The number of boys is 3/5 of the number of girls. If there are 120 children all together, how many boys are there? PLEASE HELP ME!!!!!!!!

Answers

Answer 1

Answer:

72 boys

Step-by-step explanation:

120 * .60. That's how you solve it! Hope it helps!

Further explanation:

To get .60, you divide 3 by 5 which is .60

Then you multiply 120 times .60 and you'll get 72 which is 72 boys

Bonus: 120 - 72 = 48 girls!

Answer 2

Answer:

There are 45 boys.

Step-by-step explanation:

The best way to easily solvethis is by making equations, see below.

[tex]let \: b \: represent \: number \: of \: boys \\ let \: g \: represent \: number \: of \: girls[/tex]

[tex]b + g = 120 \\ b = \frac{3}{5} g[/tex]

Now we can subtract the secons equation from the first.

[tex]g = 120 - \frac{3}{5} g[/tex]

I'm also goong to multiply the equatipn by 5 to remove the fraction.

[tex]5g = - 3g + 600[/tex]

Now simplify

[tex]8g = 600 \\ g = 75[/tex]

Now we found out there are 75 girls. Now we insert this into our second equation to find how many boys there are.

[tex]b + 75 = 120 \\ b = 45[/tex]

Now we know there are 45 boys.


Related Questions

1) Given that the measure of Angle 2 = 115 degrees and the measure of Angle 8 = 115 degrees, is line m parallel to line p?​

Answers

Answer:

YES

Step-by-step explanation:

When a transversal cuts two parallel lines, the alternate interior angles are congruent. So, for two lines to be parallel, their alternate interior angles has to be equal.

Angle 2 and angle 8 are alternate interior angles. They both measure 115°. Since these alternate interior angles are congruent, therefore, line m is parallel to line p.

Solves a systems of linear equations in two variables.
Solve the following systems by graphing
1) 2x + y = 5 and x-3y = - 8
2) 6x - 3y = - 9 and 2x + 2y = -6
Solve the following systems by substitution
3) y = 5x-3 and -x - 5y = - 11
4) 2x - 6 = 24 and x - 5y - 22
Solve the following systems by elimination
5) - 4x - 2y = -2 and 4x + 8y = -24
6) x - y = 11 and 2x + y = 19​

Answers

1) (2,-1)
2) (-2,-1)
3)(.156,-2.22)

The midpoint of ab is m(5-2). If the coordinates of a are (6,-5), what are the coordinates of b

Answers

The coordinate of B is (4,1)

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y > 3x + 10 y is less than negative 3 over 4 times x minus 1 Part A: Clearly describe the graph of the system, including shading and the types of lines graphed. Provide a description of the solution area. (6 points) Part B: Is the point (8, 10) a solution to this system? Explain how you know

Answers

Answer:

See attached graph, and answers.

Step-by-step explanation:

The inequalities are given as;

i) y>3x+10

ii) y<-3/4x -1

Graphing the inequalities gives the following result

The solution area is that which is shaded and the lines are broken lines not complete

From the graph the solution is:  { -2.9,1.2}

The point {8,10} is not a solution to the system. This is because it is not in the shaded area that represent the solution to the inequalities.

Part A Tim wants to buy three pairs of jeans. He compares the prices at a store in his neighborhood and at an online store. He finds that a pair of jeans costs $24 at the local store. If he buys online, each pair would cost $22, and he would have to pay a shipping fee of $6 per order.

Answers

Answer:

The pants from the local store would be $72.00

the pants from the online store would be $85.00

the difference in price is $13.00

therefore the pants from the local store would be cheaper

Step-by-step explanation:

IM NOT SURE IF THIS ANSWERS YOUR QUESTION PLEASE CLARIFY!!!!

What is the measure of

Answers

What’s the measure of what?

-28=-5x+7


Solve the two step equation

Answers

Answer:

x = 7

Step-by-step explanation:

-28=-5x+7

Add 28 and 5x to both sides

5x = 35

Divide both sides by 5

x = 7

Answer: x=7

Step-by-step explanation:

Let's solve your equation step-by-step.

