The ratio of the number of boys to the number of girls at school is 4:5. If there are 120 boys, how many total students are there? (Write the number only) *

Answers

Answer 1

Answer:

150

Step-by-step explanation:

So first you divide 120 by 4 so you know how much times 4 was increased, 4 was increased by 30 times

Next you multiply 5 by 30 because 4 was multiplied by that much

The answer is 150 girls


Related Questions

Help Me Plz I need a good grade

Answers

Answer:

The answer might be 160 degrees

Step-by-step explanation:

Please mark s brainlest.

Answer:

x=120 (x-60)=60

Step-by-step explanation:

Because the unlabeled angle and right angle are parallel we can assume that the unlabeled angle will be 90 degrees.

90+90+x+(x-60)=360

120+2x=360

-120 -120

2x=240

x=120

(x-60)

120-60

60

In your own words explain how you would solve this two step equation for the variable x. 9x-7=-7

Answers

Answer:

Add 7 to both sides

Step-by-step explanation:

The equation has to be just x = y

There cannot be another number on the same side as the variable

Now that we did that, the equation is 9x = 0

x = 0

Well, that was easy lol

Answer:

Step-by-step explanation:

Add 7 to both sides

9x = 0

Then divide by 9 both sides to get x by itself

x = 0

Elijah played 98 consecutive games of soccer without being taken off the field. Then, after a single game on the sidelines, he played another string of consecutive games, although this string was 50% shorter. How many consecutive games was that?

Answers

Answer:

If the game will start at 11:00 A.M., but the players must arrive at the field three-quarters of an hour early to warm up, it refers to 8:45 a.m. Why? If we start to count in 11 backward and start to trace the three-quarters, it shows that 10:45, 9:45, and 8:45 are the three-quarters. So Hamid statement that he has to be at the field at 9:45 A.M is not correct.  

Step-by-step explanation:

27 ÷ 3 and 3 ÷ 27
associative property
Yes, commutative property
Yes, identity property
No, they are not equal
which one is it

Answers

Answer:

No they aren't equal........

No they are not equal

what is the solution of the exponential equation? use a graph. full calculations,[tex]27=3^{x-2}[/tex] please!!

Answers

Answer:

5

Step-by-step explanation:

if i really need to use a graph leave a comment

27=3ˣ⁻²

[tex]x=y^z\\=\\log_{y}x=z\\[/tex]

Which means that

[tex]27=3^{x-2}=\\log_327=x-2\\log_327=\frac{log27}{log3}=3\\3=x-2\\x=5[/tex]

Researchers make a one-sample z interval to estimate the proportion of adults who would say they learned
something new in the past month. Previous studies have suggested that about 40% would answer "yes" to this
question. The researchers plan on using a confidence level of 95%, and they want the margin of error to be no
more than 25%.

Answers

Answer:369

Step-by-step explanation:

Luisa found great deals on the target dollar spot. She bought 35 items and spent a total of $100 on earbuds ($2 each) and fuzzysocks ($3 each). How many earbuds did she buy? how many fuzzy socks did she buy?

Answers

Answer:

50 earbuds because

Step-by-step explanation:

    half of 100 is 50

Answer:

x=35 earbuds

Step-by-step explanation:

7 pink flowers, 9 purple flowers, and 5 white flowers. What is the ratio of purple flowers to total flowers?

Answers

Answer:

9:21

Step-by-step explanation:

Answer:

9:12

Step-by-step explanation:

There are 9 purple flowers, 7 pink flowers, and 5 white flowers.

If you want the ratio of purple to the total, all you have to do is add the pink and white flowers together.

So the answer would be...

9:12

4x+14+8x-14=180 find for x

Answers

Answer is x = 15

4x + 14 + 8x -14 = 180

Add/subtract x terms and non x terms

12x = 180

x = 180/12 = 15

Check if answer is right by putting x = 15 back into original equation and seeing if it equals 180

4(15) + 14 + 8(15) -14 = 180

Answer is correct.

BC has endpoints B(-3,-5) and C(12,12). FInd the coordinates of the midpoint of BC

Answers

Answer:

(9/2, 7/2)

Step-by-step explanation:

The easiest way to remember how to do this problem is to average the x-coordinates and average the y-coordinates.

So, in your problem (-3 + 12)/2 = 9/2   and  (-5 + 12)/2 = 7/2

The midpoint is (9/2, 7/2)

Which of the following is a solution of x2 + 4x + 6? (1 point)

Answers

Answer:

I LOVE ALGEBRA anyways

othe ans is in the picture and the steps how  got the ans

(hope it helps can i plz have brainlist it will make my day :D hehe)

Step-by-step explanation:

-7 times a = 14? a = -7, right?

