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arlik [135]
2 years ago
9

X + 7 when x = -11 What is the answer

Mathematics
1 answer:
AleksAgata [21]2 years ago
7 0
-3!!!!!!!! Is the answer have fun and I hope you get this right
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The first of two numbers added to two times the second equals 9. The first number decreased by the second equals 3. Find the num
ad-work [718]

Answer:

18 and 6

Step-by-step explanation:

i know this because all you have to do is multiply the tow numbers by 2

6 0
3 years ago
I need help remembering the steps for 2x+5y=-7
dsp73
Get Y by itself so it' should look like this

5y=2x+7 after then you have divide 5 onto the right side and it should look like

Y=2/5x+7/5
7 0
4 years ago
The square root of pie must be at less ten numbers long
ZanzabumX [31]

The square root of pi is 1.77245385091.

4 0
2 years ago
The farmer decided that he ordered enough planks for an arena that measured 115 1/4 ft by 63 1/2 ft. Is he correct? Explain.
Mars2501 [29]

Answer:

<h2>The question we need to answer is what is the perimeter of the arena</h2>

Step-by-step explanation:

The question we need to answer is what total length of plank did the farmer ordered for the arena.

to solve for the length of plank to cover the arena we need to solve for the perimeter of the arena.

given data

length L= 115 1/4 ft = 115.25ft

width W= 63 1/2 = 63.5ft

perimeter= 2L+2W

perimeter= 2(115.25)+2(63.5)

perimeter= 230.5+127

perimeter= 357.5ft

This means that the farmer ordered a total length of 357.5ft of plank

3 0
3 years ago
Suppose that 10 fair coins are tossed. Find the numbers of ways of obtaining exactly 1 heads. Round the answer to the nearest wh
Delicious77 [7]

Answer: 10

Step-by-step explanation:

Given : Total number of coins tossed = 10

Possible outcomes to toss a coin = Head or tail

Number of possible outcomes = 2^{10}=1024

Number of ways of obtaining exactly 1 heads = {10}C_1=\dfrac{10!}{1!9!}     [using combinations ^nC_r=\dfrac{n!}{r!(n-r)!} ]

=10

Hence, the numbers of ways of obtaining exactly 1 heads= 10

4 0
4 years ago
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