MATHEMATICS MIDDLE SCHOOL

The ratio of boys to girls on a swimming team is 3 to 4. the team has 70 members. how many are boys?

Answers

Answer 1
Answer: Number of boys are 30

Assume number of boys (X) , Number of Girls (Y)
X + Y = 70                       (1)      
X/Y = 3/4
Y = 4/3X                          (2)

replacing the value of Y in (2) in number (1)

X + 4X/3 = 70
7X/3 = 70
7X = 210
X = 30

so number of boys = 30 boys

Related Questions

scores on a college entrance examination are normally distributed with a mean of 500 and a standard deviation of 100% of people who write this exam obtain scores between 425 and 575​
What is 0.425 as a fraction simplified. Thank you :)
Which can be solved using this equation?8x + 5 = 253 A. There are 253 students attending a ball game in a nearby city. Eight buses that are filled will be transporting students. The other students will be traveling by car. How many students will be arriving by car? B. There are 253 students attending a ball game in a nearby city. Eight students will be traveling to the game by car. Five buses that are filled will be transporting the other students. How many students are in each bus? C. There are 253 students attending a ball game in a nearby city. Five students will be traveling to the game by car. Eight buses that are filled will be transporting the other students. How many students arrive by bus? D. There are 253 students attending a ball game in a nearby city. Five students will be traveling to the game by car. Eight buses that are filled will be transporting the other students. How many students are in each bus?
At summer camp the ratio of boys to girls is 7:1. 1. If there were 63 boys how many girls were there?
If it is 12:17 what time was it 45 minutes ago (plz say how you got awnser)

1/2 = ?/10


PLEASE PLEASE HELP!!!!!!!!!!!!!!

Answers

Ok, what I do is double or do × 2 to the numerator and the denominator so since they already put the 10 as a denominator, I am going to see ___ ×2=10 and to figure that out I am going to see how many times 2 goes in to 10 so it goes in there 5 times so 5×2=10 and now, I am going to do the same thing with my numerator to find out what the ? equals to so 5 × 1 ( which 1 is the numerator of 1/2) equals 5, so 1/2 is equal to 5/10
10 divided by 2 is 5. 
so do 5 times 1. that is 5 your answer is 5/10

A rancher has 200 ft of fencing to enclose two adjacent rectangular corrals. (A) write the area A of the corrals as a function of x.

(B) create a table showing possible values of x and the corresponding areas of the corral. Use the table to estimate the dimensions that will produce the maximum enclosed area.

(C) use a graphing utility to graph the area function. Use the graph to approximate the dimensions that will produce the maximum enclosed area.

(D) write the area function in standard form to find analytically the dimensions that will produce to maximum area.

Answers

I'm calculated and I figure that it's graphing

In a relay race, 5 friends ran an equal share of the distance. The total distance of the race was 3 miles. What is the distance that each friend ran

Answers

3/5 = 0.60 miles

Each friend ran 0.60 miles
Well, you have to divide 5 by 3.

5 / 3 = 1.66          

Now lets check it.

1.66 x 3 = 4.98

That should get you close enough to an answer.

Which functions are increasing?

Choose all answers that are correct.

Answers

the 2,3 they are the best answers .
The increasing functions will be going upward.

Answers:-

- The second graph has an increasing function. 
- The third one is also increasing from 0 to the other ordered pair. 

How would you solve -7x-4y=16

Answers

so one easy way is to make the equation equal to only one place holder so 
-7x-4y=16
add 7x to both sdies
-4y=16+7x
multiply both sides by -1
4y=-16-7x
divide both sides by 4
y=-4-7/4x
subsitute values for x and get values for y
exg
if x=0 then y=-4
if x=1 then y=-5 3/7
etc

Does this model represent a compound? Explain your
answer

Answers

Answer:

No

Step-by-step explanation:

The model shows two similar elements.

Although we do not know what the element is, we can conclude that the model is not a compound.

This is because the definition of  a compound is when two different elements join.

However, the model has two similar elements, which forms a molecule, not a compound.

Answer:

The model does not represent a compound because it shows two atoms of the same element combined.

Compounds are made of two or more atoms of different elements.

In a ball-and-stick model of a compound, there should be balls of different colors
Other Questions
Sam is determining the area of a triangle. In this triangle, the value for the height is a terminating decimal, and the value for thebase is a repeating decimal. What can be concluded about the area of this triangle?
an item was selling for $72 is reduced to $60 find the precent decrease in price round your answer to the nearest tenth
PLEASE HELP WITH MATH AND BEST GETS BRAINLIEST. PLEASE SHOW WORK.
I now the shape for not cubes i need explain