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1 year ago

Show work, for extra Brainly, elementary work, multiplying unit fractions by whole numbers

Mathematics

1 answer:

Wewaii [24]1 year ago

5 0

Answer:

2 1/4

Step-by-step explanation:

Number 1 is incorrect because 1/4 x 9 is 2 1/4 not 1 1/4.

To multiply fractions, multiply directly across. So multiply 1/4 x 9/1 to get 9/4 which converted into a mixed number is 2 1/4.

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David wants to fill his backyard swimming pool. His garden hose delivers 40 gallons in 5 minutes. How many gallons of water will

svetlana [45]

Answer:

Part a) $160\ gallons$

Part b) $480\ gallons$

Step-by-step explanation:

Part a) How many gallons of water will be in the pool after 20 minutes?

we know that

Using proportion

$\frac{40}{5}\frac{gallons}{minutes}=\frac{x}{20}\frac{gallons}{minutes} \\ \\x=40*20/5\\ \\x=160\ gallons$

Part b) How many gallons of water will be in the pool after 1 hour

we know that

1 hour = 60 minutes

Using proportion

$\frac{40}{5}\frac{gallons}{minutes}=\frac{x}{60}\frac{gallons}{minutes} \\ \\x=40*60/5\\ \\x=480\ gallons$

5 0

2 years ago

What is the sum of -7/10+4/10

tia_tia [17]

Answer:

-3/10

Step-by-step explanation:

8 0

2 years ago

Solve -3.5 = for x using the multiplication property of equality. The operation in the problem is eration is Addition Subtractio

Gemiola [76]

The answer is the Division on the top The multiplication then -14

Step-by-step explanation: I hope this will help you

6 0

2 years ago

I really don't understand this I need help

Salsk061 [2.6K]

In looking at it I would guess it is asking which of the points is on the line? To answer that you would have to take each point an plug it into the equation and see if it is true.

3x - 7 = y

A(9,20)
3(9) - 7 = 20
27 - 7 = 20
20 = 20 True - this point is on the line

B(5,0)
3(5) - 7 = 0
15 - 7 = 0
8 = 0 False - this point is not on the line

C(3,2)
3(3) - 7 = 2
9 - 7 = 2
2 = 2 True - this point is on the line

I hope this helps

7 0

2 years ago

What is 2 + 5 - 2 x 9 = ? The person who gets it right, I will make you brainliest.

Minchanka [31]

PEMDAS
Multiplication: 2 + 5 - 18=
Addition: 7-18=
Subtraction: -11
Answer=-11

5 0

2 years ago

Read 2 more answers