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3 years ago

Explain how to find the least common multiple of 8 and 10

Mathematics

1 answer:

Anna007 [38]3 years ago

5 0

Answer:

Step-by-step explanation:

divide eight and ten

use a number that can divide

use two

making four and five

use two again

making two and five

use two again

making one and five

now we use five

making one and one

that is

two times.two times two times five w

which is eight times five

which is fourty

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Mamont248 [21]

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A motorboat takes 5 hours to travel 200 miles going upstream. The return trip takes 4 hours going downstream. What is the rate o

dsp73

Answer:

rate of motorboat: b

rate of current: c

So the rate the boat travels upstream is $b - c$, and the rate it travels downstream is $b + c$

Step-by-step explanation:

d = rt

200 = (b - c)\cdot 5

200 = (b + c)\cdot 4

b - c = 40

b + c = 50

Adding these equations, we get:

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c = 50 - 45 = 5

Therefore the rate of the boat is 45kph, and the rate of the current is 5kph

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3 years ago

Select the property of equality used to arrive at the conclusion.

artcher [175]

Answer:

Step-by-step explanation:

The statement "If x = 3, then x^2 = 3x" was formed by multiplying x = 3 by x on both sides. Thus x = 3 becomes x*x=3*x. This simplifies to x^2 = 3x. This property is the multiplication property of equality.

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3 years ago

For the month of March in a certain city, 57% of the days are cloudy. Also in the month of March in the same city, 55% of the da

oksian1 [2.3K]

Answer: 0.9649

Step-by-step explanation:

Let A denote the event that the days are cloudy and B denotes the event that the days are rainy.

Given : For the month of March in a certain city, the probability that days are cloudy : $P(A)=0.57$

Also in the month of March in the same city,, the probability that the days are cloudy and rainy : $P(A\cap B)=0.55$

Now by using the conditional probability, the probability that a randomly selected day in March will be rainy if it is cloudy will be :-

$P(B|A)=\dfrac{P(A\cap B)}{P(A)}$

$\Rightarrow\ P(B|A)=\dfrac{0.55}{0.57}\\\\=0.964912280702\approx0.9649\ \ \text{[Rounded to four decimal places.]}$

Hence, the probability that a randomly selected day in March will be rainy if it is cloudy = 0.9649

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3 years ago

Explain how to find the least common multiple of 8 and 10￼￼

Explain how to find the least common multiple of 8 and 10