what is the value of the expression below when c=5 and d=4?
6c² -5d + 8
A 48
B 79
C 138
D 888

Answer:

50 students in total or X=50

Step-by-step explanation: 12 is 24% of X

We can make this into a box-like figure

12  24

X   100          X is the missing number

We then multiply 12 by 100 which equals to 1,200.

We then divided the 1,200 by 24, this results in your X which equals to 50.

X=50 students

Answer:

In mih's school there are 100 boys

While in Ella's school there are 80 boys

Step-by-step explanation:

X*1/5=20

X=100

X*1/4=20

X=80

Answer:

Step-by-step explanation:

y < 3

<__|__|__|__|__|__°__|__|__|__>

   -2   -1   0   1    2   3   4   5   6

Basically, for the number line, there is an open circle on the 3 and the line goes to the left of 3.

Answer:

0.0537634409. This is your answer.....

Hope it helps!!!!!

Answer:

465 divide 25  = 18.6

25 divide 465 is 0.05347634

Step-by-step explanation:

Answer:

It will take 24 minutes before they are on the same problem.

Step-by-step explanation:

Caroline is on number 12 and can solve 1 math problem in 1.5 minutes.

Per minute, she solved [tex]\frac{1}{1.5} = \frac{2}{3}[/tex] of a problem. So, after t minutes, she will be on the problem:

[tex]Ca(t) = 12 + \frac{2t}{3}[/tex]

Chase is on number 16 and can solve 1 math problem in 2 minutes.

Per minute, he solved [tex]\frac{1}{2}[/tex] of a problem. So, after t minutes, he will be on the problem:

[tex]Ch(t) = 16 + \frac{t}{2}[/tex]

How many minutes will it take before they are on the same problem?​

This is t for which:

[tex]Ca(t) = Ch(t)[/tex]

So

[tex]12 + \frac{2t}{3} = 16 + \frac{t}{2}[/tex]

[tex]\frac{2t}{3} - \frac{t}{2} = 4[/tex]

[tex]\frac{4t-3t}{6} = 4[/tex]

[tex]\frac{t}{6} = 4[/tex]

[tex]t = 24[/tex]

It will take 24 minutes before they are on the same problem.

Answer:

Step-by-step explanation:

3(x+2) = 15

X+2 = 5

X = 3

Answer:

6:25:9

Step-by-step explanation:

12:50:18

6:25:9

I think the question is asking for the ratio to be simplified, if so then that's what the answer is.

Answer:

75

Step-by-step explanation:

12 : 50 :: 18 : x

In proportion, Product of extremes  = Product of means

                       12 * x = 50*18

                             [tex]x =\frac{50*18}{12}=\frac{50*3}{2}[/tex]

                             x = 25 * 3 = 75

Given:

A figure of dilation and the center of dilation is O.

To find:

The value of y.

Solution:

The distance between center and vertex of image (d') is proportional to the distance between center and the corresponding vertex of original figure (d).

[tex]d'\propto d[/tex]

[tex]d'=kd[/tex]

[tex]\dfrac{d'}{d}=k[/tex]

Where, k is the scale factor or constant of proportionality.

So, the scale factor for the given dilation is

[tex]k=\dfrac{OB'}{OB}[/tex]

[tex]k=\dfrac{36}{16}[/tex]

[tex]k=\dfrac{9}{4}[/tex]

We know that,

[tex]k=\dfrac{\text{Side length of image}}{\text{Corresponding side length of original figure}}[/tex]

[tex]\dfrac{9}{4}=\dfrac{A'C'}{AC}[/tex]

[tex]\dfrac{9}{4}=\dfrac{27}{y}[/tex]

[tex]9\times y=27\times 4[/tex]

Divide both sides by 9.

[tex]y=\dfrac{27\times 4}{9}[/tex]

[tex]y=3\times 4[/tex]

[tex]y=12[/tex]

Therefore, the value of y is 12.

Answer:

The school has 6 periods a day needs 1 hour for each.

Step-by-step explanation:

8 period =45×8=360 minute

6 perod =360/6=60minute

Answer:  $12.80

Step-by-step explanation:

:)

Answer:

$12.80 donated money if she bikes 8 miles. solved by finding out how much money she'll get in a mile add .80+.80 and get $1.60. this is way easier to set up equation instead if doing it by half mile. equation is y=1.6(x) // y is money donated, x is $1.60

Answer:

57

Step-by-step explanation:

Answer:

I think (25, 20) is your answer. hope it helps.

The equivalent ratio to (5, 4) is (25, 20). Therefore, option C is the correct answer.

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

The coordinates from graph are (5, 4), (10, 8), (15, 12) and (20, 16).

Equivalent ratios are ratios that can be simplified to the same value by dividing both the values by a common fraction.

Here,

(5, 4)=5(5, 4)=(25, 20)

(10, 8)=2(10, 8)=(20, 16)

(15, 12)=2(15, 12)=(30, 24)

(20, 16)

The equivalent ratio to (5, 4) is (25, 20). Therefore, option C is the correct answer.

To learn more about the ratio visit:

brainly.com/question/13419413.

#SPJ2

Answer:

6

Step-by-step explanation:

W=L-2

A=L*W

48=L(L-2)

48=L^2-2L

You factor and then you get L=8

W=8-2=6

Answer:

F=Mxa

Step-by-step explanation:

Therefore, Mass of 40kg x 10ms² = 400N

Answer:

No i don't know needed the point bye

Step-by-step explanation:

Answer:

square = a=x^2 x= one of the sides of the square

triangle= a[tex]=\frac{1}{2}bh[/tex] b=base h=height

circle = a=πr² π = pi r=radius

rectangle a = l * w l=length w=width

Step-by-step explanation:

hope this helps (:

Answer:

Step-by-step explanation:

∠VMC=180-90-48

          =42

∠PMV=180-22-90-42

         =26

5/sin48=VM/sin90

VM=6.728( correct to three decimal places)

6.728/sin22=PV/sin26

PV=7.873( correct to three decimal places)

Answer:

d)550

15 * 10 = 150; 150 * 2 = 300

5 * 10 = 50; 50 * 2 = 100

5 * 15 = 75; 75 * 2 = 150

300 + 100 + 150 = 550

it is 2/6

you add all the marbles to the bottom and the yellow to the top

F(5) would be the y value of where the line is when it is at x 5

The line crosses at -6.5

F(5) = -6.5

Answer:

adventure

Step-by-step explanation:

Answer:

adventure

Step-by-step explanation:

Answer:

1 hour and 36 minutes

Step-by-step explanation:

Answer:

2/5

the denominator is five because it says that there is five equal portions of the spinner. The numerator is too because you are trying to find the odds of getting two colors

Answer:

5/11

Step-by-step explanation:

35 to 77 simplified is 5/11

35 ÷ 7

---------

77 ÷ 7

Therefore, 35/77 simplified to lowest terms is 5/11.

Hope that helps

And if wrong sorry

[tex] \frac{95}{100} \times 420 = 399[/tex]

Answer:

I can't see the table...?

Step-by-step explanation:

I will answer if you have the table.

Answer:

28.5

Step-by-step explanation:

Answer:

25.5 in^2

Step-by-step explanation:

the formula to calculate a trapezoid is (base 1 + base 2) * height/2

So, (8+11)*3/2

17*3/2

51/2

25.5