The ratio of boys to girls at a day care center is 2:5. There are 16 boys at the center. What is the total number of boys and girls in the center?


a. 16

b. 40

c. 56

d. 19

Answers

Answer 1
The answer is B. 40

You have to multiply 2 times 8 to get 16 so you have to do that to the other side so you multiply 5 times 8 and you get 40.
Answer 2

Answer:

C

Step-by-step explanation:

2 : 5

16:?

So we need to make cross method. So,

5*16: 80

and

2*x: 2x

[tex] \frac{2x}{2} [/tex]

[tex] \\ \frac{80}{2} [/tex]

So divide both side and we got x:40

Total girls and boys: 56


Related Questions

Without computing, decide whether the value of each expression is much smaller than 1, close to 1, or much greater than 1.

Label your answers a - f. Just type smaller, close, or greater.






File Name: AAAASA

I don't know why . . .

Answers

Answer:

a. greater (divided by small = large)

b. close (almost the same value)

c. smaller or close depends on what close means

d. smaller (2 divided in so many parts is very small)

e. greater

f. smaller (already small divided in even smaller parts)

Step-by-step explanation:

Question below here ⬇️ PART 3

Answers

Answer:

-3+-18r=14-r

-3+-17r=14

-17r=17

r= -1

Answer:

r=-1

Step-by-step explanation:

Which of the following numbers can be expressed as repeating decimals?

5/7, 4/5, 7/9, 5/8

A. 7/9 and 5/8

B. 5/7 and 4/5

C. 5/7 and 7/9

D. 4/5 and 5/8

Answers

C

Because i know so yea. hola soy dora.

please answer I will give the brainliest if FIRST and RIGHT

Answers

Answer:

Step-by-step explanation:

I got - 70/9 or -7 7/9

The third option.

1/3y-7/5x+2/3-2/3y-4/9

I did my math and looked it up to make sure I was right and it’s the second expression

AHH HELP ME AGAIN :P THERES ONE MORE AFTER THIS

Answers

Answer:

26.25

Step-by-step explanation:

y = 8.75(3)

y = 26.25

The answer is $26.25

Samantha plays a trivia game. She earns 3 points for each correct answer and loses 0.75 points for each incorrect answer. She gets 11 correct answers and 4 incorrect. answers.
What is her score for the game?

Answers

So, let’s evaluate the correct ones. 11 x 3 = 33. Now for the incorrect. 0.75 x 4 = 1.
33 + 1 = 34
So her score in total is 34 points. Hope this helped! :D

Answer:

the answer is 30

Step-by-step explanation:

Using the graph of f(x) and g(x), where g(x) = f(k⋅x), determine the value of k.

Graph of two lines. f of x passes through 1, 2 and 2, 5, and g of x passes through one half, 2 and 1, 5.

−2
negative one half
one half
2

Answers

Answer:ye

Step-by-step explanation:

I need help on these two and I will be giving 20 points and a crown

Answers

1/16 and 27
Explanation

Answer:

the answer is 1/16 and 9

Step-by-step explanation:

used desmos calc

566³×566² i need help with this question

Answers

Answer:

5.8087429e+13

Step-by-step explanation:

Answer:

5.8087429e+13

Step-by-step explanation:

566^3 is 181321496

566² is 320356

What value of x will give the maximum value for -x^2- 6x + 12

PLEASE DON'T ANSWER UNLESS YOU HAVE THE CORRECT ANSWER.

Answers

Answer:

x=0

Step-by-step explanation:

The value of x that will give the maximum value for the function -x² - 6x + 12 is x = -3.

To find the value of x that will give the maximum value for the quadratic function -x² - 6x + 12, we can determine the vertex of the parabola represented by the function.

The vertex of a quadratic function in the form of f(x) = ax² + bx + c can be found using the formula x = -b / (2a).

