The ratio of children to teachers at a preschool is 14:5. How many children are at the preschool if there are 30 teachers?

Answers

Answer 1

Answer:

14          30

-----  =  ------

5

cross multiple 30(5)=150

divide 150/14= 10.7142857

idk if they want you to round but

11 or

10.7


Related Questions

Who here got zoom and can do math?

Answers

Not me I do not have it

lol no use meeting. But zoom is good too.

In triangle QRS the measure of right angle S is SQ=90 degrees Sq=47 feet and Rs=70 feet. Find the measure of angle R to the nearest tenth of a degree

Answers

Answer:

x=33.9°

Step-by-step explanation:

Trigonometric Ratios

In a right triangle, i.e. the triangles that have an internal angle of 90°, the so-called trigonometric ratios are valid.

There are six trigonometric ratios that can be used in right triangles, depending on the data available for each problem.

The current question gives us two sides in a right triangle and requires us to calculate the angle x.

The angle x 'looks' at the sides of the triangle in this way: RS=70 is the adjacent leg, SQ=47 is the opposite leg, and RQ is the hypotenuse.

We should use the trigonometric ratio that relates both the adjacent and the opposite led. There are two possibilities: The tangent and the cotangent. We'll use the tangent for no particular reason.

The tangent of an angle is defined as:

[tex]\displaystyle \tan\x=\frac{\text{opposite leg}}{\text{adjacent leg}}\\[/tex]

Use the given values:

[tex]\displaystyle \tan x=\frac{47}{70}=0.6714[/tex]

Using a calculator (in degree mode), we calculate the angle:

[tex]x=\tan^{-1}(0.6714)=33.9^\circ[/tex]

x=33.9°

Which statement is true?(n+4)-7=18

Answers

Answer:

21

Step-by-step explanation:

(21 plus 4)=25

25 minus 7=18

~~~How I got 21~~~

I find the number that will be reasonable like 20 and work my way up

~~~Hope this helps~~~

Answer:

[tex](n+4)-7=18 \\ n = 18 + 7 - 4 \\ n = 21.[/tex]

5x-25=-10

Please HELP

Answers

= 5x - 25 = -10

= 5x = -10 + 25 ( transposing-25 from LHS to RHS changes -25 to +25 )

= 5x = 15

= x = 15 ÷ 5 ( transposing ×5 from LHS to RHS changes ×5 to ÷5 l

= x = 3

Let us check whether or not we have found out the correct value by keeping 3 in the place of x :

= 5 × 3 - 25 = -10

= 15 - 25 = -10

= -10 = -10

LHS = RHS

We have found out the correct value of x .

Therefore x = 3 .

Three minus twice a number x is greater than fifty-five. Write an inequality to represent this statement.

Answers

Answer:

2x - 3 > 55

Step-by-step explanation:

the answer is above

what is the volume of 2 G piece of gold? (Best answers gives brainlist answers)​

Answers

Answer:

2 grams

Step-by-step explanation:

2 grams of gold is equivalent to 2 grams

6x-2x+11= -5

xs are unknown, not multiply.​

Answers

X=-4
Pls mark me brainliest

Step-by-step explanation:

6x-2x+11=-5. 6x-2x=-5-11. 4x=16 4x/4=16/4. x=4

Solve the system by substitution.
y=-x^2+2x+10
y=x+4

Answers

Answer:

x=3, y=7

x=-2, y=2

Step-by-step explanation:

System of Equations

We have the following equations:

[tex]y=-x^2+2x+10[/tex]

[tex]y=x+4[/tex]

We'll solve it by substitution. Since the second equation is already solved for y, we use that expression and substitute into the first equation:

[tex]x+4=-x^2+2x+10[/tex]

Since this is a quadratic equation, it's convenient to have all terms to one side:

[tex]x+4+x^2-2x-10=0[/tex]

Simplifying and reordering:

[tex]x^2-x-6=0[/tex]

Factoring:

[tex](x-3)(x+2)=0[/tex]

Solving:

x=3, x=-2

Those yield to two solutions for y:

y=x+4

y=7, y=2

The solutions of the system are:

x=3, y=7

x=-2, y=2

what is 6 1/4 divided by 6 1/2?

Answers

So uh this came up , I hope this helps

(x7) - 3 = 4
Find what X = ?

