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3 years ago

If 50 is 80% , then how many percent is 38 ?

Mathematics

1 answer:

Oksanka [162]3 years ago

4 0

Answer: 1.64

Step-by-step explanation:

80% = 50

20% = 12.5

100% = 62.5

38% = 1.64

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Solve the equation. 2.5 = 0 - (-20) 0-17.5 0-22.5 O 22.5 0 17.5

Nikolay [14]

Answer:

Step-by-step explanation:Simplifying

0 = 2.5y + -20

Reorder the terms:

0 = -20 + 2.5y

Solving

0 = -20 + 2.5y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-2.5y' to each side of the equation.

0 + -2.5y = -20 + 2.5y + -2.5y

Remove the zero:

-2.5y = -20 + 2.5y + -2.5y

Combine like terms: 2.5y + -2.5y = 0.0

-2.5y = -20 + 0.0

-2.5y = -20

Divide each side by '-2.5'.

y = 8

Simplifying

y = 8

SO the answer is y=8 I think srry if i get it wrong

3 0

3 years ago

In the country of United States of Heightlandia, the height measurements of ten-year-old children are approximately normally dis

Softa [21]

Answer:

$P(49.5$

$P(-1.192$

Step-by-step explanation:

We define X the random variable that represent the heights of a population for ten year old children, and for this case we know the distribution for X is given by:

$X \sim N(55.7,5.2)$

Where $\mu=55.7$ and $\sigma=5.2$

We want to find this probability:

$P(49.5$

We can use the z score formula to solve this problem given by:

$z=\frac{x-\mu}{\sigma}$

Using this formula we have:

$P(49.5$

And we can find this probability with this difference

$P(-1.192$

We can use tables for the normal standard distribution, excel or a calculator and we got this

$P(-1.192$

4 0

4 years ago

1/3+1/3x+8/3=-1/3(6x+11)

ivann1987 [24]

Answer:

x=-20/7 or -2.857

Step-by-step explanation:

bring like terms together in each side of the = side

then work the out

3 0

3 years ago

What does this mean I'm helping my cousin I dont know what this is a rectangle by what part

Fynjy0 [20]

Answer:

This is an 8 by 4 triangle

Step-by-step explanation:

It was asking for the dimensions of the rectangle

5 0

3 years ago

Every integer is a divisor of itself. A proper divisor of an integer means a positive divisor other than the integer itself. For

sattari [20]

The answer is 12
1x12 2x6 3x4
1+2+6+3+4=16

3 0

3 years ago