The ratio of boys to girls in a class is 2:3. There are 30 students in the class. How many more girls than boys are there?

Answers

Answer 1

Answer:

there are 18 girls

Step-by-step explanation:

for every 2 boys there are 3 girls

so then you can say 2/5 of the class are boys and 3/5 are girls

and you have to calculate 3/5 of 30 so you have to divide 5 and then multiply by 3 so 30 divided by 5 is 6 the n multiply 6 by 3 and the answer is 18.

Hope this helps


Related Questions

Dave has $13 to spend on a $6 book and two birthday cards (c) for his friends. How much can he spend on each card if he buys the same card for each friend.
whats the inequality? and how much can he spend on each card?

Answers

Answer:

3.50

Step-by-step explanation:

(13 - 6) divided by 2

7 divided by 2

$3.50

Answer:

3.50

Step-by-step explanation:

13 - 6 =7

If you have 7 dollars left and need 2 cards, u can plit the 7 dollars

7 ÷ 2 = 3.50

Help me please with this question:)

Answers

Answer:

it's the second one.

option 2

If a 14 oz. box contains 4 cookies, how many ounces are in a box that contains
10 cookies?

Answers

14/4 = 3.5 oz per cookie
10 * 3.5 = 35 oz for 10 cookies
14 oz contrains 4 cookies
Then half of 14 oz contains half of 4 cookies (7 oz. box = 2 cookies)
2 times 5= 10 cookies
7 oz box times 5 is 35 oz

The answer is 35 oz

Find the quotient. 514÷15 A. 720 B. 7834 C. 267 D. 314

Answers

Answer:314

Step-by-step explanation:

What is the solution to the following equation? -32-8x=-7x+8(8x-4)

Answers

the answer to your question is x=0

X=0

−32−8x=−7x+8(8x−4)

−8x−32=−7x+8(8x−4)

−8x−32=−7x+64x−32

−8x−32=57−32

−8−32+32=57−32+32

−8=57

Clara created a coordinate grid of her city. The bowling alley is located at (10, 12) and the skating rink is located at (-6, -4). Halfway between the bowling alley and skating rink is the movie theater. clara's house is halfway between the movie theater and skating rink. what are the coordinates of clara's house?

Answers

Answer:(-2,0)

Step-by-step explanation:

you just kinda have to guess tbh that’s what i did

can someone explain to me what probability is

Answers

Answer:

Probability is the probability of an occurrence taking place or the number of favorable events divided by the number of potential outcomes.

Step-by-step explanation:

Answer:

Probability is the likelihood of something happening.

Step-by-step explanation:

It is more probable of something reasonable happening, as opposed to something non-reasonable.

I need help with this question please show the work​

Answers

Step-by-step explanation:

5+3y=12

3y=12-5

3y=7

y=7/3

Jeremy wants to give a 20% gratuity to his cab driver. His fare is $35.50. What is the total amount he will pay the driver?


A. $7.10

B. $17.75

C. $42.60

D. $63.90

Answers

Answer:

the answer is A. $7.10

Step-by-step explanation:

Answer:

42.60 aka C

Step-by-step explanation:

:)

Sam has a total of 43 quarters and nickels in her purse. If her change is worth $7.75, how many nickels and how many quarters does Sam have?
Warning: This is Algebra 1

Answers

Answer:

i need help with this too\

Step-by-step explanation:

Let q= the number of quarters
Let n=the number of nickels

q+n=43 This equations represents the total number of coins.
0.25q+0.05n=7.75 This equations represents her change totaling to $7.75.

Multiply the second equation by 100 to simplify the arithmetic.

q+n=43
25q+5n=775 Multiply the first equation by -5.

-5q-5n=-215
25q+5n=775 Add the two equation in which the n variable gets eliminated.
20q=560 Divide both sides by 20.

q=28 Substitute q=28 into the first equation and solve for n.
28+n=43
-28 -28
n=15 Therefore, she has 28 quarters and 15 nickels in her purse.