Answers

Answer:

1

Step-by-step explanation:

add 3 to 4

(1x7)= 7

a cell phone company charged 49.95 per month plus 0.05 per call minute i used 200 call minutes last month proportional or not proportional

Answers

Answer:

Not sure what you are asking here but the answer is $59.95

Step-by-step explanation:

$49.95 + (10 * 0.05)

Find:1/15÷4/120
Select one:
A. 4
B. 1
C. 3
D. 2​

Answers

Answer:

D) 2

Step-by-step explanation:

1/15×120/4

1/15×30

1×2

2

The answer is D. 2
Hope this helps :)

If an automobile slows from 26MS to 18 MS in a period of 4.0 S what was the average acceleration

Answers

11 because if you add everything in total and then you should divide it with the given time and you get the answer

which expression is equivalent to -1/2(3- 2/5)

A. -3/2 - 1/5
B. -3/2 + 1/5
C. -3 1/2 - 1/5
D. -3 1/2 + 1/5

Answers

Answer: -3 1/2 - 1/5

What equation results from completing the square and then factoring?
x2 + 2x = 9

Answers

Answer: (x+1)^2=10

Step-by-step explanation:

David is building a toy box. Its length will be 4 feet, its width will be 2.5 feet and its height will be 2 feet. What will the volume of the toy box be?

Answers

Answer:

the answer to this would be this 20 ft

Step-by-step explanation:

you would this by taking 4 times 2.5 times 2 and you would get the answer of 20 ft for the volume.

It would be 20 ft hope that helped <3

What are the measures of angle A,B,C and D?

Answers

A) 35 B) 50. C) 85. D) 30

Do want me to explain it too?
I only one of those are 35

What percent do you actually pay if 40% discount

Answers

Answer:

60%

Step-by-step explanation:

A 40% discount means that 40% will be off, meaning you won't have to pay 40% of the original price. Therefore, you only pay 60% of the original price (100% - 40% = 60%).

PLZ HELP WILL VOTE BRAINIEST

Answers

x + 1

Combine like terms, so terms with x go together and terms without an x go together

So 2x - x = x
3 - 2 = 1
That's as simplified as it can be

x + 1

Combine like terms, so terms with x go together and terms without an x go together

So 2x - x = x

3 - 2 = 1

That's as simplified as it can be

Brainiest please

You track inventory at a furniture store. On Monday, the delivery truck delivers 15 new mattresses. Your team sells seven mattresses on Monday, two mattresses on Tuesday, zero on Wednesday, and five on Thursday. You receive a new order Friday morning of 15 mattresses. How many mattresses do you now have available?

Answers

Answer: 16

Step-by-step explanation: You started with 15 , you lose 7 Monday which leaves you with 8 , 2 on Tuesday which leaves you with 6 , 5 on Thursday which leaves you with 1 and then you received 15 on Friday which brings you to 16

The number of mattresses available now is 16.

Given that, On Monday, the delivery truck delivers 15 new mattresses. Number of mattresses sold on Monday=7, number of mattresses sold on Tuesday=2, number of mattresses sold on Wednesday=0, and number of mattresses sold on Thursday=5.

What is an equation?

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side. In every equation in math, we have, L.H.S = R.H.S (left hand side = right hand side). Equations can be solved to find the value of an unknown variable representing an unknown quantity.

Let number of mattresses do you now have available be x.

Given that, receive a new order Friday morning of 15 mattresses.

So, x=15-(7+2+0+5)+15

=30-14=16

Therefore, the number of mattresses available now is 16.

To learn more about an equation visit:

https://brainly.com/question/1529522.

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3. The daily surface concentration of carbonyl sulfide on the Indian Ocean is normally distributed, with a mean of 9.1 picomoles per liter and a standard deviation of 3.5 picomoles per liter. Find the probability that on a randomly selected day, the surface concentration of carbonyl sulfide on the Indian Ocean is less than 13.5 picomoles per liter.

Answers

Answer:  0.8956

Step-by-step explanation:

Given: The daily surface concentration of carbonyl sulfide on the Indian Ocean is normally distributed, with a mean [tex]\mu=100[/tex] picomoles per liter and standard deviation of [tex]\sigma=3.5[/tex] picomoles per liter.

Let X be the daily surface concentration of carbonyl sulfide.

The probability that on a randomly selected day, the surface concentration of carbonyl sulfide on the Indian Ocean is less than 13.5 picomoles per liter [tex]= P(X<13.5)[/tex]

[tex]=P(\dfrac{X-\mu}{\sigma}>\dfrac{13.5-9.1}{3.5})\\\\=P(Z<1.257)\\\\= 0.8956\ \ \ [\text{By p-value table}][/tex]

Hence, the required probability =  0.8956

Sarah has a credit card balance of $9,450 with an APR of 17%. With her current budgeted payment, Sarah will be able to pay off this debt in 36 months. But Sarah’s best friend just invited her to spend two months in Europe with her in 9 months. Wanting to have her credit card balance paid off before she goes to Europe, Sarah decides to take on a second job. What additional monthly income will Sarah need in order to pay off her credit card in 9 months?

