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3 years ago

7

Lisa and Valerie are picnicking in Trough Creek State Park in Pennsylvania. Lisa has brought a salad that she made with 3/4 cup

of strawberries, 7/8 cup of peaches, and 1/6 cup of blueberries. About how many total cups of fruit are in the salad?

1 answer:

Vesnalui [34]3 years ago

8 0

Multipy 3 by 6 multiply 1 by 4 and 7 by 4 then add the numbers

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3 years ago

These two Scalene triangles are similar with a scale of 5:2. What is true about these figures?

Ostrovityanka [42]

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3 years ago

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Please any one help me

ivolga24 [154]

Answer:

k=30

Step-by-step explanation:

The formula for calculating the mean from a frequency table is:

$\displaystyle \overline{x} = \frac{ \sum \: fx}{ \sum f}$

we have

$\sum f = 30$
$\sum f x= 120 + 3k$
$\overline{x} = 7$

So our equation is

$\displaystyle 7= \frac{ 120 + 3k}{30} \\ \implies \dfrac{120 + 3k}{30} = 7$

Solving the equation yields:

$\implies 120 + 3k = 210 \\ \implies 3k = 90 \\ \implies \boxed{k = 30}$

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2 years ago

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