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3 years ago

How do i subtract fraction?

2 answers:

8 0

There are 3 simple steps to subtract fractions :
<span>1.Make sure the bottom numbers (the denominators) are the same.
2.Subtract the top numbers (the numerators).
3.Put the answer over the same denominator.<span>Simplify the fraction (if needed).

Hope this helps :)</span></span>

stellarik [79]3 years ago

5 0

You'll have to find a common denominator first, then you can subtract the numbers on top and the bottom stays the same.

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392 x 22 but in a reciprocal answer I only have 10 minutes!!

Paladinen [302]

your answer is 0.00011596

4 0

3 years ago

a store has 30 boxes of melon each box has 4 bags each bag holde 2 melons what is the total number of melon in the store?

Zarrin [17]

180 melons

4 x 2 x 30

8 0

3 years ago

Read 2 more answers

Which statements about finding the area of the equilateral triangle are true? Check all that apply.

lara31 [8.8K]

Answer:

The correct options are 1, 2 and 4.

Step-by-step explanation:

The given triangle is an equilateral triangle. All the sides of an equilateral triangle are same. All interior angles are equal with measure 60 degree.

The distance from the center of an equilateral triangle to the midpoint of a side is known as apothem. In the given figure letter a represents the apothem.

Point D is the midpoint of BC,

$b=\frac{BC}{2}=\frac{8.7}{2}=4.35$

Use Pythagorean theorem in triangle COD. So, option 1 is correct.

$OC^2=OD^2+DC^2$

$5^2=a^2+(4.35)^2$

$25=a^2+18.9225$

$a=\pm 2.46526$

$a\approx\pm 2.5$

The distance can not be negative, so the length of the apothem is approximately 2.5 cm. Option 4 is correct.

The line OC bisects the angle C.

$tan(30^{\circ})=\frac{a}{b}$

$\frac{1}{\sqrt{3}=\frac{a}{4.35}$

$a\approx\pm 2.5$

Therefore option 2 is correct.

The perimeter of an equality triangle is

$P=3a=3(8.7)=26.1$

Option 3 is incorrect.

$A=\frac{\sqrt{3}}{4}a^2=\frac{\sqrt{3}}{4}(8.7)^2=32.77$

Option 5 is incorrect.

Therefore options 1, 2 and 4 are correct.

3 0

3 years ago

Read 2 more answers

A water trough is 9 m long and has a cross-section in the shape of an isosceles trapezoid that is 20 cm wide at the bottom, 70 c

ella [17]

Answer:

dv = surface area * dh

dv/dt = surface area * dh/dt

width at surface = 40 + (80-40)(30/40)

= 40 + 30 = 70 cm = 0.70 m

surface area = 9 * .7 = 6.3 m^2

.3 m^3/min = 6.3 m^2 * dh/dt

and

dh/dt = .047 meters/min or 4.7 cm/min

Step-by-step explanation:

7 0

3 years ago

Help! Find the domain of the graph

charle [14.2K]

Answer:

[-8,4]

Step-by-step explanation:

you look at the x-axis. The end points of the graph are -8 and 4, thus the domain would be [-8,4] as it is always written in left to right or bottom to top value.

hope it helps.

8 0

3 years ago