Someone help me please

Mathematics

1 answer:

blsea [12.9K]2 years ago

5 0

Answer: 160mi

Step-by-step explanation:

To find the area of a rectangle or that kind of shape u need to find the height and width and that would be 8mi and 20mi and of course they're the same on both side so u need to Height x Width so 8x20=160 or 20+20+20+20+20+20+20+20=160 or 8+8+8+8+8+8+8+8+8+8+8+8+8+8+8+8+8+8+8+8=160 but nobody wants to do it that way unless they absolutely have too

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4 1/2 ÷(−1 3/7 ) please help and hurry

myrzilka [38]

Hi! I'm happy to help!

To first solve this, we need to make those mixed numbers improper fractions.

To make 4 1/2 an improper fraction, you have to turn 4 into halves (multiply four by 2) then add the extra half, giving you 9/2.

$\frac{9}{2}$ ÷(−1 $\frac{3}{7}$ )

Now, we turn 1 3/7 into an improper fraction. We turn 1 into sevenths (multiply 1 by 7) then add the other 3 sevenths, giving you 10/7.

$\frac{9}{2}$ ÷(− $\frac{10}{7}$ )

From here, we need to turn this problem into a multiplication problem in order to solve. Since multiplication is the opposite of division, we need to get the opposite of something, so we use our second fraction and flip it.

$\frac{9}{2}$ ×(− $\frac{7}{10}$ )