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3 years ago

90% of the seniors at Richmond high school will attend the school prom. If 270 seniors attend

Mathematics

1 answer:

ELEN [110]3 years ago

4 0

Answer:

243

Step-by-step explanation:

make 90% into a decimal

0.9

multiply 270 by 0.9 to get the answer of 243

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4). What is 75% of 150?

Gelneren [198K]

112.5 I believe is the right answer

7 0

3 years ago

This is really hard please help

Lana71 [14]

Answer:

p^(m+n)

Step-by-step explanation:

p^m * p^n

We know that when they are multiplied when the bases are the same, we add the exponents

p^(m+n)

4 0

3 years ago

Find the difference between8/15 and 2/3 Show all calculations in your final answer.

kherson [118]

Answer:

$\frac{8}{15}-\left(\frac{-2}{3}\right)=\frac{6}{5}$

Step-by-step explanation:

Let the value of a number 'a' be = 8/15

Let the value of a number 'b' be = 2/3

The difference between the two numbers can be calculated by subtracting the numbers

$a-b=\frac{8}{15}-\left(\frac{-2}{3}\right)$

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a$

$=\frac{8}{15}-\frac{-2}{3}$

$\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}$

$=\frac{8}{15}-\left(-\frac{2}{3}\right)$

$\mathrm{Apply\:rule}\:-\left(-a\right)=a$

$=\frac{8}{15}+\frac{2}{3}$

$\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}$

$=\frac{8+10}{15}$

$=\frac{18}{15}$

$\mathrm{Cancel\:the\:common\:factor:}\:3$

$=\frac{6}{5}$

Thus,

$\frac{8}{15}-\left(\frac{-2}{3}\right)=\frac{6}{5}$

3 0

3 years ago

The snooze buttonon your alarm clock activates the alarm every 5 minutes. The snooze button on your cell phone activates the ala

Tomtit [17]

Answer: 7:35 a. M

Step-by-step explanation:

Given that:

Snooze on alarm = 5 minutes

Snooze on cellphone = 7 minutes

If both activates at 7:00 a. M

Time at which both will activate again ;

Obtain the Lowest Common Multiple of 5 and 7

_5 __|5 ___|7

_7__ |1 ___|7

____ |1 ___| 1

Lowest common multiple = (5 * 7) = 35

Hence, both alarms will sound together again after 35 minutes = 7:00a.m + 35 minutes = 7:35 A. M

5 0

3 years ago

Find the area of the figure. Round your answer to the nearest hundredth

Ira Lisetskai [31]

Answer:

i think it's 10 but i might be wrong

Step-by-step explanation:

7 0

2 years ago

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