In a school, the ratio of the number of boys to the number of girls in a school is 7 : 5 - if there are 600 students in the school, how many girls are there?
How many students does each unit represent?
Answers
Answer:
350 girls.
5 unit represents 250 girls and the 7 unit represents 350 boys
Step-by-step explanation:
Add 5+7 =12
600÷12=50
RATIO OF BOYS TO GIRLS IS 7:5 SO
50x5=250 GIRLS.
7*50=350
so 5 unit represents 250 girls and the 7 unit represents 350 boys.
Answer:7
Step-by-step explanation:
Related Questions
Use the Distributive Property to simplify the expression: 4(5+2)= *
Answers
Answer:
28
Step-by-step explanation:
4x5=20
4x2=8
20+28=28
Answer:
28
Step-by-step explanation:
4(5+2) = 4(5) + 4(2) = 20 + 8 = 28
Identify the methods
PLEASE HELP!!
Answers
Answer:
Letter A and B are the answers
Answer:
C and D
Step-by-step explanation:
You need to add the 2 equations together, so one equation must be negative and the other positive. You also need to make sure the coefficients to the variables are the same so you can eliminate them. Therefore, A and B are wrong and your correct choices are C and D.
20 Points :P
Examine the graph.
Select each interval where the graph is increasing.
−1
0
2
−3
Answers
Answer:
0
Step-by-step explanation:
Pleas help you do not have to explan
Answers
Step-by-step explanation:
subtracting 2/7 from both side we get s=0.
subtract 2/7 from both sides
s=0
100 points, (1-7, I need help with all of them please, you can explain stuff too)
1. "The number of years from the start of the Great Depression to the first presidential election of Richard Nixon is six years less than three times Raul's age. Nixon's first presidential election happened 39 years after the Great Depression. Using the given information, write an equation to find Raul's age, r."
2. "Rewrite the equation from part A by factoring the side that contains the variable r."
3. "Solve the two previous equations for r. What value does each equation give for Raul's age. Are the two values the same?"
4. "Raul's grandfather is Miguel, and Raul's sister is Paula. Raul's age is the same as his grandfather's age minus 60 times the age of his sister. Miguel is 65 years old. Using the results from question 2, write an equation to find Paula's age, p, in years."
5. "Rewrite the equation from question 4 by factoring the side that contains the varible p."
6. "Solve the equation for p to find Paula's age. Express her age in years as a fraction."
7. "How many months old is Paula?"
Answers
Answer:
Answer:
Raul's age is 15 years.
Step-by-step explanation:
r represents Raul's age.
The number of years from the start of the Great Depression to the first presidential election of Richard Nixon is six years less than three times Raul's age.
The first presidential election happened 39 years after the Great Depression and six years less than three times Raul's age is 3r - 6.
Therefore, 3r - 6 = 39
Add 6 to both sides.
3r = 45
Divide both sides by 3.
r = 15
Hence, Raul's age is 15 years.
Peter is buying a computer monitor that is 20 inches tall and has a distance of 29 inches between opposite corners. What is the width of Peter's new monitor?
Answers
Plug numbers in pathagerom therom and solve
Amy buys candy that costs $5 per pound. She will spend more than $45 on candy. What are the possible numbers of pounds she will buy? Use p for the number Amy will buy. Write your answer as an inequality solved for p.
Answers
45/5 = 9
45 = 9
p = 9
divide 45 by 5 = 9
9=p
Please Help ASAP! Rewrite x^4y^2 − 3x^3y^3 using a common factor.
A. 3xy(x^3y − x^2y)
B. 3xy^2(x^2 − x^2y)
C. x^2y(xy − 3xy^2)
D. x^2y^2(x^2 − 3xy)
I think it's B. But I might be wrong.
Answers
Answer:
Step-by-step explanation:
you are completely right please follow your heart <3
You have to look at both x and y and it’s power. You have to look for the lowest power for x and y. For y as you can see that the lowest power is 2. As for x it can be either power of 3 or even 2. When you removed x^2 and y^2 from the equation. The inside parenthesis will be x^2-3xy. Just remember when you divide both x^2 and y^2, you subtract the power.