Hope this helps.

y = 4x – 3 DON'T KNOW THE ANSWER

Answers

Answer:

x=3/4, x=0.75

Step-by-step explanation:

Y=4x-3
+3. +3
Y+3=4x

Y+3/4=x

(You can’t simplify/solve the equation for the list because there’s two variables)

Someone please answer ASAP thank you

Answers

Answer:

[tex]\huge\boxed{\sf 2}[/tex]

Step-by-step explanation:

Since these triangles are similar, we'll use proportion to find the unknown side.

[tex]\sf \frac{25}{10} = \frac{5}{?}[/tex]

Cross Multiply

[tex]\sf ? * 25 = 10*5[/tex]

Divide 25 to both sides

[tex]\sf ? = 50/25\\\\? = 2[/tex]

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AnonymousHelper1807

70×2 -40 = what answer right this is for fun you'll get brainliest​

Answers

Answer:

100

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

70x2 = 140

140-40 = 100

which of the ordered pairs is a solution of the following equation
5x-2y=20

Answers

We want to see which ordered pairs are a solution of the equation:

5x - 2y = 20

The ordered pairs are not given, so I will give a general answer, finding the general form of all the ordered pairs that are solutions.

We start with the equation:

5x - 2y = 20

First, we need to isolate one of the variables, let's isolate y.

2y = 5x - 20

y = (5/2)*x - 20/2

Then we get:

y = (5/2)*x - 10

From this, all the ordered pairs (x, y) that are solutions of this equation are given by:

(x, (5/2)*x - 10)

Then to get the points we just need to replace the "x" with numbers, for example for x = 0 we get the solution:

(0,  (5/2)*0 - 10) = (0, -10)

For x = 1 we get the solution:

(1, (5/2)*1 - 10) = (1, -15/2)

And so on.

If you want to learn more, you can read:

https://brainly.com/question/12974594

Plz help me solve this math question

Answers

Answer:

John's family should second scheme.

please help find slope :(((

Answers

The slope is -1/4

It is going down 1 unit and going 4 units to the right. Hope this helps!

-1/4 the answer ))))

Identify the ordered pair of C. (ex; (5,-1))

will give brainly if answered correctly! :)

Answers

Answer:

(5,0)

Step-by-step explanation:

lol

Answer

(5,-1) is the c

In ΔWXY, y = 88 cm, x = 85 cm and ∠X=70°. Find all possible values of ∠Y, to the nearest 10th of a degree.

Answers

Answer:

All possible values of ∠Y are 76.6° and 103.4°

Step-by-step explanation:

In Δ WXY

∵ x is the opposite side of ∠X

∵ y is the opposite side of ∠Y

→ By using the sine rule

∴ [tex]\frac{x}{sin(X)}[/tex] = [tex]\frac{y}{sin(Y)}[/tex]

∵ x = 85 and y = 88

∴ m∠X = 70°

→ Substitute them in the rule above

∴ [tex]\frac{85}{sin(70)}[/tex] = [tex]\frac{88}{sin(Y)}[/tex]

→ By using the cross multiplication

85 × sin(Y) = 88 × sin(70)

→ Divide both sides by 85

∴ sin(Y) = 0.9728582427

∴ m∠Y = [tex]sin^{-1}[/tex](0.9728582427)

∴ m∠Y = 76.62037845

→ Round it to the nearest tenth

∴ m∠Y = 76.6°

→ The other value of ∠Y is the obtuse angle supplement of ∠Y

∴ m∠Y = 180 - 76.6

∴ m∠Y = 103.4°

All possible values of ∠Y are 76.6° and 103.4°

Answer:

No Possible triangles

Step-by-step explanation:

SOME ONE PLS HELP ME

Answers

Answer:

Two sheats would cost $27.00 and six scheats would cost $99.00

Step-by-step explanation:

2 sheets = $27
6 sheets = $99

Use the linear combination method to solve the system of equations. –3x + 8y = 16 3x + 4y = 8 What is the value of x? –1 0 1 2

Answers

Answer:

B. 0

Step-by-step explanation:

Your welcome :)

Answer:

b.0

Step-by-step explanation:

i got it right

Solve for x. 1) 22x -2=20x+10​

Answers

Answer:

x=6

Step-by-step explanation:

22x-2=20x+10

22x-20x=10+2

2x=12

x=6

Answer:

x = 6

Step-by-step explanation:

22x - 2 = 20x + 10

      +2             +2

22x = 20x + 12

-20x    -20x

2x = 12

2x/2   12/2

x = 6

B
SIS
M
If = of the pie below is eaten,
what fraction remains?

