The ratio of boys to girls in Ella’s grade is 3 to 4. The ratio of boys to girls in Minh’s grade is 4 to 5. Each grade has a total of 20 girls.

Answers

Answer 1

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


Related Questions

4
74
Solve the inequality 2(4x + 1) <3(2x - 3)

Answers

Step-by-step explanation:

2(4x + 1) < 3(2x - 3)

8x + 2 < 6x - 9

8x - 6x < -9 -2

2x < -11

x < -11/2

To the nearest 10th, find the measure of the missing side.

Answers

Answer:

Climate change includes both global warming driven by human emissions of greenhouse gases, and the resulting large-scale shifts in weather patterns.

solve the equation. simplify your answer. 2x(x-4)-3(x+5)=x(1-x)-16

Answers

Answer:

x=6+√33/3,6−√33/3

Step-by-step explanation:

hope this helps

It is known that 40% of adult workers have a high school diploma. If a random sample of 10 adult workers is selected, what is the expected number of adult workers with a high school diploma?

Answers

Answer:

The expected number of adult workers with a high school diploma is 4 out of 10

Step-by-step explanation:

4 out of 10 = 40%

Your math teacher tells you that the next test is worth 100 points and contains 38 problems. Multiple-choice questions are worth 2 points each and word problems are worth 5 points. How many of each type of question are there?​

Answers

If we assume that
x isthe number of multiple choice questions, and y is the number of word problems, we can write a system of equations like:
{ x + y = 38
{ 2x + 5y = 100

If we multiply the first equation by -2 we get:
{ -2x-2y = -76
{ 2x + 5y = 100

Now if we add both equations we get only equation with 1 unknown (y) :

3y = 24 ⇒ y = 8

Substituting the calculated value to the first equation we get:

x + 8 = 38 ⇒ x = 30

The solution:
{ x = 30
{ y = 8

means that:
The test had 30 multiple choice questions, and 8 word problems.

Bertie Beetke Walks so that he is always exactly 1.3 cm. Adam and walks so that he is always exactly 3.5 cm from crumb B the only two points at which they can meet, mark the points with crosses.

Answers

Answer:

I can not give an exact solution, because I can not draw in the given image and I don't know the scale of the image, but I can give a general way of solving this.

We know that a circle is a shape such that al the points are equidistant to the center.

So, if Bertie is always exactly 1.3cm from crumb A, then all the possible positions of Bertie are shown by a circle of radius = 1.3cm around crumb A.

And if Adam is always exactly 3.5cm away from crumb B, then the possible positions of Adam are shown by a circle of radius = 3.5cm around crumb B.

So to solve this problem, you need to draw these two circles, and the points where the circles intersect each other will be the points where Bertie and Adam could meet.

Which of the following is not true?
А
371 > 9
B
27+3> 17
2
C
? <21 +4
D
5-/24< 1

Answers

Answer:

IT IS B

Just trust me ; P

Because 24 square rooted = 5.196152422706632

Now add three - 8.196152422706632

17/2 = 8.5

8.196152422706632<8.5

The answer is c I’m not to sure but I’m almost garemteed this is right

what is the correct graph

Answers

Answer:

the first one. with two shaded dots and a line between them

w is less then or equal to 7
and greater than 3

Answers

The answer could be 4,5,6, or 7.

Give brainliest?

PLZ HELP ASAP
What is the length of MN? Round your answer to the tenths.

Answers

Answer:

Can you put the picture of the triangle up

Step-by-step explanation:

I'll change my answer then

DON'T REPORT ME

Answer:

i need a picture to awnser your question

Step-by-step explanation:

Simplify this equation 3m + 4 = -5

Answers

The solution to this is m=-3

A graprfruit has a mass of 100 grams, a watermelon has a mass 4 times the mass of the grapefruit. What ia the mass of the watermelon in centigrams?

Answers

The grapefruit weighs 100g
If the watermelon weights 4 times this, we multiply by 4
100g x 4 = 400g
Watermelon = 400g
A centigram is 100th of a gram
Therefore to work out how many centigrams it is, we multiply by 100
400 x 100 = 40,000 cg

Simplify the expression (-502) square root 0

Answers

Answer:

[tex]-502\sqrt 0 = 0[/tex]

Step-by-step explanation:

Given

[tex]-502\sqrt 0[/tex]

Required

Simplify

[tex]-502\sqrt 0[/tex]

----------------------------------------

[tex]\sqrt 0 = 0[/tex]

----------------------------------------

So:

[tex]-502\sqrt 0 = -502 * 0[/tex]

[tex]-502\sqrt 0 = 0[/tex]

what is the volume Jacobs refrigerator is shown below

Answers

Answer:

Where is it ?

Step-by-step explanation:

What is the remainder when 16,055 is divided by 16? (Input numeric values only)

it can't be on a calculator
because you get the wrong number on there thenk you

Answers

Answer:56

Step-by-step explanation:

with 16 into 55 do that math then put the number you got then put it into another 16 boom 56

(2,15) (-4,-3) in standard form

Answers

Answer:

pizza

Step-by-step explanation:

... :D

The fraction form of -1.6 is

Answers

Answer:

-1  2/3

Step-by-step explanation:

Really need help on this please

Answers

Answer    (5,9)

Step-by-step explanation:

that is the answer

Find AC.

