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3 years ago

Compute: 245 * 1,493. Show your work.

1 answer:

4 0

0 + 0 + 5 = 5

0 + 2 + 6 = 8

6 + 7 + 4 = 17
Put the 7 in the appropriate column and carry the 1.

8 + 9 + 7 + 1(carried) = 25
Put the 5 in the appropriate column and carry the 2.

9 + 5 + 2(carried) = 16
Put the 6 in the appropriate column and carry the 1.

2 + 1(carried) = 3

So: 1493 × 245 = 365785

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Find x 9x+3+5x-2+11x-21=180

Bess [88]

Answer:

x = 8

Step-by-step explanation:

Simplifying

(9x + 3) + (5x + -2) + (11x + -21) = 180

Reorder the terms:

(3 + 9x) + (5x + -2) + (11x + -21) = 180

Remove parenthesis around (3 + 9x)

3 + 9x + (5x + -2) + (11x + -21) = 180

Reorder the terms:

3 + 9x + (-2 + 5x) + (11x + -21) = 180

Remove parenthesis around (-2 + 5x)

3 + 9x + -2 + 5x + (11x + -21) = 180

Reorder the terms:

3 + 9x + -2 + 5x + (-21 + 11x) = 180

Remove parenthesis around (-21 + 11x)

3 + 9x + -2 + 5x + -21 + 11x = 180

Reorder the terms:

3 + -2 + -21 + 9x + 5x + 11x = 180

Combine like terms: 3 + -2 = 1

1 + -21 + 9x + 5x + 11x = 180

Combine like terms: 1 + -21 = -20

-20 + 9x + 5x + 11x = 180

Combine like terms: 9x + 5x = 14x

-20 + 14x + 11x = 180

Combine like terms: 14x + 11x = 25x

-20 + 25x = 180

Solving

-20 + 25x = 180

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '20' to each side of the equation.

-20 + 20 + 25x = 180 + 20

Combine like terms: -20 + 20 = 0

0 + 25x = 180 + 20

25x = 180 + 20

Combine like terms: 180 + 20 = 200

25x = 200

Divide each side by '25'.

x = 8

8 0

3 years ago

Read 2 more answers

PLEASE HELP I WILL GIVE BRIANLIEST 15 POINTS!!! What is the equation in slope-intercept form of the line that crosses the x-axis

harkovskaia [24]

Answer:

Choice D

Step-by-step explanation:

First we should find the slope of the equation, so since it's perpendicular to the other equation that means it's the opposite and the reciprocal of that slope. So the slope is $\frac{9}{4}$ .

Now we have to find the y-intercept. We already know the x-intercept, so we could use that to find the y-intercept. For that we need to know the slope and one ordered pair, which is (36,0). Then we plug into this formula $y=mx+b$ .