Mathematics High School

A girl answered 38 questions on a reading app named lightsail.
The system indicated that she was 60% complete
How many questions are there in total?

Answers

Answer 1

Answer:

its either 63 or 64, im not really sure

Related Questions

A rectangular paddock has perimeter 100 m. Find the width of the paddock if its length is 30 m.

Answers

Answer:

Step-by-step explanation:

W= L x 2/P

= 30 x 2/ 100

= 60 /100 = 0.6

-3/4x=-5

Please help fast!!!

Answers

Answer:

x=3.75

Step-by-step explanation:

-3/4x=-5

x-3    x-3

4x=15

/4   /4

x=3.75

Answer:

x = 3.75

Step-by-step explanation:

-3/4x = -5

(-3/4) -3/4x = -5(-3/4)

x = 3.75

Order the angles in each triangle from smallest to largest.

Answers

the answer is D

an easy way to think about it is considering the missing side from the measures given
for example LN = 17, the missing side is M so we know that the measure of angle M is 17, which is the smallest
for MN = 21, the missing side is L so the second smallest is angle L

Factor the following expression completely.

2x^2y-18y

Answers

Answer:

Since both terms are perfect squares, factor using the difference of squares formula,

a2-b2=(a+b)(a−b) where a=x and b=3.2y(x+3)(x−3)

Step-by-step explanation:

hope this helps!!!

Please help me! 20 points!
Enter your answer and show all the steps that you use to solve this problem in the space provided.

What is the simplest form of the radical expression?
(in attachment)

Answers

Basically the first part but with a minus in front of the 3

a²-a² what is the answer​

Answers

Answer:

a² - a² = 0

hope it helps

Answer:

a ² - a ²= 1 a ² - 1 a ² = 0

you understand ?

8r2 in fraction form

Answers

8r^2 eight r squared hope this is right

It is the simplest fraction form

Was wondering if anyone knows the answer to part A and B for this question?

Answers

Answer:

no idea

Step-by-step explanation:

Answer:

k so from my opinion

I think the answer is gonna be a

how to the medium in the dot line????!! I don't want my mom to be mad at my grade please!!!!!!

Thank you whoever helps me!

Answers

Answer: To find the median, count the dots from left to right until you find the middle value.

Step-by-step explanation:

Ok so first it's not a dot line it's a dot plot. Second, let's define what a medium is. The medium is the "middle" of a sorted list of numbers. To find the Median, place the numbers in value order and find the middle number. Example: find the Median of {13, 23, 11, 16, 15, 10, 26}. The middle number is 15, so the median is 15. Tip to find the median from a list of value ordered numbers every time cross a number from each side. For example, if you cross 13 from above also cross 26 and if you cross 23 then also cross 10.

Back to your original question of how to find the medium on a dot plot you need to take all the numbers from your dotted line put them in order even if they are repeated and then cross each one on each side from right to left. Also remember if you cross out all the numbers right and left and end up with two numbers left then take them and add them and then divide by 2 and that will be the median.

An example is attached on here in order to help you understand what I am saying. Hope this helps. Your welcome and I hope you make your mama proud.  

Maria ha invitado a 18 de sus compañeros de clase a su fiesta de cumpleaños .Si en total tiene 30 compañeros ,¿que porcentaje de la clase ha ido a su fiesta?

Answers

Answer:

59.9%

Step-by-step explanation:

100/30 = 3.3

3.3*18 = 59.9%

Miles and Lucy decide to sell lemonade to earn some money. They buy pitchers, ice, and mix for a cost of $13.50. The mix makes 8 quarts of lemonade. They decide to sell one cup of lemonade for $0.75. If they sell all 8 quarts, how much revenue will they make and will they make enough to earn $12 each? (4c=1q)

Answers

Answer:

Altogether they made $24 which is enough to earn $12 each

Step-by-step explanation:

Important information:

1 cup: $0.75

4 cups = 1 quart

8 quarts of lemonade altogether

If we are looking to solve for the revenue earned based on quarts, we must first solve for how much money they make on 1 quart

Since 1 cup sells for $0.75 and 4 cups makes up a quart, we must multiply

0.75 × 4 = 3

They make $3 per 1 quart

We are looking for the amount for 8 quarts though, not just 1. Again we must multiply

3 × 8 = 24

They will make $24 if they sell all 8 quarts

The questions ask if they will each earn $12

Since there are two of them, Miles and Lucy, we must divide revenue earned by 2, the number of people

24 ÷ 2 = 12

$12

¿Sera cierto que existe una fraccion con numerador 20 equivalente a la fraccion 100/55?Justifica tu respuesta​

Answers

Answer:

si porq si porq si si dices si es si

there are 16 appetizers available at a restaurant. From these, janet is to chose 13 for her party. How many groups of 13 appetizers are possible

Answers

Answer:

560

Step-by-step explanation:

The best way to do this is to write it out, but with large ones like this you should use the equation:

C(n,r) = n!/(r!(n-r)!),

where:

C(n,r) is the number of combinations;

n is the total number of elements in the set; and

r is the number of elements you choose from this set.

just the 11b. due in 12 hrs. Need this very soon. :) thx​

Answers

Answer:

28 litres of mango juice will be required

Step-by-step explanation:

11). b. Internal dimensions of the rectangular prism are,

         Length = 40 cm

         Width = 20 cm

         Height = 35 cm

         Volume of the rectangular prism = Length × Width × Height

                                                                 = 40 × 20 × 35

                                                                 = 28000 cm³

          Since, 1 cm³ = 1 mL

          Therefore, 28000 cm³ = 28000 mL

          Since, 1000 mL = 1 L

          28000 mL = 28 L

          Therefore, to fill this jar 28 L of orange juice will be required.