When you get the answer, please check the answer if it’s the same as the original. Meaning distribution both x^2 and y^2 to inside parenthesis. And for the power, you add them. This way you can double check and see if it’s the same.
4ℎ − 3 ≤ −23
solve and graph the inequality
Answers
Answer: h ≤ -5
explanation:
4h - 3 ≤ -23
if you add 3 to both sides it becomes
4h ≤ - 20
then if you divide both sides by 4
h ≤ - 5
hope this helps :)
Write a system of linear equations that has the ordered pair (3,-5) as it’s solution
Answers
Answer:
x + y and x - y are the simplest system of linear equations that has the ordered pair.
Example:
x + y = -2
x - y = 8
That's the answer to the ordered pair (3,-5)
Remember x = 3 and y = -5
Step-by-step explanation:
HELP ME! please This needs to be done.
Answers
The expression that correctly shows the number sentence - the square of the sum of 6 plus b is greater than 10 - is option (a) - \((6+b)^{2} > 10\)
A mathematical statement made up of a relational symbol (=, >, <, etc.) and of two expressions is called a number sentence is . An equation is a number sentence whose relational symbol is the equal sign.
The given number sentence is an example of mathematical expressions in one variable.
Here, the variable given is 'b'.
According to the question,
The sum of 6 plus b can be represented as = 6 + b
And, the square of the sum of 6 plus b can be represented as = \((6+b)^{2}\)
This value is greater than 10.
This means, \((6+b)^{2} > 10\)
All other expressions are wrong interpretations of the given number sentence.
The correct answer is option (a) - \((6+b)^{2} > 10\)
To know more about expressions,
https://brainly.com/question/11560430
In a game, each player spins two spinners A and B. Spinner A is divided into thirds, filled with colors Black, Green, and Red. Spinner B is divided into thirds, numbered 1, 2, and 3. What are all the possible outcomes? How many possible outcomes are in the sample space?
Answers
Black, 1
Black, 2
Black, 3
Green, 1
Green, 2
Green, 3
Red, 1
Red, 2
Red, 3
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
Answers
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
hi everyone. i'm in 8th grade taking a high school algebra class. can anyone answer this?
7 + 3x + 2x = 3x + 1
Answers
Answer:
= −3
Step-by-step explanation:
Answer:
x = -3
Step-by-step explanation:
7 + 3x + 2x = 3x + 1
7 + 5x = 3x + 1
7 + 2x = 1
2x = -6
x = -3
15 points to whoever answers this!!
Answers
Answer:
\(\frac{16}{27}\)
Step-by-step explanation:
From the table, we notice that the total number of students is:
\(3+10+8+6=27\)
Then, along the second column of the table, we notice that the number of students who do not have a brother is:
\(10+6=16\)
So, the probability that a randomly chosen student does not have a brother is:
\(\frac{\text{number of students who do not have a brother}}{\text{total number of students}}=\frac{16}{27}\)
Match each of the following inequality statements to the appropriate graph.
Answers
Answer:
1
3
2
4
Step-by-step explanation:
HELP???????????????????????????????????????????????????????? pls? (10 points) (image down below to make it easier to understand.)
Answers
Answer:
Step-by-step explanation:
The rules of a contest say that there is a 5% chance of winning a prize. 400 people enter the contest. Predict how many people will win a prize.
Answers
Answer:
20 people
Step-by-step explanation:
In this problem, you are solving for 5% of 400. All percentages are out of 100, meaning 5% equals 0.05 because 5 ÷ 100 = 0.05
1. Multiply 400 by 5% (0.05)
400 · 0.05 = 20 people
Answer:
20 people will win
Step-by-step explanation:
i used a notes and google to answer this :)
What is 38.5 ÷ 1.4 I need help
Answers
Think About the Process
A right rectangular prism has length 3 1/3 , width 2 1/3 , and height 1 1/3 . You use cubes with fractional edge length 1/3 to find the volume. How many cubes are there for each of the length, width, and height of the prism? Find the volume.
Answers
For the length, we have:
3 1/3 ÷ 1/3 = 10
So there are 10 cubes along the length of the prism.
For the width, we have:
2 1/3 ÷ 1/3 = 7
So there are 7 cubes along the width of the prism.