Here, a = -1 and b = -6.

x = -(-6) / (2 × -1)

x = 6 / -2

x = -3

Therefore, the value of x that will give the maximum value for the function -x² - 6x + 12 is x = -3.

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what is the slope of the line on the graph

Answers

Answer:

the slope is -1/3

Step-by-step explanation:

point 1 = (0,4)

point 2 = (6,2)

m= y2-y1/x2-x1

m = 2 - 4/ 6- 0

m = -2/6

m = -1/3

Answer:

-3

Step-by-step explanation:

Slope = rise over run

or

Slope = (x2-x1)/(y2-y1)

We'll use the second version. Choose any 2 points on the line. We'll choose (6, 2) and (-6, 6).

Then choose which x-coordinate is x2. and the corresponding y-coordinate is y2. x2=6, so y2 = 2. Then the other two are your 1's. x1=-6, y1 = 6.

plug in the numbers to get a solution.

(6-(-6))/2-6

subtracting a negative makes it addition, so...

(6+6)/-4

12/-4

Slope = -3

A pitcher's earned run average is the number of earned runs allowed per game of 9 innings. A pitcher allows 20 earned runs in 50 innings. What is the pitcher's earned run average?

Answers

Answer:

Step-by-step explanation:

In baseball statistics, earned run average (ERA) is the average of earned runs given up by a pitcher per nine innings pitched (i.e. the traditional length of a game). It is determined by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine.

The pitcher's earned run average is 3.6.

We are given that;

Number of innings=9

Now,

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

Unitary method is a technique by which we find the value of a single unit from the value of multiple devices and the value of more than one unit from the value of a single unit. It is a method that we use for most of the calculations in math.

To find the pitcher's earned run average, we need to divide the number of earned runs by the number of innings, and then multiply by 9.

This is because we want to find the average number of earned runs per 9 innings, which is the standard length of a game.

Using this method, we get:

[tex]$\frac{20}{50} \times 9 = 3.6$[/tex]

Therefore, by unitary method answer will be 3.6.

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3. Hassan helps his dad with newspaper deliveries. He gets $5 every morning and 10 cents for every paper delivered. Hassan earned $20.60 one morning. He wondered how many papers he delivered.
(a) Define the unknown in the scenario and assign it a letter or symbol.
(b) Write an equation to represent the amount of money Hassan earned.
pls help this is worth a little more than 10 pts bc itssoo important to be answered correctly, thx!

Answers

Step-by-step explanation:

l56 papers were delivered

Answer:156

Step-by-step explanation:20.60- 5= 15.60

15.60 divide by .10 (cents) is 156 papers delivered

Mia has $50 on a gift card to her favorite coffee shop. Each time she visits the coffee shop she spends $3.75 on her favorite drink. Write and equation to represent the relationship between x, the number of times she visits the coffee shop, and y, the total amount on her gift card.

Answers

Answer:

Step-by-step explanation:

50=3.75x

3.75x=50 is equation to represent the relationship between x.

What is Equation?

Two or more expressions with an equal sign is called as Equation.

Given that,

Mia has $50 on a gift card to her favorite coffee shop.

Whenever Mia  visits the coffee shop she spends $3.75 on her favorite drink.

We are required  to write the relationship between x and y the total amount on her gift card.

3.75x=50

Now we need to find the total amount on her gift card.

Divide both sides by three point seven five

x=50/3.75

When we calculate the value of 50/3.75 we get 13.33.

x=13.33

Therefore 3.75x=50 is the required relationship between x and y, the total amount on her gift card.

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Bob and Cheryl are taking a road trip that is 183.20 miles. Bob drove 3/4 of the total distance. How many miles did bob drive?

Answers

Answer:

137.4

Step-by-step explanation:

The answer:
The answer is 137.4
Explanation:

Solve for z:

25z+85=90

z=
this confuses me and I need help ;-;

Answers

z=1/5

Subtract 85 from both sides which gets you 25z=5.


Divide both sides by 25 which is z=5/25

Simplify which gives us the answer z=1/5.

