Explain the different ways that you can use multiplication to estimate and solve division problem

Mathematics

1 answer:

oee [108]3 years ago

6 0

if I read your question correctly, you can use multiplication to get the same answer with division. for example;

2 x 2 = 4; 4 divided by 2 = 2.

8 x 4 = 32; 32 divided by 8 = 4; 32 divided by 4 = 8.

5 x 6 = 30; 30 divided by 5 = 6; 30 divided by 6 = 5

hope this helped! :D

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ms Callahan is building a new dog pen for her dog. she has 24feet of fencing. the pen needs to be a rectangle. what is the lengt

NeX [460]

If Ms. Callahan has 24 feet of fencing, and she is building a pen, the PERIMETER of the pen must be 24 feet. The perimeter is basically the distance around a figure. The perimeter of a rectangle is equal to length plus width plus length plus width, AKA l+w+l+w, or P=2l+2w. In a rectangle, two pairs of sides are of equal length--so the two lengths and the two widths must be equal.

So, the formula is P=2l+2w. P, the perimeter, is 24, so 24=2l+2w. Let's try some values for l and see what we get for w. If the length is 1, l=1. 24=(2*1)+2w. 24=2+2w. 22=2w. w=11. So if length is 1 foot, width is 11 feet.

What if l=2? 24=(2*2)+2w. 24=4+2w. 2w=20. w=10. If l=2, w=10. And l=3? 24=(2*3)+2w. 24=6+2w. 18=2w. w=9. If l=3, w=9. Do you see a pattern? Every time we add 1 to l, we subtract 1 from w. So if l=4, w=8. If l=5, w=7. If l=6, w=6. Here, we start getting similar answers: if l=7, w=5. If l=8, w=4. Since we already know these values work, it doesn't matter whether we call it length or width. So, our answers are below.

Answer: Ms Callahan can make a pen with a length of 1 foot and a width of 11 feet, a length of 2 feet and a width of 10 feet, a length of 3 feet and a width of 9 feet, a length of 4 feet and a width of 8 feet, a length of 5 feet and a width of 7 feet, or a length of 6 feet and a width of 6 feet.

6 0

3 years ago

Work out the percentage increase from 120 to 540 Your final line must say ...%

Rasek [7]

Answer:

350%

Step-by-step explanation:

540 - 120 = 420

420/120 = 3.5

3.5 × 100 = 350%

5 0

3 years ago