown. The sidewalk is 5 feet wide, and the garden measur

posledela

Answer:

63 feet.

Step-by-step explanation:

The total diameter of the circular garden is given by 5ft+ 10 ft + 5 ft= 20 feet

As the circumference of the circle = 2πr where r = radius obtained by dividing the diameter by 2. Here the diameter = 20 feet and r= d/2 = 20/2 = 10 feet

Putting the values in the circumference formula

Then C= 2(22/7) (10)= 62.85 feet

Rounding gives almost 63 feet .