Can u pls help me with this question

Mathematics

1 answer:

saul85 [17]3 years ago

3 0

Answer:

The answer is D, 43 $\frac{1}{2}$

Step-by-step explanation:

If the pile gets bigger by 8 $\frac{7}{12}$ each week, and you want to find out how big the pile is after 3 weeks, then you have to multiply 8 $\frac{7}{12\\}$ by 3 to find out how much the pile increased by.

8 $\frac{7}{12\\}$ × 3 = 25 $\frac{3}{4}$

Now, you need to add this to your initial value to get the answer.

25 $\frac{3}{4}$ + 17 $\frac{3}{4}$ = 42 $\frac{6}{4}$

Now simplify.

43 $\frac{1}{2}$

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Which graph represents the following system of inequalities? y>(1)/(2)x-1 y<=-x+1 y>-2x-1

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Answer:

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Step-by-step explanation:

$y>\frac{1}{2}x-1$ Graph a dotted line (to show it's not included) with y-intercept 1 and slope 1/2. Test the origin (0, 0) in the inequality:

$0 > \frac{1}{2}0 - 1 = -1$ This is true, so shade the side of the line that the origin is on (above the line).

Next inequality...

$y \le x+1$ Graph a solid line with y=intercept 1 and slope 1. Test the origin.

$0 \le 0+1=1$ True! Shade the side of the line the origin is on (below the line). See image2, attached.

$y>-2x-1$ Graph a dotted line with y-intercept -1 and slope -2. Test the origin (0, 0).

$0>-2(0)-1=-1$ True, so shade the side the origin is on (above the line).

The solutions are located where all the shadings intersect. See image3. The solutions are above the red line, above the green line and below the blue line.