Which of the following is equivalent to 3^-8 × 3^4
3^-4
3^-2
3^-12
3^-32

Answers

i believe the answer is the first option

You select a marble at random and then put it back. If you do this eight times, what is the best prediction possible for the number of times you will pick a red marble?

Answers

Answer:

1/8

Step-by-step explanation:

Tyler has $415 in his savings Tyler has $415 in his savings account account. He earns $45 a week mowing lawns. Write and solve an equation.using b for the variable to find how many weeks will he to work to have $1315 saved?

Answers

Answer:

20 weeks

Step-by-step explanation:

1315$-415$=900$

900/45=20

Hence 20 weeks

Answer: 45b  

Step-by-step explanation: Divide 1315 with 45xb.

plz I need help on this really bad :(

Answers

Answer:

x+3y=4x+y

Step-by-step explanation:

Ming's school is selling tickets to a play. On the first day of ticket sales the school sold 8 adult tickets and 1 student ticket for a total of $95. The school took in $71 on the second day by selling 2 adult tickets and 7 student tickets. Define two variables for this situation. Write a system of equations to represent this situation. What is the price each of one adult ticket and one student ticket?

Answers

Answer:

Your answer.

8x + y = 95.........(1)

2x + 7y = 71........... (2)

Y = 95-8x........ (3)

Put this value in eq 2

Then x = 11

Put x value in eq 3

Y = 7

Thank you. And give my answer as Brainlist answer. Follow me for more

Step-by-step explanation:

13. Town officials are putting a pathway around a pool as shown below.
(4x+3)
pool
(2x-5) ft
deck
a) Determine the perimeter of the pool in terms of x. Write your answer in simple form and
include units. Show or explain your work.
b) Determine the area of the pool in terms of x. Write your answers as a trinomial and include
units. Show or explain your work.

Answers

Answer:

ghcfgnxfgxgfmvjbnjghjbnmxfhcgxfgcxgchmvjm

Step-by-step explanation:

good day

Find the length of y

Answers

Answer:

25 cm

Step-by-step explanation:

Find the surface area of the
triangular prism.
10 ft.
3 ft.
3 ft

Answers

Given:

The figure of a triangular prism.

To find:

The surface area of the triangular prism.

Solution:

We know that, a triangular prism contains 2 congruent triangular surface and 3 rectangular surface.

Triangles have base 3 ft and height 2 ft.

Area of a triangle is

[tex]Area=\dfrac{1}{2}\times base\times height[/tex]

[tex]A_1=\dfrac{1}{2}\times (3)\times (2)[/tex]

[tex]A_1=3[/tex]

Area of congruent triangles are congruent. So,

[tex]A_1=A_2=3\text{ sq. units}[/tex]

Now the three rectangular surface have dimensions 10 by 3, 10 by 3 and 10 by 3 because the triangles are equilateral and the length of the prism is 10 ft.

Area of a rectangle is

[tex]Area=Length\times width[/tex]

[tex]A_3=10\times 3[/tex]

[tex]A_3=30[/tex]

Dimensions of all three rectangles are same, therefore there areas are equal.

[tex]A_3=A_4=A_5=30[/tex]

Now, the total surface area of the prism is

[tex]A=A_1+A_2+A_3+A_4+A_5[/tex]

[tex]A=3+3+30+30+30[/tex]

[tex]A=96[/tex]

Therefore, the total surface area of the prism is 96 sq. ft.

A gymnast scores a total of 125 points in the first 4 meets of the season. At this rate, how many points will she score by the end of 14 meets

Answers

Answer:

i dont know but will u date me

Step-by-step explanation:

i’m so confused by this does anyone have this figured out

Answers

Answer:

you have to find the angels

Step-by-step explanation:

PLZ HELP ME & ANSWER CORRECTLY!!!!! NEED ANSWER ASAP!!!!!
Mica and Joy are standing at corner A of the rectangular field shown below.
Mica walks diagonally across the field, from A to corner C. Joy walks from corner A to corner B, and then to corner C. To the nearest hundredth of a mile, how much farther did Joy walk the Mica?

Answers

Answer:

0.54 miles more

Step-by-step explanation:

1. Find the Diagonal. d=w2+l2=1.252+0.752≈1.45774

2. 3/4+1 and 1/4=2 miles

3. 2 miles-1.46 estimate.

4. Solution...0.54

I need some help please

Answers

Answer:

10x - 5

Step-by-step explanation:

Perimeter is found by adding up all the side lengths.

(2x-4) + (5x+6) + (3x-7) = 10x - 5

Perry's bikes rent bikes for $18 plus $4 per hour. Lea paid $42 to rent a bike for how many hours did she rent the bike?

Answers

Answer:

10.5 hours!

Step-by-step explanation:

she rented the bike for 6 hours

Please help:
Find the class width of this graph

Answers

Answer:

The biggest one is 32 to 38

Step-by-step explanation:

hope it helps

What is the volume of this?

Answers

Answer:

270 m³

Step-by-step explanation:

[tex]A_{triandle}[/tex] = [tex]\frac{5*12}{2}[/tex] = 30 m²

[tex]V_{triangular prism}[/tex] = 30 × 9 = 270 m³

What multiplication fact could help me find out 24 ÷ 8 ?

Answers

Answer:

Step-by-step explanation:

That would be 8 x 3. It would help because 24/8 = 3.

If we divide 24 by 8 it gives us the result of 3.

So a multiplication fact is 8x3 = 24.
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