−28=−5x+7

Step 1: Flip the equation.

−5x+7=−28

Step 2: Subtract 7 from both sides.

−5x+7−7=−28−7

−5x=−35

Step 3: Divide both sides by -5

-5x/-5 = -35/-5

x=7

During the basketball season, diane took 134 shots and made about 56% of them. a.) how many shots did diane make? b.) the team made a total of 498 shots. what precent of the teams made shots did diane make​

Answers

Diane made exactly 47%

Answer:

75 shots and 15.1%

Step-by-step explanation:

pls help! will give brainlist!

parts of New Orleans is currently below sea level and continues to sing each year. NASA imagines shows that One part of the city is currently 6 feet (72 inches) below sea level. Each year and continues to sing two more inches. Write an expression to describe the depth of New Orleans after any given year

Answers

Answer:

depth = 6th + 2(number of years)

(6x^3-x^4+7)+(7x^4-3+2x^2

Answers

Answer:

6x⁴ + 6x³ + 2x² + 4

General Formulas and Concepts:

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define

(6x³ - x⁴ + 7) + (7x⁴ - 3 + 2x²)

Step 2: Simplify

Combine like terms (x⁴):                    6x⁴ + 6x³ + 2x² + 7 - 3Combine like terms (Z):                     6x⁴ + 6x³ + 2x² + 4

Solve the system of equations by graphing:
y= 2x +8
-x+y=0

Answers

Answer:

Slope = 4.000/2.000 = 2.000

Slope = 2.000/2.000 = 1.000

Step-by-step explanation:

the first answer is for the first problem and the second answer is for the second problem. Hoped it helped i tried my best.

Bilecko yeah lol thanks

What is the reason for step 3 in the two column proof below
1. ZPQR is a right angle
1. Given
2. MZPQR = 90°
2. Definition of Right Angle
3. m_PQS + MZSQR = m_PQR
3. ?
4. MZPQS + m_SQR = 90°
4. Substitution Property of Equality
5. ZPQS and 2SQR are complementary 5. Definition of Complementary Angles
Definition of Congruent Angles
Vertical Angles Congruence Theorem
Angle Addition Postulate
Definition of Angle Bisector

Answers

Answer:

The correct option is;

Angle Addition Postulate;

Step-by-step explanation:

The given two column proof can be presented as follows;

Statement                      [tex]{}[/tex]                          Reason

1. ∠PQR is a right angle      [tex]{}[/tex]                     Given

2. m∠PQR = 90°       [tex]{}[/tex]                                Definition of Right Angle

3. m∠PQS + m∠SQR = m∠PQR      [tex]{}[/tex]         Angle Addition Postulate

4. m∠PQS + m∠SQR = 90°      [tex]{}[/tex]                 Substitution property of equality

5. ∠PQS and ∠SQR are complementary Definition of complementary angles

Given that the angle m∠PQR has angles m∠PQS and m∠SQR arranged adjacent to each other while sharing the same boundary segment, QS we have by the angle addition postulate;

m∠PQR is the sum of the angles m∠PQS and m∠SQR, therefore;

m∠PQR = m∠PQS + m∠SQR = 90°.

In Landon's math class, there are 12 boys and 15 girls. Which of the following is the ratio of boys to girls in Landon's math class?

Answers

Answer: 9/4

Step-by-step explanation:

12/(12+15) = 12/27 = 9/4

The x-intercept can be found by putting in zero for y. Find the x-intercept.
-3x + 5y 30

Answers

30 because 5x0=0, 0+30=30z

Why are the solutions to the proportions StartFraction 40 over 8 EndFraction = StartFraction x over 10 EndFraction and StartFraction x over 40 EndFraction = StartFraction 10 over 8 EndFraction the same?

Answers

Answer:Because both result in the equation 8x = 400 which simplifies to 50.