B
7x6
6x +4

Answers

Answer:

AC = 64

Step-by-step explanation:

the triangles are congruent because SAS

AC = AB

7x-6 = 6x+4

x = 10

AC = 64

The angle of elevation to the top of a flagpole is 50 degrees if the angle of elevation was measured 24 m from the flagpoles base wich expression can be used to find the height of the flagpole

Answers

Answer:

Tan 50 = H/24

Step-by-step explanation:

The set up will give a right angled triangle;

Given the following

angle of elevation = 50degrees

Distance of elevation from the flagpole base = 24m (Adjacent)

Required

Height of the flagpole (Opposite) = H

Using the SOH CAH TOA identity

Tan theta = opposite/adjacent

Tan 50 = H/24

H = 24tan50

H = 24(1.1918)

H = 28.60

Hence the required expression is Tan 50 = H/24 where H is the height of the flagpole

The height of the flagpole is 28.60.

Given

The angle of elevation to the top of a flagpole is 50 degrees.

The angle of elevation was measured 24 from the base of the flagpole.

The angle of elevation;

The angle of elevation of the sun is the angle formed between the horizontal line and your line of sight when you look at the sun.

Let the height of the flagpole be H.

Then,

The height of the flagpole is given by;

[tex]\rm Tan\theta=\dfrac{Opposite \ side}{Adjacent \ side}\\\\[/tex]

Substitute all the values in the formula;

[tex]\rm Tan\theta=\dfrac{Opposite \ side}{Adjacent \ side}\\\\ \rm Tan50=\dfrac{H}{24}\\\\H = 24 \times tan50\\\\H = 24\times 1.91\\\\H=28.60[/tex]

Hence, the height of the flagpole is 28.60.

To know more about the angle of elevation click the link given below.

https://brainly.com/question/12992313

in which part of the number line would 112% be located?​

Answers

Answer:

It would be 1.12 away from 0

WHAT IS THE ANSWER PLIS HELP MEEEE

20 POINTS

Answers

Answer:

8

Step-by-step explanation:

W You deposit $9000 in a savings account that earns 3.6% annual interest compounded monthly. You also save $40 per month in a safe at home. Write a function C(t) =b(t) +h(t), where b(t) represents the balance of your savings account and h(t) represents the amount in your safe after t years. c(t) = Find and interpret C(5). C(5) = $​

Answers

Answer:

C(5)= $13,172.05

Step-by-step explanation:

To calculate C(t), we need to divide the formula into two equations:

C(t) =b(t) +h(t)

b(t)= PV*(1+i)^n

n= number of months

i= monthly interest rate

PV= initial investment

h(t)= montlhy deposit* number of months

Now, for C(5); I assume its 5 years:

i= 0.036/12= 0.003

n= 5*12= 60

C(5)= 9,000*(1.003^60) + 40*60

C(5)= $13,172.05

in a parking lot 60% of the cars are four-door cars.If there are 75 four-door cars in the parking lot how many cars are in the parking lot all together?​

Answers

Answer:

there are 125 cars in the parking lot

Step-by-step explanation:

how is 3/4 bigger than 2/4

Answers

Answer:

3/4 is equivalent to .75 and 2/4 is equivalent to .50 so this shows   .75 is greater than .50 allowing us to know 3/4 is greater than 2/4

Step-by-step explanation:

Answer:

Hey

Ok ima explain it in the most simple way

lets start with 2/4 if you count and do everything correctly 2 is halfway from 4 so its 50%. think of it this way 2/4 is 50% because 2 is only halfway to 4.

3 is more than half way to 4 because it is only up to 4. You can only do this method when the denominator is the same. 3/4 is bigger than 2/4 because 3 is bigger than 2.

Step-by-step explanation:

Have a good day!!

The frequency table shows the scores from rolling a dice

work out the mean

Answers

you have to add all of your frequency’s together and divide by 6 for the 6 scores. your mean would be 2

PleSee help!!! 10 points for it

Answers

Answer:

ben birşey anlamadım sorundan

15
42
Which interval for the graphed function contains the
local minimum?
O [-1, 1]
O [1, 2]
O [-3, -1]
O (-5, -3]
2
3
4
5
Х
6
-12
-15

Answers

Answer:

probably -3, -1 bc it is local to origin and the minimum in that situation. I just got into this topic myself so I'm not exactly sure

Which of the following gives a valid reason for using the given solution method to solve the system of equations shown?
Equation : 4x - 5y = 4
Equation il: 2x + 3y = 2
A Elimination, a coefficient in Equation 1 is an integer multiple of a coefficient in Equation II.
B. Elimination, a coefficient in Equation II is an integer multiple of a coefficient in Equation I.
C. Substitution, Equation I can be solved for x in one step by dividing both sides by 4.
D. Substitution, Equation Il can be solved for x in one step by subtracting 3y from both sides.

Answers

Answer:

A . Elimination, a coefficient in Equation 1 is an integer multiple of a coefficient in Equation II.

hope it is helpful...

3 1/8 - 7/12


NEED HELP ASAP!!! Plz

Answers

Step-by-step explanation:

hope this right.but if its not,im so sorry

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