All categories

3 years ago

54 is 75% of what number?

1 answer:

4 0

54=0.75a

0.75 is the decimal form of 75% (75/100) and a is the missing number.

54 = 0.75a
--- ------
0.75 0.75
72 = a

54 is 75% of 72.

You might be interested in

Please solve rational inequality and express in an interval notation x-8/x+7>0

Rudik [331]

X^2+7x-8>0 eliminating denominator Factoring (x+8)(x-1) must be positive so Case 1 both positive is x>-8 and x>1. For both to occur x>1 Case 2 both are negative (x+8)<0 and (x-1)<0 so x<-8 and x<1. For both to occur x<-8 Therefore x<-8 or x>1

3 0

3 years ago

Write the standard form of the equation of the circle with endpoints of a diameter at the points (7,2) and (-9,5).

lys-0071 [83]

Answer:

$(x+1)^2 + (y- 3.5)^2 =64$

Step-by-step explanation:

We are given that endpoints of a diameter at the points (7,2) and (-9,5).

Center of the circle is the mid point of diameter

So, first find the mid point of diameter

Formula : $x=\frac{x_1+x_2}{2} , y=\frac{y_1+y_2}{2}$

$(x_1,y_1)=(7,2)\\(y_1,y_2)=(-9,5)$

Substitute the values in formula

$x=\frac{7-9}{2} , y=\frac{2+5}{2}$

$x=-1 , y=3.5$

So, center of circle = (h,k )=(-1,3.5)

To find length of diameter :

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$(x_1,y_1)=(7,2)\\(y_1,y_2)=(-9,5)$

$d=\sqrt{(-9-7)^2+(5-2)^2}$

$d=\sqrt{265}$

Length of radius = r = $\frac{Diameter}{2}=\frac{\sqrt{256}}{2}$

Standard form of the equation of the circle : $(x -h)^2 + (y- k)^2 = r^2$

(h,k )=(-1,3.5)

$r=\frac{\sqrt{256}}{2}$

Equation of the circle : $(x+1)^2 + (y- 3.5)^2 =(\frac{\sqrt{256}}{2})^2$

Equation of the circle : $(x+1)^2 + (y- 3.5)^2 =64$

Hence the standard form of the equation of the circle with endpoints of a diameter at the points (7,2) and (-9,5) is $(x+1)^2 + (y- 3.5)^2 =64$

5 0

4 years ago

Which of the follwing is not a pythagorean triple 10,16 19 8,15,17 16,63,65 11,60,61

zaharov [31]

Answer:

Step-by-step explanation:

4 0

3 years ago

My question is down there

Rzqust [24]

Answer:

are 10 hours

Step-by-step explanation:

The reason its 10 hours is because on the lower right of the document it says 10.

5 0

3 years ago

Josie has 43 animal books and 29 art books. she puts all the books on 8 shelves. She puts the same number of books on each shelf

SOVA2 [1]

Answer:

Step-by-step explanation:

To find the answer, we are first going to add 43 and 29 to get 72. Now, we are going to divide 72 divided by 8 to get 9.

Hope this helps! :)

PLEASE MARK ME AS BRAINLIEST

Have a blessed day and remember to keep smiling! :)

8 0

2 years ago

Read 2 more answers