Only 1/9 enrolled students in a school were absent. There were 4512 students present. How many students are enrolled in the school?

Answer:

Step-by-step explanation:

%of water=70%(100-30)

percent to be attained=86%(100-14)

difference in %=86-70%

=16%

literes of water=16%of 125l=20literes

hope this helps

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Answer:

197676 diff possible ways

Step-by-step explanation:

Combination because order doesn't matter.

19!/(19-5)!*5!=19!/14!*5!=19*18*17*16*15*14!/14!*5!=19*18*17*17*16*15/5!=23721120/5*4*3*2=23721120/120=197676

Look at the attached picture

Hope it will help you

Answer:

a = 4

Step-by-step explanation:

In an equation our aim is to find the value of what we are looking for as well as keeping the equation balanced. For example if we took away 8 only from one side then the equation would change so it's an important rule to keep in mind when solving equations, that you need to keep both sides of the equation the same.

4 (2 + a) = 24

→ Expand the brackets

8 + 4a = 24

→ Minus 8 from both sides to isolate 4a

4a = 16

→ Divide both sides by 4 to isolate a and therefore find the value of a

a = 4

→ We can substitute a = 4 back into 4 (2 + a) = 24 to see if we have the correct solution, if we end with the same number on both sides then a =4 is correct.

4 (2 + a) = 24

4 (2 + 4) = 24

4 × 6 = 24

24 = 24

So a = 4 is correct

4 (2

Answer:

The depth of water at 5:00 is 4.5 ft.

Step-by-step explanation:

Depth of water at 1:30 PM = 2.4 ft

Depth of water at 4:00 PM = 3.9 ft

Change in time = 4 - 1:30 = 2.5 hours

Depth increased in 2.5 hours = 3.9 - 2.4 = 1.5 ft

Now, we are given that the depth of water is increasing linearly, so after 4:00 PM as well, the water depth will keep on increasing with the same rate as that of previous time intervals.

We have to find out the depth at 5:00 PM i.e. we need to find out the increase from 4:00 PM to 5:00 PM (1 hour) and then add it to depth at 4:00 PM.

Depth increased in 2.5 hours = 1.5 ft

Depth increased in 1 hour = 1.5 / 2.5 = 0.6 ft

Depth at 5:00 PM = Depth at 4:00 PM + Depth increased in 1 hour

[tex]\Rightarrow[/tex] 3.9 + 0.6 = 4.5 ft

Depth increased in 2.5 hours = 1.5 ft

So, The depth of water at 5:00 is 4.5 ft.

The depth of water at 5:00 is 4.5 ft.

Given that,  

Now  

Depth increased in 2.5 hours is

= 3.9 - 2.4

= 1.5 ft

Depth increased in 1 hour = [tex]1.5 \div 2.5[/tex] = 0.6 ft

Depth at 5:00 PM = Depth at 4:00 PM + Depth increased in 1 hour

= 3.9 + 0.6

= 4.5 ft

Learn more: https://brainly.com/question/25914450?referrer=searchResults

Answer:

j= -0.4

Step-by-step explanation:

multiply both sides by 60

=45j(+12)=30-12

take the 12 ti the right hand side and the sign changes

= -45j=18 then divide by 45 on both sides

j= -2/5

j= -0.4

Answer:

X=-2.45

Step-by-step explanation:you have to combine the x's which gives you -11x-2=25 so then you have to add two to 25 and it leaves you with -11x=27 and then you just divide 27 by -11 and x is -2.45

Answer:

x = -5

Step-by-step explanation:

start with factoring

-x^2 - 10x - 25 = 0 (i moved 25 to the left side)

then you can multiply the entire equation by -1 to get rid of the negative sign

x^2 + 10x + 25 = 0

now 5x5 = 25 and 5+5 = 10.

so (x^2 + 5x + 5x + 25) = 0

x(x+5) 5(x+5) = 0

(x+5)(x+5) = 0

(x+5)^2 = 0

so x = -5

Answer:

In order to find the surface area, you will need to add up the areas of each face of the prism. ... In this prism, the length is also the side of the hexagon, and the width of the rectangle is the height of the prism. Now, multiply the area of the rectangle by to find the total area of all of the sides of the prism.

Step-by-step explanation:

Answer:

In Crista’s class, 8 students have blonde hair, 14 have brown hair, 3 have black hair, and 2 have red hair. If one student is chosen at random, it is  

that the student has blonde hair, it is  

that the student has brown hair, it is  

that the student has black hair, and it is  

that the student has red hair.

