3 years ago

Need help with these problem, I really need help, thanks.

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

5 0

28. 20 cookies= 6 ounces
?=15 ounces
(20*15)/6 = 300/6 = 50 cookies

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PLEASE HELP FAST

IceJOKER [234]

Answer: x = 10

Will give steps in comments since you need this answer FAST

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3 years ago

A broken faucet leaks 1 gallon of water every 1 and1/3 months the amount of months that pass m varies directly with the amount o

Simora [160]

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\$

$\bf \textit{\underline{m} varies directly with the amount of gallons}\implies \stackrel{months}{m}=k\stackrel{gallons}{g}
\\\\\\
\textit{we also know that }
\begin{cases}
m=1\frac{1}{3}\\
\qquad \frac{4}{3}\\
g=1
\end{cases}\implies \cfrac{4}{3}=k1\implies \cfrac{4}{3}=k
\\\\\\
\boxed{m=\cfrac{4}{3}g}\\\\
-------------------------------\\\\
\textit{what's \underline{m} when g=7?}\qquad m=\cfrac{4}{3}\cdot 7\implies m=\cfrac{28}{3}\implies m=9\frac{1}{3}$

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3 years ago

What is 5 -( -9) = ?

aleksandr82 [10.1K]

14 because a negative minus a negative is a positive; you add a line and change the sign

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3 years ago

Read 2 more answers

Penny reads 11 pages in 1/3 hour. How many pages does she read per hour?

dolphi86 [110]

Answer:

33 pages per hour