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saveliy_v [14]
3 years ago
13

Which number line shows the graph of –3? A. number line from minus7 to 7 with point at minus4 B. number line from minus7 to 7 wi

th point at minus3 C. number line from minus7 to 7 with point at minus2 D. number line from minus7 to 7 with point at minus2
Mathematics
1 answer:
pogonyaev3 years ago
6 0
I would have to say B. hope this helps
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It takes 12 hours for 7 men to paint a room.
dangina [55]

28 men are needed to paint the room in 3 hours

<h3><u>Solution:</u></h3>

Given that it takes 12 hours for 7 men to paint a room

We are asked to find number of men required to paint the room in 3 hours

Recognize, "paint the room" is 1 task. One job.

7 men -------- 12 hours ------ 1 job

(7/7) = 1 men ------- 12 x 7 (84)  ------- same 1 job

The one men is rate is 84 hours to do the job

We can express this as 1/84 jobs per hour, the one-person rate

Now lets find how many men needed to paint the room in 3 hours

Let the required number of men for 3 hours be "a"

The rates of each person is simply additive.

a \times \frac{1}{84} \times 3 = 1

corresponds to rate x hours = jobs and "a" is a variable for how many men

a \times \frac{1}{28} = 28

Thus 28 men are needed to paint the room in 3 hours

4 0
2 years ago
Which of these tables is a ratio table? A 2-column table has 3 rows. Column 1 is labeled A with entries 2, 4, 5. Column 2 is lab
makkiz [27]

Answer:

its b

Step-by-step explanation:

7 0
2 years ago
Find the value
Vaselesa [24]

Answer:

cosC = BC/AC

\cos(c)  =  \frac{15}{39}

4 0
2 years ago
IM DOING THIS IN CLASS HELP! Yesterday, there was 4 inches of snow on the ground. It snowed overnight and now there is 6 inches
iren [92.7K]

Answer:

6

Step-by-step explanation:

6 inches of snow is an amount above ground, so it is represented by a positive integer.

Answer: 6

4 0
2 years ago
Read 2 more answers
X intercept of the equation below?Y-12=-2(x+3)-2y
avanturin [10]

Answer:

x=3

Step-by-step explanation:

The way you find x-intercepts is by setting y equal to 0. So then you just solve for x.

(0)-12=-2(x+3)-2(0)

-12= -2x -6 -0

-12 = -2x -6

-6 = -2x

x = 3

Hope this helped.

6 0
3 years ago
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