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3 years ago

What is 25% of 24? What is 15% of 60? 9 is what percent of 72

Mathematics

1 answer:

JulsSmile [24]3 years ago

7 0

Answer:

6.48

Step-by-step explanation:

this is the easiest way to solve for percentage:

$\frac{part}{whole} =\frac{part}{whole}$ Where all the percents (except 100) would go in part

and the whole number would go in whole

$\frac{25}{100} =\frac{?}{24}$ Then multiply 24 × 25 ÷ 100 = 6

$\frac{15}{100} =\frac{?}{60}$ Multiply 60 by 25 then divided by 100 = 9

Then for the last one 9 is what percent of 72

all we have to do is multiply 9 and then convert 72 into a decimal (0.72)

Then 9 × 0.72 = 6.48

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Please help! No links please! Will give brainliest to correct person!!

____ [38]

Answer:

About 50.14 Centimeters

Step-by-step explanation:

The formula for the volume of a cylinder is:

$\pi(r^2)h$

Now, let's plug in the values. (We'll use 3.14 for pi.)

$3.14(r^2)76 = 600,000$

All we do now, is solve for r. Divide 76 on both sides...

$3.14(r^2) = 7894.74$

Divide 3.14 on both sides...

$r^2 = 2514.25$

Lastly, find the square root on both sides.

$\sqrt{r^2} = \sqrt{2514.25}$

$r = 50.14$

Therefore, the r, or the radius, is around 50.14 centimeters. Hope this helps!

7 0

3 years ago

Label each statement as true or false regarding the zeros/roots of a quadratic function. The roots zeros of a quadratic function

ikadub [295]

Answer:

True, false, true, true.

Step-by-step explanation:

The roots zeros of a quadratic function are the same as the factors of the quadratic function. This is true because your roots are your factors—>(x-3) is a factor, x=3 is the root.

The roots zeros are the spots where the quadratic function intersects with the y-axis. No! Those are called y-intercepts!

The roots zeros are the spots where the quadratic function intersects with the x-axis. True. X-intercepts are your solutions. (x-3) graphed would the (3,0). That’s a solution.

There are not always two roots/zeros of a quadratic function, True. No solution would be when your quadratic doesn’t intersect the x-axis. One solution would be when your vertex would be on the x-axis. Two solutions is when your quadratic intersects the x-axis twice. Can there be infinite solutions? No. It’s either 0, 1, or 2 solutions.

6 0

3 years ago

If you can buy 1⁄3 of a pound of salami for 5 dollars, how much can you purchase for 9 dollars? Write your answer as a fraction

Degger [83]

Use this formula:

$5 = $9 then cross multiply 5x= 0.33 x 9
____ _____ You get 5x = 2.97 pounds
<span>0.33 pounds X pounds</span> Then you solve for X.
Divide both sides by 5.
You get 0.594 pounds. Written as a fraction it becomes 59/100 or simply 6/10.

3 0

3 years ago

Solve: 2/3x - 3/4 = 5 + 5/6x

Slav-nsk [51]

Answer:

$\large\boxed{x=-\dfrac{69}{2}\to x=-34\dfrac{1}{2}\to x=-34.5}$

Step-by-step explanation:

$\dfrac{2}{3}x-\dfrac{3}{4}=5+\dfrac{5}{6}x\qquad\text{multiply both sides by LCD = 12}\\\\12\!\!\!\!\!\diagup^4\cdot\dfrac{2}{3\!\!\!\!\diagup_1}x-12\!\!\!\!\!\diagup^3\cdot\dfrac{3}{4\!\!\!\diagup_1}=(12)(5)+12\!\!\!\!\!\diagup^2\cdot\dfrac{5}{6\!\!\!\diagup_1}x\\\\(4)(2x)-(3)(3)=60+(2)(5x)\\\\8x-9=60+10x\qquad\text{add 9 to both sides}\\\\8x-9+9=60+9+10x\\\\8x=69+10x\qquad\text{subtract}\ 10x\ \text{from both sides}\\\\8x-10x=69+10x-10x\\\\-2x=69\qquad\text{divide both sides by (-2)}\\\\x=-\dfrac{69}{2}$

7 0

4 years ago

1 5/2 as a whole number

SVEN [57.7K]

Answer:

3 1/2

Step-by-step explanation:

7 0

3 years ago