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kumpel [21]
3 years ago
9

If 2x-3(x+4)=-5 then x=

Mathematics
1 answer:
Mrrafil [7]3 years ago
5 0
2x - 3(x + 4) = -5
2x - 3x - 12 = -5
-x - 12 = -5
-x = -5 + 12
-x = 7
x = -7

The answer is: x = -7.
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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
Please help, basic algebra. Find the value of x
Helga [31]

Answer:  x = 131

Reasoning: Alternate interior angle theorem

The angles shown are inside the parallel lines, so they are interior angles. They are also considered alternate angles because they are on alternating sides of the transversal cut. Alternate interior angles are congruent when we have parallel lines like this.

7 0
3 years ago
Jeff is saving to purchase a new basketball that will cost at least $88. He has already saved $32. At least 7) Jeff is saving to
Mariulka [41]
The answer is 224 
becs 32*7=224
4 0
3 years ago
Write the logarithmic expression as a single logarithm.
Gelneren [198K]

Answer:

\log_48

Step-by-step explanation:

\log_432-\log_4(4) = \log_4(\frac{32}{4} )=\log_48

5 0
1 year ago
What is 10,000,000,000 in standard form?
Flauer [41]

Answer:

10 billion

Step-by-step explanation:

4 0
3 years ago
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