3 years ago

The work of a student to solve the equation 2(6y − 3) = 20 + 6y is shown below:

Mathematics

1 answer:

Gnom [1K]3 years ago

7 0

Step 2: 8y-5=10+3y is wrong
And the second step is right

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I need help ASPA 100 PTS.

SOVA2 [1]

Answer:

i can barely see whats on the paper if take a pic of it better then ill help you answer it

Step-by-step explanation:

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2 years ago

A hot air balloon descended 99.6 meters in 12 seconds. What was the balloon's average rate of descent in meters per second?

bagirrra123 [75]

99.6 divided by 12 is 8.3 so the answer is 8.3

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2 years ago

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Solve for b 2(-2b+3)=9

Alexxx [7]

Answer:

b=-3/4 or b=-0.75

Step-by-step explanation:

$2(-2b+3)=9$

$2b+3=\cfrac{9}{2}$

$-2b=\cfrac{9}{3} -3$

$-2b=\cfrac{3}{2}$

$b=-\cfrac{\frac{3}{2} }{2}$

$b=-\cfrac{3}{2\times 2}$

$b=-\cfrac{3}{4}$

Hope it helps! :)

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2 years ago

8 meters increased by 25%

satela [25.4K]

8m x 125% = 10 meters

or

8m * 25% = 2m

Increasd by: meaning addition thus, add 25% of 8 to 8.

8m + 2m = 10 meters.

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2 years ago

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What are the x– and y–intercepts of the graph of y = 2x^2 – 8x – 10?

Nadya [2.5K]

x-intercepts are found by setting y=0
$y=2x^2-8x-10\rightarrow0=2x^2-8x-10$
factor out a 2 $0=2(x^2-4x-5)\rightarrow0=x^2-4x-5$
 $0=(x-5)(x+1)$ roots should be x=-1,5
therefore, x-intercepts are (-1,0) and (5,0)

y-intercepts are found by setting x=0
$y=2x^2-8x-10\rightarrow y=2(0)^2-8(0)-10$
$\rightarrow y=0-0-10=-10$
therefore, y-intercept is (0,-10)

4 0

2 years ago