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3 years ago

If you can solve 20 multiplication facts in one minute how long will it take to solve 50 facts

Mathematics

2 answers:

Ad libitum [116K]3 years ago

8 0

If you can solve 20 multiplication facts in one minute then you could solve 50 multiplication facts in 3 minutes

1 minute = 20 facts

2 minutes = 40 facts

3 minutes = 60 facts

We can check our work by doing the unit rate:

60 facts ÷ 3

____________ <--- fraction bar

3 minutes ÷ 3

= 20 facts

__________ (20 facts per minute)

1 minute

mezya [45]3 years ago

5 0

Answer:

150s or 2 min and 30 s

Step-by-step explanation:

20 facts = 1 min

10 facts = 30s

50 facts = ? min

50 / 10 = 5

30 * 5 = 150s

150s = 2 min and 30 s

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3 years ago

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Evgesh-ka [11]

Answer:

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Step-by-step explanation:

$\dfrac{1}{\sqrt{4} - \sqrt{3}} =$

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2 years ago

Write an equation for the hanger diagram and then us the sketch to show how to solve the equation algebraically.

Art [367]

Answer:

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Step-by-step explanation:

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8 0

2 years ago

LekaFEV [45]

Answer: $y-1=\dfrac32(x+3)$

Step-by-step explanation:

Slope of a line passes through (a,b) and (c,d) = $\dfrac{d-b}{c-a}$

In graph(below) given line is passing through (-2,-4) and (2,2) .

Slope of the given line passing through (-2,-4) and (2,2) = $\dfrac{-4-2}{-2-2}=\dfrac{-6}{-4}=\dfrac{3}{2}$

Since parallel lines have equal slope . That means slope of the required line would be .

Equation of a line passing through (a,b) and has slope m is given by :_

(y-b)=m(x-a)

Then, Equation of a line passing through(-3, 1) and has slope = is given by

$(y-1)=\dfrac32(x-(-3))\\\\\Rightarrow\ y-1=\dfrac32(x+3)$

Required equation: $y-1=\dfrac32(x+3)$

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2 years ago

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pochemuha

Answer
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2 years ago

Read 2 more answers