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3 years ago

Can someone help me understand how you add fractions? Like step by step like for an a example 3 3/5 + 2 1/4=?

Mathematics

1 answer:

Vikentia [17]3 years ago

6 0

Answer:

Step-by-step explanation: Alright adding fractions here we go.

3 3/5 + 2 1/4

First add up the whole numbers. 3+2=5

Then adding the mix numbers, what you need to do is find a common demoninator. What do 5 and 4 both go into? Well 20, so we multiply each demoinator to get 20.

3/5+1/4

12/20 + 5/20

17/20

Answer is 5 17/20.

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When x=26 what does y=

Amiraneli [1.4K]

Answer:

this is incomplete idk what I'm supposed to do with this

6 0

3 years ago

A cistern is leaking 0.25 liters of water per minute. Approximately how many gallons of water is the cistern losing per hour? (P

nikklg [1K]

The cistern is losing approximately 3.963 gallons of water per hour.

Explanation

A cistern is leaking 0.25 liters of water per minute.

We know, 1 gallon = 3.785 liters

So, 0.25 liters = $\frac{0.25}{3.785}=0.06605...$ gallons

That means, the cistern is losing 0.06605....gallons of water per minute.

So, the amount of water losing in 1 hour or 60 minutes $=(0.06605...*60) gallons= 3.963 gallons$ (Approximately)

7 0

4 years ago

Read 2 more answers

3x-4y= 3x−4y= \,\,9 9 -5x+4y= −5x+4y= \,\,-23 −23

Marta_Voda [28]

Answer: (7,3)

Step-by-step explanation:

[Please check]: I decoded the equations as follows:

3x-4y=9 and −5x+4y=-23

We can solve this by either of two methods: Algebra and graphing.

Algebra:

Add the two equations:

3x-4y=9

−5x+4y=-23

-2x = -14

x = 7

Use x=7 to solve for y:

3x-4y=9

3(7)-4y=9

21 -4y = 9

-4y = -12

y = 3

----

The solution is (7,3)

======

Graphing:

See the attached graph. The lines intersect at (7,3)

7 0

3 years ago

HELP ME PLEASEEEEEEEEEEEE

murzikaleks [220]

Answer:

Step-by-step explanation:

if you count the numbers, the longer side is 7 and the other is 5

7+7 and then add 5+5

14+10

5 0

3 years ago

Find ∫x√(1-x)dx please someone help me

spin [16.1K]

Answer:

⅖ (1 − x)^(5/2) − ⅔ (1 − x)^(3/2) + C

Step-by-step explanation:

∫ x√(1 − x) dx

If u = 1 − x, then x = 1 − u, and dx = -du.

∫ (1 − u) √u (-du)

∫ (u − 1) √u du

∫ (u^(3/2) − u^(1/2)) du

⅖ u^(5/2) − ⅔ u^(3/2) + C

⅖ (1 − x)^(5/2) − ⅔ (1 − x)^(3/2) + C

4 0

3 years ago