 Step-by-step explanation:

Answer:

50

Step-by-step explanation:

no need

Factorize completely 25x^2-90x+81

Answers

Answer:

Factor using the perfect square rule.

( 5 x + 9 ) ^2

HOPE THIS HELPS!!!

Step-by-step explanation:

OPEN PERENTHESIS FIVE X PLUS NINE CLOSED PERENTHESIS TO THE SECOND POWER

(4x + 3y)^2 please tell me the wander ✌️​

Answers

Answer:

16x^2+24xy+9y^2

Step-by-step explanation:

16x^2+24xy+9y^2

What is the sum of 2/7 + 2/5 ?
please help 10 points and brainlest

Answers

Answer:

2/7 + 2/5=24/35

Someone please help solve this!! I’ll give brainlist

Answers

Answer:

Inital height is 20

Step-by-step explanation:

h= (-5x-5)(x-4)

h= -5x^2+15x+20

When a person 6 feet tall casts a shadow
10 feet long, how tall is a nearby tree
which casts a shadow of 45 feet?

Answers

Answer:

75 feet

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

Proportion

6 feet man/10 feet shadow = x (tree) / 45 feet (shadow)

6/10 = x /45            Cross multiply

10x = 45*6

10x = 270

x = 270/10

x = 27

The tree is 27 feet long

What is the x-intercept of the graph that is shown below?
(-2,0)
(-1,2)
(0,4)
(4,0)

Answers

The X intercept would be (-2, 0)
(-2,0)
X,Y
X will always be the number of the horizontal line and Y always on vertical

PLEASE HELP FAST POINTS AND BRAINLIST FOR ANSWER!

Answers

Answer:

y = 10x

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

m - slope b - y-intercept

Step-by-step explanation:

Step 1: Define

Slope m = 10

y-intercept b = 0

Step 2: Write function

Plug in variables into the general form.

y = 10x + 0

y = 10x

Answer:

y = 10x

Step-by-step explanation:

Equation of a line: y = mx + b

y = 10x + 0 is also y = 10x

Consider these functions:

f(x) = 2x3 + 3

g(x) = x – 4

What is the value of g(f(x))?

Answers

Answer:

2x^3+3-4

Step-by-step explanation:

Answer:

2x^3 - 1

Step-by-step explanation:

Plato/Edmentum


Noah bought a computer cartridge for $28.50. Sales tax on the
cartridge was 6.5%. What was the total amount that Noah paid for the
cartridge? ( I need this answer ASAP)

Answers

Total = purchase price x ( 1 + sales tax )

Total = 28.50 x 1.065

Total = $30.35

Sixty-five percent of what number is 26?

Answers

Answer:

40

Step-by-step explanation:

40 x 0.65 = 26

26 ÷ 0.65 = 40

Gabriel is 12 years old, and his younger brother Elias is 2 years old.
How old will each of them be when Gabriel is twice as old as Elias?

Answers

Gabriel will be 20, Elias will be 10

We can use an equation to map out and solve for each age.

Years gone by = x

12+x=2(2+x)

12+x=4+2x

x=8

12+8=20, 2+8 =10

will mark brainliest to whoever can answer

Answers

Answer:

A. 7

Step-by-step explanation:

h(x)=2x + 4

2(7)=14

14+4=18

Find the difference.

89 – 52.05
A. 36.95
B. 35.95
C. 37.95
D. 37.05

Answers

The answer your looking for is A. 36.95
Just calculate 89-52.05 into a calculator not that hard lol

Lacy pays $15 for each hour of golf lessons and $10 for equipment rental. If the lesson is more than 3 hours long, she only pays $5 for equipment rental. Is the total cost of Lacy's lesson a function of the number of hours scheduled? Use a table to help explain your answer. Show your work.

Answers

Answer:

60

Step-by-step explanation:

15x3=45

5x3=15

15+45=60

3÷4 is 34. What is 14 of 3?



a.3/4

b.13 of 4

c.43

d.1 1/4

Answers

Answer

well i know that the accual answer would be 466.6.

Step-by-step explanation:

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