A middle school has 1200 students. The ratio of boys to girls is 5 to 4. How many girls
are there at the middle school?
A) 1500
B) 960
C) 667
D) 533

Answer:

the ans is 5 I think only

Answer:

The effect of doubling the diameter is increased the area to paint as 4 times. So, paint needed is 4 times than it was before. And the area is increased by 9 times when the diameter is increased by a factor of 3. So, paint needed is 9 times than before.

Step-by-step explanation:

Please remember the concept

If side lengths are in the ratio a : b

Then the area are in the ratio of a^2 :b^2

The volume are in the ratio of a^3 :b^3,

When diameter is doubled, the area ratio becomes [tex]x^{2} :(2x)^{2}[/tex] which is simplified to [tex]x^{2} :4x^{2}[/tex]

So, the area is increased by 4 times.

According to this concept , the diameter is increased by the scale factor 3.

Let the diameter of tank is 'x', so the diameter becomes "3x"

So, it's area ratio would be [tex]x^{2} :(3x)^{2}[/tex]

If we simplify it we get [tex]x^{2} :9x^{2}[/tex]

We conclude that  area to be increased by 9 times.

Answer:

−6x+18

Step-by-step explanation:

-6(x-3)

(−6)(x+−3)

=(−6)(x)+(−6)(−3)

=−6x+18

Answer:

18 - 6x

Step-by-step explanation:

According to the distributive property:

-6(x-3) =

-6*x + -6*-3 =

-6x + 18

Answer:

y = 1x - 1

Step-by-step explanation:

[tex]\frac{y2-y1}{x2-x1}\\\frac{1-(-4)}{2-(-3)}\\\frac{1+4}{2+3}\\\frac{5}{5}=1\\y=1x+b\\1=1(2)+b\\1 = 2 + b\\-1 = b\\y = 1x-1[/tex]

Answer:

the answer is 2...........jpjpjp ion knowwwwwwwww

Step-by-step explanation:

Answer:

$3000

Step-by-step explanation:

If the remainder is spent on other costs, then that means 60% of the tuition as spent on other costs.

To find the total tuition, divide 1800 by 0.6:

1800/0.6

= 3000

So, their tuition was $3000

Answer:radius is 6,height is 4

Step-by-step explanation:

Answer:

i believe those line by it mean the opposite of so the answer would be 13

Answer:

13

Step-by-step explanation:

The absolute value is the distance of a number from 0. In this case it is 13. Hope this helps!! :)

Answer:

y = 9x/5 + 50

Step-by-step explanation:

We are represent the information as coordinate (x,y)

If the cost for an order of 100 kilograms of steel bars is $230, this is expressed as (100, 230)

Also if the cost for an order of 150 kilograms of steel bars is $320, this is expressed as;

(150, 320)

Find the equation of a line passing through the points. The standard form of the equation is expressed as y = mx+c

m is the slope

c is the intercept

Get the slope;

m = y2-y1/x2-x1

m = 320-230/150-100

m = 90/50

m = 9/5

Get the y-intercept by substituting m = 9/5 and any point say (100, 230) into the expression y = mx+c

230 = 9/5(100)+c

230 = 9(20)+c

230 = 180 + c

c = 230-180

c = 50

Get the required equation

y = mx+c

y = 9/5 x + 50

Hence an equation for the cost of an order of steel bars (y) in terms of the weight of steel bars ordered (x) is y = 9x/5 + 50

Answer: x+1 = y/2

Step-by-step explanation:

X is increasing by 1

(Adding 1 to each number)

For Y, divide it by 2

-4/2 = -2

-2/2 = -1, etc.

Answer:

-1/6

Step-by-step explanation:

im assuming you meant multiply them? if so then

1         -2            -2           -1

---   *  ---    =       ---    =    ---

3         4              12          6

or

1/3=4/12 and -2/4=-6/12

4/12*-6/12=-24/144=-1/6

Answer:

-1/6

Step-by-step explanation:

just multiply 1/3x2/4=

and then in front of the answer put the negative sign

Answer:

an 88.25

Step-by-step explanation:

well 88%

Answer:

5!60

Step-by-step explanation:

H Dr sn ldddddjjgfuyunbhhhhhp

Ljp1f

Hunt ye dzkpksnsnjfnngfhnf l dk h TL hhsinp

Answer:

You can divide and see if its devided by 3, and if its not in the times table, you will have a decimal

Step-by-step explanation:

plant rice Step-by-step explanation:

put water in bole put grass throw rice and make rice

Answer:

461 divided by 10^3 is 0.461.

Step-by-step explanation:

Hope this helps and I hope u have an Amazing day!!

Answer:

m = -8

b = 0

Step-by-step explanation:

In slope intercept form [ y = mx + b ], m = slope and b = y-intercept.

We aren't given a b value, but we are given a m value which is -8.

Best of Luck!

Answer: 8(8+3)

Step-by-step explanation:

64 + 24 is the same as 8*8 + 8*3. Therefore you can "pull out" the 8 and that is your answer

Answer:

m = 55t

t = m/55

Step-by-step explanation:

According to the formula for calculating speed expressed as;

Speed = distance/time

Given;

Distance = 55mph

required:

distance as a function of t

time as a function of distance m

If distance is m and time is t

From the formula;

55 = m/t

m = 55t

Hence the equation to solve for miles m is m = 55t

To get t, we will cross multiply from 55 = m/t;

55t = m

Divide both sides by 55

55t/55 = m/55

t = m/55

Hence the equation to solve for time in hours is t = m/55

Answer:

3.

Step-by-step explanation:

The wolves from the previous year minus 23 is 84.

2p - 3q - 4r + 6r - 2q + p = 0

2p + p - 3q - 2q - 4r + 6r = 0

3q - 5q + 2r = 0

Answer:I am pretty sure that it is that you add 26 and 71 and then subtract it by 180 and then the other one is across so it would be the same answer so it would be 83

Step-by-step explanation: I hope this helped

Answer:

4

Step-by-step explanation:

Answer:

Creo que es 40

Step-by-step explanation:

80+15x+(11x-4)=180

26x=104

x=4

Entonces

11x-4 --> 11*4-4 = 40

Answer: majic makes people foeat

Step-by-step explanation: i eat gatorade

Answer:

Pennywisee

Step-by-step explanation:

Answer:

6.5 inches

Step-by-step explanation:

you would divide 65 by 10 feet to get the answer in inches which is 6.5

Answer:

75,000 gears

Step-by-step explanation: