2 years ago

Use an inequality symbol to compare -3 +7____-10-2

Mathematics

1 answer:

Damm [24]2 years ago

7 0

Answer:

-3+7 > -10-2

Step-by-step explanation:

-3+7 = +4

-10-2 = -12

∴ +4 > -12

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If 9% of a number equals 10, find 90% of that number.

Levart [38]

Answer:

100

Step-by-step explanation:

In this problem 10 represents 9% of a number. So, to find 90% you must multiply 10 by 10. You do this because 9% times 10 equals 90%; therefore, 100 must be 90%.

This can also be proven through cross multiplication. To set up a proportion put the percent over the number like, $\frac{9}{10}=\frac{90}{x}$ . Then cross multiply to get the equation, $9x=900$ . Finally, divide both sides to get x=100.