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umka21 [38]
2 years ago
12

Simplify the expression: 8+9–1+2a

Mathematics
2 answers:
navik [9.2K]2 years ago
6 0
8+9−1+2a
8+9+(−1)+2a
=(2a)+(8+9+-1)
=2a+16

answer is 2a+16
hope this helps :)
eimsori [14]2 years ago
4 0

Answer:

Answer: =2a + 16

Step-by-step explanation:

8+9−1+2a  =8+9+−1+2a

now its time to to do CLT  

=8+9+−1+2a

=(2a)+(8+9+−1)

=2a+16

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7 0
2 years ago
The length of a rectangle is 71/2 inches and the width is 23/4 inches. What is the ratio, using whole numbers, of the length to
Over [174]

Answer:

142:23

Step-by-step explanation:

The length of the rectangle is given as 71/2 while its width is 23/4

We are required to determine the ratio of the length to the width;

length:width

(71/2):(23/4)

(71/2)/(23/4)

71/2 * 4/23 = 142/23

The ratio of the length to the width is thus;

142:23

6 0
2 years ago
PLEASE HELP THIS IS TIMED!!!
ANTONII [103]

Answer:

its c. 1/4

hope it helps;)

7 0
2 years ago
Read 2 more answers
Maya walks 9 blocks to school. If she walks 2 blocks in four minutes, how long will it take Maya to get to school.
katrin2010 [14]

Hello!

In order to find this out we should first know the ratio for the time and distance. So it takes her 4 minutes to go 2 blocks. So the ratio looks like this: 4:2. If we are trying to find 9 blocks, then multiply it by 4 and just add the other two minutes .

So in total your answer is: It takes Maya 18 minutes to walk 9 blocks.

I hope it helps!

4 0
3 years ago
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A landscaper is making a garden bed in the shape of a rectangle. The length of the garden bed is 2.5 feet longer than twice the
Step2247 [10]

Answer:

I'll setup the problem, then you can do the calculations

Step-by-step explanation:

Perimeter = 2width(W) + 2length (L)

Area = LW

L = 2.5 + 2W

LW = 62.5

substitute L in equation for area

2.5W +  {2W}^{2}  = 62.5 \\  \\  {2W}^{2}  + 2.5 - 62.5 \\  \\  use \:  quadratic \:  solution \\\frac{ - b ±  \sqrt{ {b}^{2}  - 4ac}}{2a}

a = 2; b = 2.5; c = 62.5

send a comment if you have a question

7 0
3 years ago
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