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Ira Lisetskai [31]

3 years ago

8

In mrs.baes class only 15 boys go to the bathroom at a time 13 girls at a time.there is 50 boys and 20 girls how boys altogeter

and how many girls altogeter.

1 answer:

Stella [2.4K]3 years ago

5 0

70 kids altogether because 50+20 is 70

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Jace receives a shipment of 700

ArbitrLikvidat [17]

So set up as a proportion. 2/25 = x/700

Cross multiply and solve for x.

25x =1400
X = 56

8 0

3 years ago

What is the energy of an object has due to it’s motion is called wat

Snowcat [4.5K]

Answer:

The correct answer is Kinetic Energy

Step-by-step explanation:

From conservation of energy a body at rest posses energy called Potential Energy under which it acquired at particular position of the body i.e at rest

Then as soon body starts moving with a certain speed "v" there is conservation of energy from Potential energy to Kinetic energy given as product of a half with mass of the body and square of its velocity.

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3 years ago

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Irina18 [472]

The answer can't be C or D because the unit of volume is always cubed. The formula for volume of cylinder is (pi)(r^2)(h) . The pi(r^2) part is the formula for area of a circle which is what the base of the cylinder is. Fortunately the area is already given as 28.2. Plug that into the volume formula and plug in 3.1 for the height and multiply. I get 87.42 and the answer choice B seems to be the closest option

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4 years ago

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If f(x) =sq. root of x+3 , what is the equation for f–1(x)?

pashok25 [27]

A) You can get this by switching the x and y values and then solving for y.

3 0

4 years ago

A leprechaun places a magic penny under a girl's pillow. The next night there are 2 magic pennies under her pillow. The followi

vfiekz [6]

Answer:

34

Step-by-step explanation:

Since the pennies need to be kept under the pillow in order to be doubled, we're really looking for the day the girl will wake up with 5 billion pennies under her pillow.

The general formula of that geometric sequence will be: t = 1 + 2^(n-1)

We need to find the value of n when t will be over 5,000,000,000.

So, the equation becomes:

5,000,000,001 = 1 + 2^(n-1)

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(n-1) * log(2) = log(5,000,000,000)

n-1 = log(5,000,000,000) / log(2)

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Since it has to be complete days, and we have to reach over 5 billion, then we round it up to 34.

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3 years ago