Answers

Answer:

the answer to this question is 1/4

Answer:

jgcoyc9t9yf9ycrcuflc

on the beach boardwalk there are 20 different places to get food. twenty percenct of them are ice cream shops. how many ice cream shops are in the park?

Answers

Answer:

4 of the shops are ice cream shops.

Step-by-step explanation:

If you take 20 and multiply it by .20 (because when multiplying by a percent we move the decimal over twice) you will get that 4 of the shops are ice cream shops.

[tex](.20) * (20) = 4[/tex]

Hope this helps!!

- Kay :)

Please help me! Im not good at this topic.

Answers

Answer:

I THINK IT IS C.

Step-by-step explanation:

Find the remainder when f(x) = 4x3 − 20x − 50 is divided by x − 3.

Answers

Answer:

Step-by-step explanation:

x= -0.23 or -7/30

find the surface area of a cubical wooden box of edge 14cm

Answers

Answer:

1176

Step-by-step explanation:

MATH QUESTION - Please Help
Rachel spent $36.32 in the
grocery store. She paid the exact
amount and used exactly 4 bills and
4 coins. What bills and coins did
Rachel use?

Answers

She used a 20, 10, 5, and 1, she also used a quarter, nickel, and 2 pennies

Answer:

she used a $20 bill, $10 bill, $5 bill, $1 bill, 25 cents 5 cents, and 2 pennies

Step-by-step explanation:

David wants to earn more than trimming trees. He charges per hour and pays in equipment fees. What are the possible numbers of hours David could trim trees? Use for the number of hours. Write your answer as an inequality solved for .

Answers

This question is incomplete

Complete questions

David wants to earn more than $26 trimming trees. He charges $6 per hour and pays $4 in equipment fees. What are the possible numbers of hours David could trim trees? Use for the number of hours. Write your answer as an inequality solved for

Answer:

The inequality is :

6h - 4 > 26

The possible numbers of hours David could trim trees is more than 5 hours

Step-by-step explanation:

David wants to earn more than $26 trimming trees. He charges $6 per hour and pays $4 in equipment fees.

Let the number of hours David works for be represented by h

More than means greater than , hence we use the inequality sign >

Hence, we have the inequality

$6 × h + $4 > $26

6h - 4 > 26

6h > 26 + 4

6h > 30

Divide both sides by 6

6h/6 > 30/6

h > 5

Hence, if David want to earn more than $26 he has to trim trees for more than 5 hours

a number that multiplies a variable in a term is a

Answers

Answer:

Coefficient

Step-by-step explanation:

please help me

A triangular pyramid and its net are shown. Rain uses the calculations below to conclude that the surface area of the triangular pyramid is 238.5 square inches. 3 x 10 x 13) + ( x 10 x 8.7) 3 (65) + 43.5 238.5 Is Rain correct? Use the drop-down menus to explain your reasoning.​

Answers

Answer:

Yes, Rain is correct

238.5 square inches

Step-by-step explanation:

Surface Area of a Triangular Pyramid,A = 1/2(a × b) + 3(1/2 × b × s)

= (1/2 × 10 × 8.7) + 3(1/2 × 10 × 13)

= 43.5 + 3(65)

= 43.5 + 195

= 238.5 square inches

The surface area of the triangular pyramid = 238.5 square inches

The surface area of the net of the triangular pyramid is 223.5 in². Rain is not correct.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

From the net attached:

Surface area = 3(1/2 * 10 * 12) + (1/2 * 10 * 8.7)

Surface area = 223.5 in²

The surface area of the net of the triangular pyramid is 223.5 in². Rain is not correct.

Find out more on equation at: https://brainly.com/question/2972832

#SPJ5

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