Answers

Answer:

− 7 ⋅ a

Step-by-step explanation:

Nothing further can be done with this topic. Please check the expression entered or try another topic.

Answer:

a = -2

Step-by-step explanation:

-7 * -2 = 14

what is 1/5 + 1/6=
Pls I need help

Answers

Answer:

So the first step would be is to multiply the denominators so you would get this:

6/30 + 5/30

Then you would have 11/30 no simplification needed.

Se image below for more info:

Answer:

11/30

Step-by-step explanation:

To add fractions, you need to find the common denominators

the common denominator for 5 and 6 is 30, because 5*6 = 30

1/5 times (6/6) to get a common denominator of 30. Remember, you have to multiply the numerator by 6 too!

1           6          6

_    x    _    =    _

5         6          30

Now, we just have to multiply 1/6 by (5/5) to get a common denominator of thirty.

1           5          5

_    x    _    =    _

6         5          30

5             6         11

_     +      _    =    _

30          30        30

You final answer should be 11/30

At an ice cream shop, 16 of the last 72 cones sold had pistachio ice cream. What is the
experimental probability that the next cone sold will have pistachio ice cream?

Answers

Answer:

2/9

Step-by-step explanation:

Total cones sild= 72

Pistachio ice cream sild= 16

p= 16/72

p=2/9

PLEASE MARK ME AS BRAINLIEST!!!!

A book sold 39,900 copies in its first month of release. Suppose this represents 8.2% of the number of copies sold to date. How many copies have been sold to date?

Answers

Answer:

486,585

Step-by-step explanation:

x = total number of books sold

0.082 x x = 39,900

to find x divide both sides by 0.082

x = 486,585

Evaluate the expression.
-8.x – 3y if x = 4 and y = -2

Answers

Answer:

-8.4 + 6 hope this helped!

Step-by-step explanation:

Answer:

-38

Step-by-step explanation:

-8.x – 3y

x = 4

y = -2

Since we have the value for x and y we can use that and substitute it into the expression

-8(4) - 3 (-2)

-32 - 6

When you add 2 negative numbers (or subtract them) they will give you a bigger number so think of it as adding 2 positive numeber, but then putting a negative sign in the beginning of it.

-32 - 6

-38

Hope this helped!

Have a supercalifragilisticexpialidocious day!

The following histogram summarizes the ages of the 25 employees who work for Elon's company. According to the 1.5 IQR wall for outliers how many high outliers are there in the data set

Answers

Answer:

Step-by-step explanation:

1

The number of high outliers in the data set will be 1.

What is the interquartile range?

The interquartile range is a measurement of a data set's "middle fifty." A range is a measurement of where a set's beginning and end are located.

To get the interquartile range, we must know the first and third quartiles. To find those, we need to know the median of the data.

The following histogram summarizes the ages of the 25 employees who work for Elon's company. According to the 1.5 IQR wall for outliers. The number of the high outliers will be 1.

Therefore, the number of high outliers in the data set will be 1.

To know more about the interquartile range follow

https://brainly.com/question/4102829

#SPJ2

help with rounding off!!please

Answers

Answer:

Step-by-step explanation:

A.0.4821 ( 3 d.p)=0.482

B.0.595 (2 d.p)= 0.60

C.0.0346(3 d.p)=0.03

D.2.94999(1 d.p)=2.9

Mark me as a brainliest

0.482
0.60
0.03
2.9
those are the answers

When solving the inequality 3x - 2 < 8x + 10, the next line
becomes 3x < 8x + 12. Which property justifies this step?
(1) Distributive
(2) Associative
(3) Multiplicative Property of Equality
(4) Additive Property of Equality

Answers

The answer is 3 hope this helps

Distribute and solve
(p + 24) = 9

Answers

Answer:

p+24=9

p=-15

Step-by-step explanation:

plz make me brainliest

(p+24) = 9
p + 24 = 9
-24 = -24
p = -15

Using the slope​ formula, find the slope of the line through the given points.
(6,6) and (8,2) what is the slope line

Answers

Answer:

-2

Step-by-step explanation:

To do this you just have to do the slope formula which is y2-y1/x2-x1 then plug in the numbers so you get 2-6/8-6  which would get you which can be reduced to -2 so that would be the answer

A modified roulette wheel has 32 slots. one slot is 0, another is 00, and the others are numbered 1 through 30, respectively. You are placing a bet that the outcome is an odd number. (In roulette, 0 and 00 are neither odd nor even.)<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />


a. What is your probability of winning ?

The probability of winnign is ?

( type an integer or a simplified fraction)

b. What are the actual odds against winning are ?

c. When you bet that the outcome is an odd number, the payoff odds are 1:1. How much profit do you make if you bet $17 and win ?