For the height, we have:
1 1/3 ÷ 1/3 = 4
So there are 4 cubes along the height of the prism.
To find the volume of the prism, we can multiply the number of cubes along each dimension.
Volume = length × width × height
Volume = 10 × 7 × 4
Volume = 280 cubic units
So the volume of the prism is 280 cubic units.
Answer:crr
Step-by-step explanation:
thf
The length of a rectangle is represented by 9x - 5. The width of the rectangle is represented by 3.
Write two equivalent expressions that represent the Area of given rectangle.
Answers
Answer:
First factor the Area
Area = 18x2+12x+2
Factor out a 2
Area = 2(9x2+6x+1)
Factor this and you get
Area=2(3x+1)(3x+1)
Let L be Length and W be Width
Area=LW
and the Length is twice the Width so
L=2W
Area=2(3x+1)(3x+1) so
L=2(3x+1)
W=3x+1
This can also be written as if you distribute the 2
L=6x+2
W=3x+1
Please help me. I want to get a on this assignment.
Answers
Answer:
Its B
Step-by-step explanation:
due to 8x cancelling out and leaving 5 to equal to nothing there is no solution.
12 Points!!!!
Please take your time and answer correctly, I do not want to get this wrong!!!
Answers
Derrick's Dog Sitting and Darlene's Dog Sitting are competing for new business. Derrick's Dog Sitting charges $14 plus $5 per hour. Darlene's Dog Sitting charges $18 plus $3 per hour.
Part 1 out of 2
Complete and solve the equation that can be solved to find the number of hours for which the total cost will be the same for the two services. In your equation, use x to represent the number of hours of dog sitting.
The equation is ___=___.
The total cost will be the same for the two services at ____hours.
JUSTTT HELPP MEHH I NEED THIS RNNN
Answers
Answer:
Step-by-step explanation:
what's 10^-10 and 10^-14 as numbers
Answers
Answer: .00000000010, and .000000000000010
Step-by-step explanation:
So what your doing is moving the decimal
Yeah the person under or above me is correct
Question
A vitamin C tablet contains 140 of a gram of vitamin C. You take 112 tablets every day. In simplest form, how many grams of vitamin C do you take every day?
Answers
17808 grams of vitamin c taken everyday
dann that's a lot of vitamin c
Answer:
3/80 of vitamin C everyday
Step-by-step explanation:
Given :A vitamin c tablet contains 1/40 of a gram of vitamin c
To Find : how many many grams of vitamin c do you take everyday
Solution :
A vitamin c tablet contains a gram of vitamin c = 1/40
You take 1 1/2 = 3/2 tablets everyday
1 tablet contain vitamin C = 1/40
contain vitamin C = 1/40 x 3/2
that means you take 3/80 grams a day
please help meeeeeeeeee
Answers
How do you find an equation of a graph when there is no grid, no intervals, and no already put coordinates?
(for reference here's a brainly question similar to what i mean https://brainly.com/question/21317879?referrer=searchResults)
Answers
Answer:
I would make your own grid and have your own points. If they give you an equation already, you should be safe to do so.
Step-by-step explanation:
If you need to find an easier way, you can also use Desmos Graphing Calculator. (As long as it's okay with your school.)
Answer:
you can look at the thing for a graph and draw something similar
Step-by-step explanation:
i usually use a square and draw lines for different parts of a faction
What is the measure of ∠BFC?
Answers
Answer:
C. 70°.Step-by-step explanation:
Measure B and C:
B: 40°C: 110°Subtract 110° - 40°:
110° - 40°= 110 - 0= 110 - 40= 70°The measure of ∠BFC is 70°.
juan and adam both need pens and batteries. The equation that represents Juan's purchases is y= 27 -3x. The equation that represents Adam's purchases is y = 17 - x. if x represents the price of the batteries, and y represents the price of the pens, what are the price of the pens snd batteries. Please if you answer this explain it!
Answers
Answer:
pens are 12
batteries are 5
Step-by-step explanation:
y=27-3x y=17-x
-17 +3x 27-3x=17-x -17 +3x
2x=10
x=5
y=27-3x y=27-3(5) y=27-15
y=12