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2 years ago

12

After buying school lunch, Terry has $4.40 left. If school lunch costs $2.50, how much did Terry have before he bought school lu

nch?

2 answers:

Aneli [31]2 years ago

4 0

Answer:

$6.90...................

BabaBlast [244]2 years ago

4 0

Answer; 6.90 around there

Step-by-step explanation:

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3 years ago

it takes 1/2 of a box of nails to build a bird house if you wanted to build 5 bird houses how many boxes would you need

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What place value does 6 have in 12.6?

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3 years ago

Helen has 48 cubic inches of clay to make a solid square right pyramid with a base edge measuring 6 inches. Which is the slant h

Nikitich [7]

Answer: 5 inches

Step-by-step explanation:

Given: Volume of clay = 48 cubic inches

If we make a solid square right pyramid with a base edge a= 6 inches.

Then its base area = $a^2=6^2=36\ inches^2$

we know that volume of square right pyramid= $\frac{1}{3}\times\ a^2h$

Therefore, volume of square right pyramid made by all of clay= $\frac{1}{3}\times\ a^2h$ =48 cubic inches

$\Rightarrow\frac{1}{3}\times\ (36)\times\ h=48\\\Rightarrow12h=48\\\Rightarrow\ h=4\ inches.....\text{[Divide 12 on both sides]}$

Now, slant height $l=\sqrt{(\frac{a}{2})^2+h^2}$

$\\\Rightarrow\ l=\sqrt{3^2+4^2}\\\Rightarrow\ l=\sqrt{9+16}\\\rightarrow\ l=\sqrt{25}\\\Rightarrow\ l=5$

The slant height of the pyramid if Helen uses all the clay=5 inches

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3 years ago

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