Answer:

In Crista’s class, 8 students have blonde hair, 14 have brown hair, 3 have black hair, and 2 have red hair. If one student is chosen at random, it is

unlikely

that the student has blonde hair, it is

neither likely nor unlikely

that the student has brown hair, it is

unlikely

that the student has black hair, and it is

unlikely

that the student has red hair.

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

The mean is the average of the numbers. Add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

7 + 14 + 7 + 16 + 16 = 60

60 / 5 = 12

Answer:

45 feet

Step-by-step explanation:

To find the hypotenuse of that triangle, you would have to do 81-28, because that's the portion that snapped. That equals 53.

Then, we can apply the Pythagorean theorem: a^2+28^2=53^2

a^2=2025

a=45

Therefore, 45 feet

I hope this helped! Have a good rest of your day!

Answer:

Plan Q cost $18.9 and it is less expensive by $0.9

Step-by-step explanation:

Cost of Phone Q=$10+$0.14 per minute

Cost of phone R=$7+$0.17 per minute

Let m=number of minutes

If Anthony talks for 70 minutes

Cost of Q=$10+$0.14(m)

=$10+$0.14(70)

=$10+$9.8

=$19.8

Cost of phone R=$7+$0.17(m)

=$7+$0.17(70)

=$7+$11.9

=$18.9

Plan Q cost $18.9 and it is less expensive by $0.9

Answer:

Cylinder Q has a greater volume

Step-by-step explanation:

For this question we need to utilise the volume of a cylinder which is

→ Volume of a cylinder = π × r² × h

Let's substitute in the values and then do the analysis

Cylinder P

→ Volume of a cylinder = π × r² × h

⇒ Substitute in the values

→ Volume of a cylinder = π × 4.25² × 14

⇒ Simplify

→ Volume of a cylinder = 794.430242277

The volume of cylinder P is 794.430242277

-------------------------------------------------------------------------------------------------------

Cylinder Q

→ Volume of a cylinder = π × r² × h

⇒ Substitute in the values

→ Volume of a cylinder = π × 7² × 8.5

⇒ Simplify

→ Volume of a cylinder = 1308.47334022

The volume of cylinder Q is 1308.47334022

-------------------------------------------------------------------------------------------------------

We can see that cylinder Q has a greater volume

Answer:

28 more people to reach 450

Step-by-step explanation:

450/7≈65(the total number of money the need divided by ticket price to see how many total people they need)

37*7=259 (the people they have already gotten times ticket price to find how much more they need)

450-259= 191 (what they need altogether miinus what they already have)

191/7≈28 (how much more money they need divided by ticket price, 28 is more ticket they need to sell)

does this make sense

Answer:

Step By Step Explanation:

Answer:

A) 2x3y + 7y2x − 3x2 − 12y

Answer: 45 degrees

Step-by-step explanation:

The blades of the fan align at 0, 45, 90, 135, 180, 225, 270 and 315.

If you move the blades 45 degrees the fan's blades will be in the same position as the one before them

Sorry if I didn't explain it well, comment and I'll try to explain better

Answer:

6/36  

Step-by-step explanation:

Trust me I got it right on Khan academy :)

Answer:

6/36

Step-by-step explanation:

I got it right too on khan academy

The value of b is -1

look at the attached picture

Hope it will you

Good luck on your assignment

Answer:

w^2+9w+20

Step-by-step explanation:

Apply the FOIL METHOD: (a + b) (c + d) = ac + ad + bc + bd

a = 5        

b = w        

c = w            

d = 4

= 5w + 5 x 4 + ww + w x 4

= 5w + 5 x 4 + ww + 4w

Simplify 5w + 5 x 4 + ww + 4w:

w^2 + 9w + 20

Answer:y=50

Slope is zero

Step-by-step explanation:

50-50/25--25=0/50=0

Answer: y=50

Step-by-step explanation:

did it on edge 2020

Answer:

Step-by-step explanation:

sum of angles of a polygon=(n-2)*180

S=(n-2)*180

n=13

S=(13-2)*180

=11*180

=1980°

2.

sum of angles=95+140+120+75+130+115+80

=750

again sum of angles of a heptagon=(7-2)×180

=5×180

=900

so these can,t be angles of heptagon.

3.

external angle of heptagon=360÷10=36

internal angle=180-36=144°

it is a convex polygon.

