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horrorfan [7]
3 years ago
13

Expand the expression and combine like terms: −2(−5n+6)+5(2−7n)

Mathematics
1 answer:
egoroff_w [7]3 years ago
6 0
10n-12+10-35n= -25n-2
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X+4y=6<br> 3x+3y=9<br> Answer is 6.3 but how
maksim [4K]

Answer:

X = 2

Y = 1

Step-by-step explanation:

x + 4y = 6

3x + 3y = 9

3x + 12y = 18

3x + 3y = 9

9y = 9

x + 4y = 6

y = 1

x + 4 * 1 = 6

y = 1

x + 4 = 6

y = 1

x = 2

so there ia only 1 solution for this equation is (2;1)

Done :))

8 0
3 years ago
I need this for today
stiks02 [169]

Answer: The Last option is the only option equivalent to that equation.

7 0
3 years ago
If m 6 =50 then find m 11
Alex
91.6 solving for m in the first equation m=8.3repeating so 11 time 8.3repeating.
7 0
3 years ago
-4(11x+2)=80<br> Solve for x
jek_recluse [69]

Answer: x=-2

Step-by-step explanation:

To solve for x, we want to isolate x.

-4(11x+2)=80         [distribute]

-44x-8=80             [add both sides by 8]

-44x=88                 [divide both sides by -44]

x=-2

Now, we know that x=-2.

3 0
2 years ago
Read 2 more answers
Labyrinth Middle School is 363 ft long Tabitha makes a scale model of the skull and the drawing is 33 in Long. What is the scale
san4es73 [151]

1 inch on the drawing represents 11 feet in the labyrinth middle school.

Step-by-step explanation:

Step 1:

The labyrinth middle school is much larger than the drawing. For 33 inches on the drawing, it is 363 feet on the actual school.

So 33 inches on the drawing is equal to 363 feet in the labyrinth school.

Step 2:

To calculate the scale factor, we divide the measurement after scaling by the same measurement before scaling.

In this case, the drawing that Tabitha drew is after scaling and the labyrinth middle school is the measurement before scaling

The scale factor = \frac{33}{363} = \frac{1}{11}.

So the scale factor is \frac{1}{11}. This means that 1 inch on the drawing is 11 feet in the actual school.

8 0
3 years ago
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