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3 years ago

Postal carrier can deliver 130 houses and 2.5 hour. At this rate how many hours will it take to deliver 312 at houses

Mathematics

1 answer:

Vlada [557]3 years ago

3 0

First, you much find out how many houses are deliverd in 1 hour.

130/2.5=52

So 52 houses are delivered in 1 hour. Now, divide that by 312.

312/52=6

It would take 6 hours to deliver 312 houses.

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The cuboid has volume 288cm^3 (a) the cuboid has a length 12 cm and a width 5cm Calculate the height of the cuboid (b) 1cm^3 of

klemol [59]

Answer:

height= 4.8cm

Step-by-step explanation:

volume= length×width× height given the volume and length and width, 288=12×5×h

288=60h

divide both sides by 60

h=4.8cm

7 0

3 years ago

Read 2 more answers

4x + 5y = 22 7x - 3y = -32

lana66690 [7]

Answer:

x = -2

y = 6

Step-by-step explanation:

i multiplied the 1st equation by 3 and the 2nd by 5 to get the y-terms to zero out

12x + 15y = 66

+ 35x - 15y = -160

47x = -94

x = -94/47

x = -2

substitute -2 for 'x' to solve for 'y':

4(-2) + 5y = 22

-8 + 5y = 22

5y = 30

y = 6

3 0

3 years ago

4/7 is the result when 1/2 and x are added.

kipiarov [429]

By solving the equation
1/2 +x =4/7
x = 4/7 -1/2
x= 1/14

5 0

3 years ago

Last year there were 120 students in choir. This year, 30% more students took choir. How many students are taking choir this yea

soldi70 [24.7K]

Answer:

156 students

Step-by-step explanation:

To find how many students are in choir this year, multiply 120 by 1.3

120(1.3)

= 156

So, this year, 156 students are taking choir

7 0

3 years ago

Read 2 more answers

What are the values of x in the equation 4x^2+4x-3=0

ludmilkaskok [199]

I have an answer and an explanation!

ANSWER: $X=\frac{1}{2} (or) x= \frac{-3}{2}$

Explanation:

{Let's solve your equation step-by-step.}
 $4 x^{2} +4x-3=0$

{Step 1: Factor left side of equation.}
 $(2x-1)(2x+3)=0$

{Step 2: Set factors equal to 0.}
 $2x-1=0 (or) 2x+3=0$

3 0

3 years ago