Answer:

1/5 or 0.2

Step-by-step explanation:

25z+85=90. subtract 85 from both sides. 25z=-5. divide by 25. z=1/5 or 0.2

Question is down below here ⬇️ PART 4

Answers

Answer:

4x+11

Step-by-step explanation:

pls I need help with my math

Answers

Answer: not sure

Step-by-step explanation:

Answer:

1. False

2. y=5x+9

Step-by-step explanation:

wich expression is equivalent to 19/39
A 13÷1/19
B 19÷1/19
C 19÷1/39
D 39÷19
HURRY I KNOW WHEN YOU LIVING ABOUT THE ANSWERS IF YOUR ITS WRONG JUST DONT ANSWER AT ALL IF YOU DONT KNOW IT!
:)

Answers

Answer:

D 39 divided by 19
39/19 D was an Answers

Compare the fractions in each pair. Select the correct sign.

Answers

Answer:

<

Step-by-step explanation:

Im pretty sure thats the answer lol just use Math-way its an app

Answer:

The second one is greater

Step-by-step explanation:

What is the simplified form of the expression?
Please hurry I am timed!

Answers

Answer:

The answer is the fourth one!

=7c^2d-7c+4d-10

Answer: D

Step-by-step explanation:

the answer is the fourth one

Alex wants to buy a case of drinks, he doesn’t have enough. The cost of the case is $30. He already has $2. He gets $8 every hour for work. How many hours does he need to work to get the amount he needs?
Example:
3x + 12 ≤ 35
3x + 12 - 12 ≤ 35 - 12
3x ≤ 23
3x/3 ≤ 23/3
X≤ 7.6667
(solve it like that please) ASAP

Answers

Answer:

So the answer is 3 and an half of a hour(3.5 hours)

Step-by-step explanation:

$8 times 3 = 24 + the $2 he has =$26 + half an hour($4) =$30

8 times 3 = 24

plus $2 = $26

since he gets $8 for an hour of work and we only need $4, we can make him work half an hour

so $26 + $4 =$30

SOME ONE PLEASE HELP ME ANSWER THIS QUESTION ASAP
(04.01)

Points (−3, 5) and (3, 5) on the coordinate grid below show the positions of two players on a tennis court:

A coordinate plane is shown. There is a point at 3, 5 labeled Player 2. There is a point at negative 3, 5 labeled Player 1.

Which statement best describes the relationship between the positions of the two players?




Player 2's position is Player 1's position reflected across the y-axis; only the signs of the y-coordinates of Player 1 and Player 2 are different.

Player 2's position is Player 1's position reflected across the x-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.

Player 2's position is Player 1's position reflected across the x-axis; only the signs of the y-coordinates of Player 1 and Player 2 are different.

Player 2's position is Player 1's position reflected across the y-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different

Answers

Answer:

Player 2's position is Player 1's position reflected across the y-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.

Step-by-step explanation:

Since the points are on opposite sides of the y-axis that means the two answers about the x-axis don't work because for those answers to work the points would have to be on either side of the x-axis. From there, you can say, okay which coordinate in the two points didn't stay the same. Since 3 didn't stay the same (one is negative, one is positive) and it is in the x-coordinate position (x,y), you know that the first answer doesn't work either.

Answer:

4

Step-by-step explanation:

Player 2's position is Player 1's position reflected across the y-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.

Rebekah has $400 to spend on a video game system and games. The system cost $289.99 and each game costs $32.29. How many games can she buy with the game system?

A- No more than 2 games
B- No more than 3 games
C- No more than 4 games
D- No more than 5 games

Answers

Answer:

B- No more than 3 games

Step-by-step explanation:

add 32.29 to 289.99 until you get close to 400 without going over 400.

To find the number of distributed quantities, division operator is used. She can buy 3 games.

What is Division ?

Division is process of dividing two numbers. The result of division is the  quotient and the remainder. When remainder is zero, the factors of a number are found.

