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3 years ago

Bob can cut through a log in two minutes. How long will it take Bob to cut a 20 foot in 2 sections?

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

4 0

It’ll take him 18 minutes

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BRAINLIEST IF ANSWER PLS ASAP

Darya [45]

Answer:

336

Step-by-step explanation:

area of a triangle formula is 1/2b*h. so its 48. then u mutiiply that 4 and add the area of the bottom square (144)

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3 years ago

Heyyy.... can someone help plz thx

blagie [28]

Answer:

When a point gets reflected across the x-axis, the sign of its y-coordinate changes so the coordinates of Q' are (3, 4).

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3 years ago

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What is the square roots of 9

Lyrx [107]

Answer:

(x-3) and (x+3) I think

Step-by-step explanation:

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3 years ago

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A cone shaped paper water cup has a height of 12 cm and a radius of 6 cm. If the cup is filled with water to half its height, wh

monitta

Answer:

The portion of the volume of the cup that is filled with water is $\frac{1}{8}$

Step-by-step explanation:

step 1

Find the volume of the paper water cup

The volume of the cone is equal to

$V=\frac{1}{3}\pi r^{2}h$

we have

$r=6\ cm$

$h=12\ cm$

substitute

$V=\frac{1}{3}\pi (6)^{2}(12)$

$V=144\pi\ cm^{3}$

step 2

If the cup is filled with water to half its height, find out what portion of the volume of the cup is filled with water

Remember that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

In this problem the similar cone has half the height of the complete cone

The scale factor is equal to 1/2

therefore

The volume of the cup that is filled with water is equal to the volume of the complete cup by the scale factor elevated to the cube

$V=(1/2)^{3}(144\pi)=(1/8)144\pi\ cm^{3}$

therefore

The portion of the volume of the cup that is filled with water is

$\frac{1}{8}$

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2 years ago

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the average of two numbers is 34. The second number is three times the first number. What are the two numbers?

zvonat [6]

Hey!To solve this problem, we need to set up two equations and use the system of equations to solve.

Let x be the first number.
Let y be the second number.

(x + y) ÷ 2 = 34
x = 3y

Now, we can use substitution to solve.

(3y + y) ÷ 2 = 34
4y ÷ 2 = 34
2y = 34
y = 17

Now, you plug the value of y in the equation to solve for x.

x = 3*17
x = 51
hope this helps!!

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3 years ago

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