If you win, the pay off is ?

d. How much profit should you make on the $17 bet if you could somehow convice the casino to change its payoff odds so that they are the same as the actual odds against winning ?

(rounds to the nearest cent as needed.)Type your question here

Answers

Answer:

0.46875 ; 1.133 ; $17 ;19.27

Step-by-step explanation:

Number of slots = 32

0, 00, {1,.. 30}

Odd outcomes = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29}

1.) probability of winning :

P(winning) = number of odd outcomes / tot possible outcomes

P(winning) = 15 / 32 = 0.46875

2.)

Odds against winning :

Number of losing outcomes / number of winning outcomes

Not odd numbers / odd numbers = 17 /15 = 1.133

C.)

Payoff odd = 1:1

If bet value = $17 ;

Profit made on winning = $17 * 1 = $17

d.)

If Payoff odd = odd against winning = 17 / 15

Profit on $17

17/ 15 * 17

(1.1333333) * 17

= 19.27

;

this time I cannot tell what the answer is ​

Answers

Answer:

Its the first one

Step-by-step explanation:

B is the correct answer

Cone A has a diameter of 12 meters and a slant height of 9 meters. The linear dimensions of cone B are 5 times the linear dimensions of cone A. Compare the volume of cone B to the volume of cone A.
******ill give brainliest plz help me*****

Answers

Answer:

Cone volume formula

To calculate its volume you need to multiply the base area (area of a circle: π * r²) by height and by 1/3: volume = (1/3) * π * r² * h

Step-by-step explanation:

PLEASE HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER

Answers

Answer:

Step-by-step explanation:

h(x) = 7 - x - 2x^5

h(-1) = 7 + 1 - 2(-1)^5

h(-1) = 7 + 1 + 2

h(-1) = 10

Now differentiate h(x)

h'(x) = -1 - 2*5*x^4

h'(x) = -1 - 10x^4

h'(x) = -1 - 10(x)^4

h'(x) = -1 - 10 (x)^4

h'(-1) = -1 - 10(10000)

h'(-1) = -1 - 100000

h'(-1) = - 99999

In a financial crisis, the number of bankruptcies will likely be ____ and the company profits will likely be O A. larger; larger O B. smaller; smaller C. smaller; larger O ; D. larger; smaller​

Answers

Answer:larger ,smaller

Step-by-step explanation:

Answer:

larger, smaller

Step-by-step explanation:

on aoex

What is the Y intercept of y=3-4x?​

Answers

Answer:

13

Step-by-step explanation:

A city council organized a marathon race to promote good health. There were 3 times as many female participants as male participants in the marathon. If the total number of participants was 812, how many participants were male

Answers

Answer:

609 males

Step-by-step explanation:

A city council organized a marathon race to promote good health.

Let the number of

Females = x

Males = y

There were 3 times as many female participants as male participants in the marathon.

3x = y

If the total number of participants was 812,

x + y = 812..... Equation 1

We substitute 3x for y in Equation 1

x + 3x = 812

4x = 812

x= 812/4

x = 203 females

3x = y

Solving for y

3(203) = 609 males

The number of males participants = 609

What is equation of the line graphed below?

Answers

using the parent function y = mx + b,
y = -3x
slope is m- so rise over run -3/1 = -3
where the line crosses the y axis is b- 0 (origin)
ExplanationFind the slope by using rise over run with two coordinate points.

[tex](0,0) \longrightarrow \sf{part \: \: of \: \: the \: \: graph} \\ (1, - 3)\longrightarrow \sf{given \: \:coordinate \: \: point}[/tex]

[tex]m = \frac{dy}{dx} = \frac{y_2-y_1}{x_2-x_1}[/tex]

Substitute these coordinate values in.

[tex]m = \frac{0 - ( - 3)}{0 - 1} \\ m = \frac{3}{ - 1} \\ m = - 3[/tex]

Hence, the slope is -3.

Find the y-intercept.

From the graph, the line passes through the origin point. Therefore, the y-intercept is (0,0).

Slope-Intercept form

[tex]y = mx + b \\ \begin{cases} \sf{m = slope} \\ \sf{b = y - intercept} \end{cases}[/tex]

Substitute both m and b in the slope-intercept form.

[tex]y = - 3x + 0 \\ y = - 3x[/tex]

Hence the answer is y = -3x.

Answer

[tex] \large \boxed{y = - 3x}[/tex]

Simplify the following expressions and evaluate any numerical expressions.

(−3x)2

Select one:

−9x4


−9x2


9x4


9x2

Answers

Answer:

-6x

Step-by-step explanation:

Why is it 9? Cuz its not 3(3)

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