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2 years ago

Can somebody plz help answer the questions correctly (only if u know how to do this) lol thanks :)

Mathematics

2 answers:

nirvana33 [79]2 years ago

4 0

Just do the opposite of what the sign tells you to do. 24-26 are the same thing as 21-23 just in a different format.

Mumz [18]2 years ago

3 0

Answer:

21) y/4=3

multiply 4 to each side

y = 12

22) y/6=7

multiply 6 to each side

y = 42

For 23 - 26 its the same prosses as the first two

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What is 2+2-1x15+3. Help!!

FrozenT [24]

$2 + 2 - 1 \times 15 + 3 =$
-8

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2 years ago

2. A book with a green sticker costs $2 less than half the price of a

Damm [24]

For this case we can propose an equation that will allow us to find the price of one of the books knowing the price of the other.

x: Let the variable that represents the price of the book with a green sticker

y: Let the variable that represents the price of the book with a yellow sticker

According to the statement we have:

$x = \frac {y} {2} -2\\$

$y=2(x+2)$

Finally, we can substitute the price of one of the books and clear the value of the other as the case may be.

Answer:

$x = \frac {y} {2} -2$

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2 years ago

Find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of π.)

laila [671]

$\bf \textit{area of a circle}\\\\
A=\pi r^2\quad 
\begin{cases}
r=radius\\
-----\\
A=452.16
\end{cases}\implies 452.16=\pi r^2\implies \cfrac{452.16}{\pi }=r^2
\\\\\\
\boxed{\sqrt{\cfrac{452.16}{\pi }}=r}\\\\
-------------------------------\\\\
\textit{circumference of a circle}\\\\
C=2\pi r\qquad \qquad \implies C=2\pi \left( \boxed{\sqrt{\cfrac{452.16}{\pi }}} \right)$

so, is just that product, recall to use "<span>3.1416 as the value of π".</span>

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2 years ago

What us the average rate of change

Pepsi [2]

the rate of change is -2 for every set shown in the chart on the right

so 6 to 7 would be -11 -2 = -13

7 to 8 would be -13-2 = -15

8 to 9 = -15-2 = -17

B is the answer

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3 years ago

A bag contains 3 white marbles, 2 black marbles, and 5 red marbles. Find the probability of picking a red marble

likoan [24]

Answer:

the probability is 50%

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3 years ago

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