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3 years ago

If you buy 17 books and they cost $15 and you buy 12 magazines and they cost four dollars how much did you spend

Mathematics

1 answer:

stepan [7]3 years ago

7 0

you spent $303.

because 17 times 15 is 255. then 12 times 4 is 48.

255 plus 48 is 303.

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3 years ago

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scoundrel [369]

Answer:

Step-by-step explanation:

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3 years ago

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Tatiana [17]

Answer:

Step-by-step explanation:

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2 years ago

Which equation is the direct variation equation if f(x) varies directly with x and f(x)=-18 when x=3

Otrada [13]

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{f(x)}{y}=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
y=-18\\
x=3
\end{cases}\implies -18=k3
\\\\\\
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3 years ago

Write an equation for the description <br><br> a number x increased by 16 is 118.

noname [10]

Answer:

x +16 = 118

Step-by-step explanation:

A number(unknown ) = x

Increased = +

Merge all together you have

$x + 16 = 118$

Tip ; If you solve the equation you will get 102 as an answer. 102 +16 =118 .

SO the equation is correct .☻

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3 years ago