4.

external angle=360÷9=40°

internal angle=180-40=140°

it is a convex polygon.

5.

external angle=360÷5=72°

internal angle=180-72=108°

it is a convex polygon.

Answer:

The equation of the axis of symmetry for this parabola is x = 0.

Step-by-step explanation:

For parabola's, it's axis of symmetry always goes through the vertex of the parabola. In other words, the axis of symmetry is vertical line that goes through the x-coordinate of the vertex.

Now, the vertex is given as (0,3) which is at x = 0, y = 3.

Thus, the vertical line that goes through the x-coordinate of the vertex will be x = 0

Thus, the equation of the axis of symmetry for this parabola is x = 0.

Answer:

Coca cola bottles = 6

Milk bottles = 14

Jellybeans = 10

Step-by-step explanation:

We are given that a bag of sweets contains coca cola bottles, milk bottles and jellybeans.

The ratio of these sweet bottles is given as,

3:7:5

It is known that there are 6 coca cola bottles.

We are asked to find the quantity of milk bottles and jellybeans.

Coca cola bottles:

Since the ration is 3:7:5

3 parts of coca cola bottle = 6

1 part of coca cola bottle = 6/3 = 2

Milk bottles:

So 7 parts of milk bottle = 7*2 = 14

Jellybeans:

So 5 parts of milk bottle = 5*2 = 10

Therefore,

Coca cola bottles = 6

Milk bottles = 14

Jellybeans = 10

Verification:

6:14:10

Simply the ratio by dividing it with 2

3:7:5

Which reduces to the given ratio hence results are correct.

Answer:

i dont get it

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:Explanation: The formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. If a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

Step-by-step explanation:

The circle equation has a center located at (2, 5) and passes through the point (10, 3) is (x - 2)² + (y - 5)² = 68

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

The circle has a center located at (2, 5) and passes through the point (10, 3), hence:

[tex]Radius=\sqrt{(3-5)^2+(10-2)^2}=8.25[/tex]

The equation of the circle is:

(x-2)² + (y-5)² = 8.25²

(x - 2)² + (y - 5)² = 68

The circle equation has a center located at (2, 5) and passes through the point (10, 3) is (x - 2)² + (y - 5)² = 68

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

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Answer:

distributive property

Answer:

associative property

Step-by-step explanation:

The associative property states that you can reorder or regroup numbers and still get the same answer.  In this example, we are regrouping the numbers (parenthesis around different numbers)

Answer:

6/95

Step-by-step explanation:

First, let's find the total # of outcomes. There are 8+6+4+2 = 20 marbles in the bag. We have 20 options for the first draw, and 19 for the second. 20*19 = 380 total possible outcomes.

Now, let's fin the successful outcomes. There are 4 red and 6 blue marbles, so 4 for the firs tpick and 6 for the second pick. 4*6 = 24 successful outcomes. To find probability, we do successful outcomes/total outcomes, and in this case, that is 24/380, or 6/95. Hope that helps!

Answer:

Step-by-step explanation:I don't say you have to mark my ans as brainliest but my friend if it has really helped you plz don't forget to thank me...

A

Step-by-step explanation:

Step-by-step explanation:

Step 1:  Add 13x to both sides

[tex]x^2 + 13x = -13x + 13x - 4[/tex]

[tex]x^2 + 13x = -4[/tex]

Step 2:  Add 4 to both sides

[tex]x^2 + 13x + 4 = -4 + 4[/tex]

[tex]x^2 + 13x + 4[/tex]

Step 3:  Use Quadratic Formula

[tex]x = \frac{ -b \pm \sqrt{ b^2 - 4ac } }{2a}[/tex]

[tex]x = \frac{ -(13) \pm \sqrt{ 13^2 - 4(1)(4)} } { 2(1)}[/tex]

[tex]x = \frac{-13 \pm \sqrt{153}}{2}[/tex]

[tex]x = \frac{-13\pm3\sqrt{17} }{2}[/tex]

Answer:  [tex]x = \frac{-13\pm3\sqrt{17} }{2}[/tex]

Answer:

-0.3 and - 12.7

Step-by-step explanation:

Rewrite in quadratic form:

x2 + 13x + 4 = 0

The best approximations, given the options, are 0 and - 13

The actual solution is -

Answer:

The answer would be A. $7.00!

Step-by-step explanation:

To find range subtract the lowest amount from the highest, the difference will be your answer.