MATHEMATICS HIGH SCHOOL

If 30 percent of a numbers equlas 8 find 90 percent of that number

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

So 30% of the a number is 8.

Lets call this number x

So we write this down as 30/100 of X=8

by cross multiplying you get X=26.67

So 90/100 of 26.67=24.003

You can choose to write both your answers as fractions if you are not allowed to use decimals!

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How many times larger is 220 than 22

Answers

Its 10 because 10 * 22 = 220

What two numbers add to make 36 with one of the numbers being exactly twice the other? smaller number = and larger number =

Answers

Answer:

Smaller number = 12

Larger number = 24

Step-by-step explanation:

Let's call X the smallest number, while Y is the largest number.

In this case, Y = 2X

The equation that represents the given case is,

X + Y = 36

But being Y = 2X we substitute in the equation, obtaining ...

X + 2X = 36

Now we add the X ...

3X = 36

We isolate the X to know its value ...

$x=(36)/(3)$

X = 12

Now we calculate the value of Y ...

Y = 2X

Y = 2 (12)

Y = 24

Smaller number = 12

Larger number = 24

Both conditions are met:

(1) The largest number is twice the smallest number: 12 * 2 = 24

(2) The sum of the two numbers is 36: 12 + 24 = 36

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Hope this helps!

12 and 24
The equation is 2x + x =36
So 3x = 36
Then divide each side by 3
So x =12
That is the smaller number
Multiply it by 2 to get the bigger number since it's twice the number

Ronnie wants to buy a computer table that measures 10 feet by 17 feet. The of the table is $16 per square feet. How much will it cost Ronnie to buy the computer table for his study room?

Answers

It will cost her 1,710 dollars because 10 times 17 is 170 and 170 times 16 is $1,710
and i hope this answer helps :) :D :)

Find the values of x and y.

Answers

Angles in a triangle may or may not be congruent.

The values of x and y are 90 and 47, respectively.

From the figure, we have:

$\mathbf{AD \perp BC}$

This means that, angle x is a right-angle.

So, we have:

$\mathbf{x = 90}$

Triangle ABC is an isosceles triangle.

So, we have:

$\mathbf{\angle B = \angle C = 47}$

The measure of y is then calculated as:

$\mathbf{y + \angle B + x = 180}$ --- sum of angles in a triangle

This gives

$\mathbf{y + 47 + 90 = 180}$

$\mathbf{y + 137 = 180}$

Subtract 137 from both sides

$\mathbf{137 = 43}$

Hence, the values of x and y are 90 and 47, respectively.

Answers

The larger number is: 36
The smaller number is: 24

Firstly, if a number is 12 more than the other, that means that the difference between the two numbers is 12

If you divide 60 by 2, you get two 30's. Then, if you add 6 to one of the 30's and then subtract 6 to the other 30, resulting in 36 and 24, you get set of numbers which equal 60 and also have a difference of 12.

Mr. juan is three times old as his son eric. sum of their ages is 64. how old are they?