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nydimaria [60]
3 years ago
6

Simplify the following expression by combining like terms.

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
3 0

Answer:

2x² + 5x

Step-by-step explanation:

Given

3x² + 4x - x² + x ← collect like terms

= (3 - 1)x² + (4 + 1)x

= 2x² + 5x

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Ivan has 15 yards of green felt and 12 yards of blue felt to make 3 quilts if Ivan uses the same total number of yards for each
mixas84 [53]

Answer:

9 yards

Step-by-step explanation:

Let the length of each quilt be 'l'.

Given:

Length of green felt (g) = 15 yards

Length of blue felt (b) = 12 yards

Total number of quilts = 3

Now, the length of 3 quilts is given as:

Total\ length=l+l+l=3l ----- (1)

As per question:

Total length = Length of green felt + Length of blue felt

Total length = g+b

Total\ length=15+12=27--------- (2)

Now, comparing equations (1) and (2), we get:

3l=27\\\\l=\frac{27}{3}\\\\l=9\ yards

Hence, each quilt measures 9 yards in length.

3 0
3 years ago
- 7.5 divided by - 2.5
amm1812
-7.5 / -2.5 = 3

------------
8 0
3 years ago
z 5 ​ − z+2 2z+4 ​ =−3 space, startfraction, 5, divided by, z, end fraction, minus, start fraction, 2, z, plus, 4, divided by, z
yan [13]

Answer:

The sum of all the possible values for z that satisfy the above equation is -5.

Step-by-step explanation:

The given equation is

\frac{5}{z}-\frac{2z+4}{z+2}=-3

We need to find the sum of all the possible values for z that satisfy the above equation.

The given equation can be rewritten as

\frac{5}{z}-\frac{2(z+2)}{z+2}=-3

Cancel out common factors.

\frac{5}{z}-2=-3

Add 2 on both sides.

\frac{5}{z}-2+2=-3+2

\frac{5}{z}=-1

5=-z

Multiply both sides by -1.

-5=z

Only z=-5 satisfy the given equation.

Therefore the sum of all the possible values for z that satisfy the above equation is -5.

8 0
3 years ago
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LuckyWell [14K]
I believe the answer is C
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2 years ago
What is the slope of the line X=-3?
Mars2501 [29]

Answer:

undefined

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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