Answers

Answer:

C

Step-by-step explanation:

Which of these statements is not one of Euclid axioms

Answers

Answer:

Things which are equal to the same thing are also equal to one another. If equals be added to equals, the wholes are equal. If equals be subtracted from equals, the remainders are equal. Things which coincide with one another are equal to one another.

There is a sidewalk of width x around a rectangular garden. If the garden measures twenty-feet by thirty-feet, then the combined area of the garden and sidewalk is

Answers

Answer:

Area = 200 + 50 + x

Step-by-step explanation:

Given

Length = 20

Width = 30

Side Walk = x

Required

Determine the area.

To do this we need to get the new worth and length by adding the length of the sidewalk.

This gives:

Length = 20 + x.

Width = 30 + x

So, area becomes.

Area = (20 + x)(30 + x)

Area = 600 + 20x + 30x + x²

Area = 200 + 50 + x²

What is the distance between (1, -4) and (1, 18)?
O 2 units
O 5 units
19 units
22 units

Answers

Answer:

22 units is the correct answer

l

The distance between (1, -4) and (1, 18) is 22 .The correct option is 4

What is the distance between two points ( p,q) and (x,y)?

The shortest distance (length of the straight line segment's length connecting both given points) between points ( p,q) and (x,y) is:

 [tex]D = \sqrt{(x-p)^2 + (y-q)^2} \: \rm units.[/tex]

Substituting the values of the coordinates in the distance formula;

 D = [tex]\sqrt{(1-1)^{2}+(18+4)^{2} }[/tex]

     =[tex]\sqrt{(0)^{2} + (22)^{2} }[/tex]

     = [tex]\sqrt[n]{484}[/tex]

      = 22

So, 22 units is the right answer.

Learn more about distance between two points here:

brainly.com/question/16410393

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Yoko made $242 for 11 hours of work.
At the same rate, how much would she make for 7 hours of work?

Answers

Answer:

$154

Step-by-step explanation:

Find the rate per hour as;

if  11 hours =$242

     1 hour =?

Perform cross product as:

{$242 *1} / 11 = $22

For 7 hours the amount made will be:

7* $22 = $154

A new dining room is being built in Carol’s home. In a scale drawing of the room, 1 inch represents LaTeX: 2\frac{1}{2}212feet. A sketch of the drawing is shown​

Answers

Answer/Step-by-step explanation:

Area of the dinning room table:

Given that scale of the sketch is 1 in = 2½ ft

Length of the dinning room table on the sketch = 2 in

Actual length of dinning room table = 2 × 2½ = 5 ft

Width of the dinning room table on the sketch = 1 in

Actual width of dinning room table = 1 × 2½ = 2.5 ft

Area of dinning room table = length × width = 5 × 2.5 = 12.5 ft²

Area of the dinning room:

Given that scale of the sketch is 1 in = 2½ ft

Length of the dinning room on the sketch = 7⅕ in

Actual length of dinning room = 7⅕ × 2½ = 18 ft

Width of the dinning room on the sketch = 4⅘ in

Actual width of dinning room = 4⅘ × 2½ = 12 ft

Area of dinning room = length × width = 18 × 12 = 216 ft²

Area of the dinning room not covered by the table = area of the dinning room - area of the dinning room table

= 216 - 12.5 = 203.5 ft²

Greg has a table that is 3.75 meters in length. He wants to make a tablecloth that is 20 centimeters longer on each end than the table. What steps should Greg use to determine the correct number of centimeters to make the tablecloth

Answers

Answer:

Use (3.75×100/1) and then add 40.

Step-by-step explanation:

I hope you pass. Can you mark me the Brainliest?

In 9.3 x 10-8 the exponent is a negative number. Which of these describes the value of a number in scientific notation that includes a negative exponent

Answers

Answer:

0.000000093

Step-by-step explanation:

Theres seven zeros after the decimal

Let x be Bob's age. Heather is 5 years younger than Bob. Write an expression for Heather's age.

Answers

Answer:

x-5

Step-by-step explanation:

since we don't know bob's age, x will represent it. we know that heather is 5 years YOUNGER than bob.

x (bob's age) - 5 (because that's how many years heather is younger than bob is)

hope this helps :D

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