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Licemer1 [7]
3 years ago
12

mary is eighteen years older than her son. she was three times as old as he was one year ago.How old are they now?

Mathematics
1 answer:
zimovet [89]3 years ago
4 0

Answer:

<h2>The son is 10 Mary is 28</h2>

Step-by-step explanation:

I hope dis helps

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A town has a population of 8000 and grows at 3% every year. To the nearest tenth of a year, how long will it be until the popula
Alexxx [7]

Answer:

It will take approximately 34 years

Step-by-step explanation:

If a town population is 8000 and grows 3% annually.

How long will it take to reach 16300

growth is 16300 - 8000 = 8300

using simple interest formula

SI = (P × r × t)/100

8300 = (8000 × 3 × t)100

8300= (80 × 3)t

8300 = 240t

t = 8300/240

t ≈ 34 years to the nearest tenth

8 0
3 years ago
√72 what is the non-perfect simplefied square root radical
Lostsunrise [7]

For simplifying radicals, remember the product rule of radicals: √ab = √a x √b . This radical is simplified as such:

√72 = √9 x √8 = 3 x √4 x √2 = 3 x 2 x √2 = 6√2

In short, the simplified radical of √72 is 6√2.

5 0
3 years ago
Choose the formula for the volume of a cone V=1/3
mote1985 [20]
If you know the cone volume and the cone radius, then
height = 3*Volume / PI * r^2

answer is D


3 0
3 years ago
How many solutions does the system of inequalities graphed below have?
kompoz [17]
I would say D) Infinitely many.

The question is slightly confusing but what I can tell is there are at least 3 points on the graph that are touched so it can't be asking about that since we have answers like 0, 1 and 2.

So next, we can look at the slopes aka how far the lines reach and cross. They seem to keep going on and on without stopping at any visible point on the graph. So you can say there are infinitely many solutions with any real number.
4 0
3 years ago
Explain when a trapezoid is not a parallelogram. Sketch an example.
rjkz [21]

A quadrilateral is a parallelogram if it has two pairs of parallel sides.

A quadrilateral is a trapezoid if it has one pair of parallel sides.

This implies that all parallelogram are trapezoid: if you have two pairs of parallel sides, you have one pair of parallel sides - you actually have more than required.

On the other hand, not all trapezoid are parallelogram: if you have one pair of parallel sides, you can't be sure that the other pair of sides will be parallel, too.

So, a trapezoid is not a parallelogram if it has only one pair of parallel sides, and the other two are not parallel.

5 0
3 years ago
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