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2 years ago

5

Christine baked a pumpkin pie. She ate 1/6. Her brother ate 1/3 of it and gave the left overs to his friends. What fraction of t

he pie did he give to his friends ?

1 answer:

stiv31 [10]2 years ago

4 0

Answer:3/6 of the pie to friends

Step-by-step explanation:

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aniked [119]

60 slices in 5 cheesecakes. So 1 cheesecake has 12 slices. So 8 cheesecakes will have 96 slices

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2 years ago

In Hooke's law, Fspring=kΔx, what does the ∆x stand for?

zlopas [31]

Answer:

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Step-by-step explanation:

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2 years ago

The first term in a geometric series is 64 and the common ratio is 0.75. Find the sum of the first 4 terms in the series.

maks197457 [2]

Answer:

195.25

Step-by-step explanation:

Consider geometric series S(n) where initial term is a

So S(n)=a+ar^1+...ar^n

Factor out a

S(n)=a(1+r+r^2...+r^n)

Multiply by r

S(n)r=a(r+r^2+r^3...+r^n+r^n+1)

Subtract S(n) from S(n)r

Note that only 1 and rn^1 remain.

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Factor out S(n)

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The formula now shows S(n)=a(r^n+1 -1)/(r-1)

Now use the formula for the problem

4 0

2 years ago

A billboard is 27 feet high and casts a 36-foot shadow at noon. At the same time, a fir tree next to the billboard casts a 48-fo

Archy [21]

Proportion can be used to find the height = 0.75

Step-by-step explanation:

A billboard is 27 feet high and casts a 36-foot shadow at noon.

Height of billboard = 27 feet

Height of shadow of billboard = 36 feet

$\frac{\texttt{Height of billboard}}{\texttt{Height of shadow of billboard}}=\frac{27}{36}\\\\\frac{\texttt{Height of billboard}}{\texttt{Height of shadow of billboard}}=\frac{3}{4}=0.75$

A fir tree next to the billboard casts a 48-foot shadow.

Height of shadow of fir tree = 48 foot

$\texttt{Height of shadow of fir tree, H = }\frac{\texttt{Height of billboard}}{\texttt{Height of shadow of billboard}}\times 48$

Proportion can be used to find the height = 0.75

5 0

2 years ago

4x10^-6 + 6.8x10^7=

kirill115 [55]

I typed it in a calculator and got 68,000,000, so just correct me if im wrong.

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2 years ago