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Dmitrij [34]
3 years ago
7

Please help! Solve for x.5x+10=2x-11

Mathematics
2 answers:
earnstyle [38]3 years ago
6 0
Your solution is x= -7
5x+10=2x-11
(5x-2x)+10=(2x-2x)-11
3x+10=-11
3x(+10-10)=(-11-10)
3x=-21
3x\3=-21\3
X= -7
iren [92.7K]3 years ago
3 0

Answer:

-7

Step-by-step explanation: just did the test

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Please help i have 2 questions thank you very much.
Rudik [331]
Hello!

Question 1
We first have to convert everything to yards since the concrete is charged by the cubic yards

15 feet = 5 yards
15 feet = 5 yards
3 inches = 0.08333

Multiply these to find the volume

5 * 5 * 0.08333 = 2.08325

Multiply this by the cost

2.08325 * 46 = 95.83

The answer is C) $95.83
------------------------------------------------------------------------------------------------------
Question 2

You have to find the volume of the first pyramid

The equation we use is V = \frac{lwh}{3}

V is volume
l is length
w is width
h is height

Put in the values we know

V =  \frac{16 * 16 * 28}{3}

Multiply

V =  \frac{7168}{3}

Divide

V = 2389.3333

Now we use this to find the side length of the second pyramid

2389.333 =  \frac{lw * 112}{3}

Multiply both sides by 3

<span>7167.999 = lw * 112
</span>
Divide both sides by 112

63.9999 = lw

Since it is a square pyramid we know that sides are equal

63.999 = l^2

Take the square root of both sides

8 = l

The answer is B) 8in

Hope this helps!
8 0
3 years ago
What is the value of this expression when x = -6 and ? 4(x2 + 3) − 2y
Travka [436]

Answer:

I'm gonna guess and I don't know. I'm gonna go with C or A

3 0
2 years ago
on Monday Steven read 9 pages of his new book to finish the first chapter on Tuesday he needs to read double the number of pages
GarryVolchara [31]
Answer=18 pages

Steven read 9 pages on Monday. If he needs to read DOUBLE that amount on Tuesday, then we need to take the number of pages he read on Monday and times it by 2.

9*2=18pages

Steven needs to read 18 pages on Tuesday.

**Remember that Double is the same as 'two times more', or 2x more...
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3 years ago
Read 2 more answers
Check this please I need grade
Elden [556K]
All good and for number 6 you should draw an acute angle
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3 years ago
Is this a negative, positive, or zero slope?
sveticcg [70]

Answer:

i think 0 slop. wait for the other person to answers this, to be sure of the answer

Step-by-step explanation:

5 0
2 years ago
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