Total amount to be spent on game system and games = $400.

The cost of the system = $ 289.99

The cost of each game = $ 32.29

Thus, the total amount left for buying games is the difference of the total amount and the cost of the system.

It is given as follows,

Amount left for buying games = 400 - 289.99

                                                  = $ 110.01

Now, total number of games to be bought can be calculated by dividing the remaining amount by the rate of each game as below,

Total number of games = 110.01/32.29

                                       = 3.406

Since the number of games cannot be a decimal value, approximate 3.406 to 3.

Hence,  the number of games Rebekah can buy is 3.

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Let f(x)=2x^4+x^3+x^2-3x+r. For what value of r is f(2)=0?

Answers

Answer:

the answer is 0

Step-by-step explanation:

Answer:

r = -38

Step-by-step explanation:

For what value of r in the formula:  f(x)  =  2x4 + x3 + x2- 3x + r  does  f(2)  =  0?

Replace x with 2:  2·24 + 23 + 22- 3·2 + r  =  32 + 8 + 4 - 6 + r  =  38 + r

This value is to equal 0:   38 + r  =  0

                                                r  =  -38

Miguel's book has 208 pages. Kristen's book has n fewer pages than Miguel's book. Write an expression to represent the number of pages in Kristen's book.
Please explain!

Answers

It’s 208 - n. Since Kristen’s book has less pages that Miguel, your answer for Kristen should be less than Miguel. It shouldn’t be more than Miguel. Also, we don’t know what n equals to. It can equal to whatever numbers there are out there. So your expression shouldn’t be evaluated, since it isn’t an equation, which is different. Hope this helped! :D

The correct expression to represent the number of pages in Kristen's book is, (208 - n)

What is mean by Subtraction?

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

We have to given that;

Miguel's book has 208 pages.

And, Kristen's book has n fewer pages than Miguel's book.

Here, Miguel's book has 208 pages.

Hence, The number of pages in Kristen's book = 208 - n

Thus, The correct expression to represent the number of pages in Kristen's book is, (208 - n)

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What is the equation of line A?


What is the equation of line B

Answers

Answer:

3.5 and 7.5

Step-by-step explanation:

Line A is a straight line parallel to the x-axis.

Parallel to the x-axis means that x = 0.

Line B is a straight line parallel to the y-axis.

Parallel to the y-axis means that y = 0.

The equation of line A is y = 3.5.

The equation of line B is x = 7.5.

What is an equation of a line?

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

From the graph, we see that,

Line A and Line B are both straight lines.

Line A is a straight line parallel to the x-axis.

Parallel to the x-axis means that x = 0.

Line B is a straight line parallel to the y-axis.

Parallel to the y-axis means that y = 0.

So,

The equation of line A is the point of the y-intercept.

y = 3.5

The equation of line B is the point of the x-intercept.

x = 7.5

Thus,

The equation of line A is y = 3.5.

The equation of line B is x = 7.5.

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The graph shows the amount of money paid when purchasing bags of candy at the zoo: A graph is shown. The x-axis is labeled from 0 to 9. The y-axis is labeled from 0 to 10. The four points shown on the graph are ordered pairs 0, 0 and 1, 2 and 2, 4 and 3, 6. These points are joined by a line. The label on the x-axis is Bags of candy. The title on the y-axis is Total cost in dollars. Write an equation to represent the relationship between the total cost (y) and the number of bags of candy (x). y = one-half x y = 2x y = 3x

Answers

Answer: y = 2x

The total cost in dollars will always be 2 times the amount of candy bags.

Solve the equation: −3( 1 + 6r ) = 14−r−3( 1 + 6r ) = 14 − r

Answers

Answer:

r=14

Hope this helps :)

R=14

Hope that helped

ITS INFINET KAHHOT !!!!!!!!!!!!!

Answers

Answer:

(1,0)

Step-by-step explanation:

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