2 years ago

I need help with this

Mathematics

2 answers:

klemol [59]2 years ago

6 0

Expression: 28 - c^3 + 6

If c = 1...

28 - (1)^3 + 6

28 - 1 + 6

27 + 6

If c = 2...

28 - (2)^3 + 6

28 - 8 + 6

20 + 6

If c = 3...

28 - (3)^3 + 6

28 - 27 + 6

1 + 6

Hope this helps!

Sonja [21]2 years ago

5 0

Answer:

if c=1

then,

28-1×1×1+6=33

if c=2

then,

28-2×2×2+6=26

if c=3

then,

28-3×3×3+6=7

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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.