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alisha [4.7K]
3 years ago
11

Find the whole number 50% of what number is 45?

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
4 0
Is/of=%100
45/x=50%/100
the answer is 90.
ankoles [38]3 years ago
4 0
50%x 45=45x2

45x2=90

Hope this helps.
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Y=6-x In this case, what would be the slope and y-intercept? I'm having a hard time trying to get it to the y=mx+b format.
frutty [35]

Answer:

Slope = \frac{-1}{1} or -1

y = 6

Step-by-step explanation:

The equation given (y = 6 - x) is the same as saying

y = -1x + 6

Since we have a negative x variable and a positive 6 and would also be graphed the same. The only difference is that the second equation I just mentioned resembles the y = mx + b expression more. In this case the slope would be

Slope = \frac{-1}{1} or -1

While the y-intercept would be

y = 6 - x

y = 6 - 0

y = 6

4 0
2 years ago
What is the solution set for the given inequality if the replacement set for r is {5, 6, 7, 8, 9, 10}?
Sophie [7]
Hi there! The answer is B.

5r \leqslant 6r - 8
Subtract 6r from both sides.

- r \leqslant  - 8
Divide both sides of the inequality by -1. Remember that dividing by a negative makes the sign flip.

r \geqslant 8
Therefore, the solution must be bigger than or equal to 8. From the given solution set, the answer is B. {8, 9, 10}

~ Hope this helps you!

3 0
3 years ago
The lifetime of a machine part has a continuous distribution on the interval​ (0, 50​) with probability density function​ f, whe
Strike441 [17]

Answer:

Probability that the lifetime of the machine part is less than 13 = 0.6782

Step-by-step explanation:

given that f(x)=(10+x)^{-2}

Normalizing the function we get

\int_{0 }^{50}cf(x)dx=1

\int_{0 }^{50}c(10+x)^{-2}dx=1

\therefore a=\frac{1}{\int_{0 }^{50}(10+x)^{-2}dx}

\therefore a=12

P(x< 13)=\int_{0}^{13}12(10+x)^{-2}dx\\\\P(X< 13)=0.6782

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3 years ago
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a_sh-v [17]

Answer:

= 3 ^ 2 + = 1 4

Step-by-step explanation:

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3 years ago
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lina2011 [118]
13 boxes and there will be 1/4 of a box left over
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3 years ago
Read 2 more answers
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