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4 years ago

Solve for x 4(3x – 5) - 2x = -30

Mathematics

2 answers:

GrogVix [38]4 years ago

5 0

Hdhdydshwshshhdhdhde

german4 years ago

3 0

Answer:

your answer is -1

Step-by-step explanation:

D = distributive property

S = switch

C = combine

I = inverse operations

F = finalize

$4(3x - 5) -2x = -30\\12x -20 -2x = -30\\12x -2x = -30 + 20\\10x = -10\\x = \frac{-10}{10}\\ x = -1$

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Solve the equation for x. 1/3 (6x - 15) = 1/2 (10x-4)

Readme [11.4K]

Answer:

Step-by-step explanation:

$\frac{1}{3} (6x - 15) = \frac{1}{2} (10x - 4)$

Expand the terms in the bracket

That's

$\frac{1 }{3} \times 6x + \frac{1}{3} ( - 15) = \frac{1}{2} (10x) + \frac{1}{2} ( - 4) \\ 2x - 5 = 5x - 2$

Subtract 5x from both sides

$2x - 5x - 5 = 5x - 5x - 2 \\ - 3x - 5 = - 2$

Add 5 to both sides

$- 3x - 5 + 5 = - 2 + 5 \\ - 3x = 3$

Divide both sides by - 3

$\frac{ - 3x}{ - 3} = \frac{3}{ - 3}$

We have the final answer as

Hope this helps you

3 0

3 years ago

Please help me with this asap

Oduvanchick [21]

Answer:

The answer is 3

Step-by-step explanation:

5 0

3 years ago

What is the equation of the circle with center (4, 4) that passes through the point (10, 14)?

Katarina [22]

Answer:

Step-by-step explanation:

You use the given information in the standard form of a circle equation to solve for r. We have (h, k) which is the center and a point (x, y). The standard equation for a circle is

$(x-h)^2+(y-k)^2=r^2$

Filling in:

$(10-4)^2+(14-4)^2=r^2$ and

$6^2+10^2=r^2$ and

$r^2=136$

Now that we used the coordinate we don't need it anymore. x and y go back into the equation as x and y, not numbers. We do, however, need the center. Writing the equation:

$(x-4)^2+(y-4)^2=136$ which is choice D.

6 0

3 years ago

Alice sold candy for a school fundraiser. Chocolate bars sold for$2.25 a piece, bags of chocolate covered peanuts sold for$1.85

Rzqust [24]

Answer:

12 bags

Step-by-step explanation:

2.25 × 9 = 20.25

.50 × 10 = 5

20.25 + 5 = 25.25

47.45 - 25.25= 22.2

22.2 ÷ 1.85 = 12

8 0

3 years ago

The letters P-R-O-B-A-B-I-L-I-T-Y are written on a set of cards. You mix the cards thoroughly. Without looking, you draw one let

OleMash [197]

Answer:

P(P, then Y)=(1/11)(1/10)=1/110

Step-by-step explanation:

The number of letters in probability is 11.

There is 1 P.

The probability of drawing a P on draw 1 is the number of ways of drawing a P, which is 1, divided by the number of ways of drawing any letter, which is 11. Thus:

Probability of drawing a P on the first draw is 1/11.

There are now 10 letters left. There is 1 Y. so

Probability of drawing a Y on the second draw given that you drew a P on the first draw is 1/10.

The probability of drawing a P on the first draw and a Y on the second draw is

(probability of a P on draw 1)(probability of drawing a Y on draw 2, given a P on draw 1)

P(P, then Y)=(1/11)(1/10)=1/110

8 0

3 years ago