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1 year ago

Dominic has 12 children. he bought pizza for his kids. If each child ate 1/3 of pizza, how many pizzas did Dominic need to buy

Mathematics

1 answer:

Kazeer [188]1 year ago

7 0

Answer:

Step-by-step explanation:

If each of 12 kids ate 1/3 of a pizza, the amount eaten was ...

12 × 1/3 pizza = 12/3 pizza = 4 pizza

Dominic needed to buy 4 pizzas.

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$\bf \qquad \qquad \textit{ratio relations}
\\\\
\begin{array}{ccccllll}
&\stackrel{ratio~of~the}{Sides}&\stackrel{ratio~of~the}{Areas}&\stackrel{ratio~of~the}{Volumes}\\
&-----&-----&-----\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3}
\end{array}\\\\
-----------------------------$

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-------------------------------\\\\
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3 years ago

Find the 13th term of the arithmetic sequence whose common difference is d=7 and whose first term is a1=-3

timama [110]

Answer:

Step-by-step explanation:

the formula for an arithmetic sequence:

aₙ = a₁ + (n-1)d

where aₙ = the nth term

a₁ = the 1st term = -3

n = the term number = 13

d = the common difference = 7

Plugging in those values into the formula to find a₁₃:

a₁₃ = -3 + (13-1)7

= -3 + (12)7

= -3 + 84

= 81

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