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nordsb [41]
3 years ago
7

When he doubles the first one and add on thr second he gets 17 when he triples the first one and subtract the second one he gets

18 find the two numbers
Mathematics
1 answer:
GREYUIT [131]3 years ago
4 0

Step-by-step explanation:

2A + B = 17

3A - B = 18

5A = 35, A = 7, B = 3

Hence the numbers are 7 and 3.

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If lateral surface area of cube is double then the ratio of volume of new cube to original cube ​
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Answer:

  2√2

Step-by-step explanation:

The area ratio is the square of the side length ratio, so the ratio of side lengths is √2.

The volume ratio is the cube of the side length ratio, so the new cube has a volume that is (√2)³ times that of the original.

The volume ratio is 2√2.

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A scale drawing of a playground is shown below.
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Lita has a coin with heads on one side and tails on the other side. She is going to flip it in the air three times. What is the
inysia [295]

Answer:

The probability is 1/8

Step-by-step explanation:

In this question, we are tasked with calculating that if a coin is flipped three times, we have the outcome in the question; THH

Now before we go on to calculate this probability, we need to understand some technicalities. Flipping a coin can only result into two outcomes as there are only two sides of a coin. These are the head and the tail. What this means is that if a coin is flipped, we should only expect landing on the head and on the tail.

Now these opposite sides have equal probability. This means the probability of landing on the head = probability of landing on the tail. These probabilities are equal as they are the only two options we have. Hence, the probabilities are 1/2 each

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8 0
3 years ago
Read 2 more answers
A university has 34,890 students. In a random sample of 270 students, 18 speak three or more languages. Predict the number of st
Nady [450]
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6 0
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Look at the figure and answer
andreyandreev [35.5K]

Answer:

\cos x=\dfrac{8}{f}

Step-by-step explanation:

Given that,

\tan x=\dfrac{e}{8}\\\\\sin x=\dfrac{e}{f}

We need to find the value of cos x.

We know that,

\tan\theta=\dfrac{\sin\theta}{\cos\theta}

Using the above relation,

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So, the value of cos x is equal to \dfrac{8}{f}.

7 0
3 years ago
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