MATHEMATICS
MIDDLE SCHOOL

Answer: The greatest prime factor of 78 is 39 because it is prime and the highest number that can go into 78.

MIDDLE SCHOOL

A light bulb consumes 600 watt-hours per day. How long does it take to consume 2250 watt-hours?

If a light bulb consumes 600 per day, then you need to divide 2250 by 600. So it would be around 3.75 days

MIDDLE SCHOOL

How do you solve 23.61 divided by 3

Answer:

7.87

Step-by-step explanation

Divide

The answer is 7.87 just divide 23.61 and 3

MIDDLE SCHOOL

Fouls friends at a party popped3/4 of bag of popcorn.They ate half of what was popped.What fraction of the popcorn in the bag did they eat?

3/8 because 3/4 × 1/2 is 3/8. -JZ

MIDDLE SCHOOL

The formula V=lwh is used to calculate the volume of a rectangular prism. What is the equation solved for h? A)Vlw=h

B)lw/v=h

C)V/lw=h

D)Vh=lw

10 points!!! Please help!!

(h is multiplied with l and w. The opposite of multiplication is division. divide lw from each side)

The answer is C) V/lw = h

The answer is C) V/lw = h

You have said that V = l w h

Divide each side by ' l w ' : V / l w = h

HIGH SCHOOL

The diameter of a bike is 90cm. How far would it travel after 5 revolutions?

We know that

[length of a circumference]=2*pi*r

diameter=90 cm-------------> r=d/2--------> r=45 cm

[length of a circumference]=2*pi*45----------> 90*pi cm

with 1 revolution will go the length of the wheel

if 1 revolution is-------------------> 90*pi cm

5 revolution is--------------------> X

X=5*90*pi----------> 1413 cm

the answer is 1413 cm

[length of a circumference]=2*pi*r

diameter=90 cm-------------> r=d/2--------> r=45 cm

[length of a circumference]=2*pi*45----------> 90*pi cm

with 1 revolution will go the length of the wheel

if 1 revolution is-------------------> 90*pi cm

5 revolution is--------------------> X

X=5*90*pi----------> 1413 cm

the answer is 1413 cm

MIDDLE SCHOOL

Draw Conclusions The decimal 0.3 represents 1. What type of number best describes 0.9, which is 3 0.3? Explain.

If 0.3 = 1 then 0.9 = 3 because 0.3+0.3+0.3=the 3.

MIDDLE SCHOOL

A scale drawing of a garden has a flower bed that is 6.5 inches in length. The scale that was used for the drawing is 1 inch = 2 feet

Answer:

13 ft

Step-by-step explanation:

We can use proportions to solve. Put the drawing size on top and the real life size on bottom.

1 inch 6.5 inches

----------- = --------------

2 ft x ft

Using cross products

1 * x = 2 * 6.5

x = 13 ft

MIDDLE SCHOOL

Find the width in inches of 50-millimeter film. Round to the nearest cent.

Answer:

1.96 inches (to the nearest hundredth)

Step-by-step explanation:

Convert 50 mm to inches:

50 mm 1 inch 1 cm

---------- * --------------- * --------------- = 1.96 inches

1 2.54 cm 10 mm

MIDDLE SCHOOL

How many times can 6 go into 5920

986 with a remainder of 7

That answer would be: 987.6666..... (6 repeating)