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aev [14]
3 years ago
15

Four less than 2 times the quantity of a number minus 3 is 12

Mathematics
1 answer:
svetlana [45]3 years ago
7 0

Answer:

11.

Step-by-step explanation:

(2(n-3))-4=12

(2n-6)-4=12 <em>distribute</em>

2n-6-4=12

2n-10=12

2n=12+10 <em>isolate</em><em> </em><em>n</em><em> </em>

2n=22

2n÷2=22÷2

n=11

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A ball is thrown straight out at 80 feet per second from an upstairs window that's 15 feet off the ground. Find the ball's horiz
Alex73 [517]

Answer:

Step-by-step explanation:

In order to find the horizontal distance the ball travels, we need to know first how long it took to hit the ground. We will find that time in the y-dimension, and then use that time in the x-dimension, which is the dimension in question when we talk about horizontal distance. Here's what we know in the y-dimension:

a = -32 ft/s/s

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t = ?? sec.

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t = .968 sec (That is not the correct number of sig fig's but if I use the correct number, the answer doesn't come out to be one of the choices given. So I deviate from the rules a bit here out of necessity.)

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We use the equation for displacement again, and filling in what we know in this dimension:

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6 0
3 years ago
Read 2 more answers
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Elan Coil [88]

Answer:


Step-by-step explanation:

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6 0
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