<span>length = 7x
</span><span>width = 2x
2(7x + 2x) = 72
7x + 2x = 72/2
9x = 36
x = 36/9
x = 4
</span>
width = 2x = 2 * 4 = 8 units<span>
</span>
Answer: Choice D
(0,-4) (4,0) and (-1,-5)
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Explanation:
Plug in x = -4
y = x-4
y = -4-4
y = -8
The point (-4,-8) is on the line instead of (-4,0). This rules out choice A and choice B.
Now plug in x = 1
y = x-4
y = 1-4
y = -3
We get (1,-3) instead of (1,5). So we can rule out choice C.
The answer must be choice D.
The graph is below.
-5=1+x/3
Subtract 1 from both sides
-6=x/3
Multiply both sides by 3
-18=x
Check:
1+ -18/3=1-6=-5. Works!
So the answer is x= -18
Answer:

Step-by-step explanation:
Find the sum

we know that

substitute

step 1
Separate the mixed number into a whole number and a fraction number

step 2
Group the whole numbers an the fraction numbers

step 3
Combine like terms

Remember that

substitute


The answer is reasonable
Because
I know that 1 3/4 < 2 and 1 5/8 < 2
so
The sum of both numbers must be less than 4