Question

Kevin plans to put concrete on a rectangular portion of his driveway. The portion is 10 feet long and 3 inches high. The price of concrete is $98 per cubic yard. The total cost of the concrete Kevin needs is $72.59. Which of the following is closest to the width of the portion of the driveway on which Kevin plans to put concrete?

[1 foot = 12 inches; 1 yard = 3 feet]

3 feet
6 feet
8 feet
10 feet

Answer 1

@Melissa_Something

Answer 2

I'm trippin, I'm tryna set up a proportion but this making me mad hahaha

Answer 3

lol is there anyway you can help me with this one

Answer 4

@ganeshie8

Answer 5

@surry99 are you going to help me?

Answer 6

Convert 10 feet to yards = x
Convert 3 inches to yards = y
width in yard = z

So
xyz($98/yd^3) = $72.59

Solve for z in yards then convert it to feet

Answer 7

8 feet

Answer 8

you there

Answer 9

yep

Answer 10

that is the correct answer

Answer 11

i havent done the math

Answer 12

oh

Answer 13

plug the numbers in and check to see if it works

Answer 14

Does it work when you check?

Answer 15

idk

Answer 16

hang on...

Answer 17

please hurry can you also help me with another one after this

Answer 18

I got 8 feet

Answer 19

can you help me with another one

Answer 20

I can try

Answer 21

ok

Answer 22

Do you take FLVS cause I remember a question like this on an exam

Answer 23

The length of the base of a triangle is 5.3 cm and its height is 6.7 cm. If the area of the triangle is half of the product of its base length and height, the area of the triangle is __________ cm2.

(Round your answer to the appropriate significant digits)

Numerical Answers Expected!

Answer for Blank 1:

Answer 24

yes I do

Answer 25

It is for a practice test

Answer 26

.5 (5.3 cm) x 6.7 cm =

Answer 27

1/2 (5.3 * 6.7)

Answer 28

35.51 is the answer

Answer 29

that gives you 1/2 * 35.51

Answer 30

no now you must divide by 1/2 again

Answer 31

17.755

Answer 32

Round it and your done :)

Answer 33

but i have to round to significant figures which 17.8 and i got that wrong on the pretest

Answer 34

Does it say where to round it?

Answer 35

no

Answer 36

it says: round your answer to the appropriate significant figures

Answer 37

are you still here?

Answer 38

I would just type 31.5 then

Answer 39

why

Answer 40

that might be the wrong answer

Answer 41

Honestly I truly believe it is 17.8, but when it says "appropriate figures" it might mean

17.755 like 17.76

Answer 42

that might be it

Answer 43

i will put it in may I have help with a few more

Answer 44

@ccswims

Answer 45

Sure

Answer 46

An equation is shown below:

-2(4x - 1) - 7 = 5

Which statement shows a correct next step in solving the equation?

The equation can become -2(4x - 1) = -2 by applying the distributive property.
The equation can become -2(4x - 1) = 12 by applying the addition property of equality.
The equation can become -2(4x - 1) = 12 by applying the commutative property of addition
The equation can become -2(4x - 1) = -2 by applying the subtraction property of equality.

Answer 47

I am timed on this test for some reason may we go a little quicker

Answer 48

B

Answer 49

explain please

Answer 50

@ccswims

Answer 51

You cancel out -7 to 7 and add

12 + 7

Answer 52

this is the addition property of equality

Answer 53

ok

Answer 54

may you help me with two more

Answer 55

yea

Answer 56

A bulldozer is rented at $800 per day plus a charge per hour of use. The bulldozer was used for 5 hours on a day and the total charge was $3000. Which equation can be used to find the charge x, in dollars, per hour of use?

Answer 57

800 + 5x = 3000
800x + 5 = 3000
800x + 5x = 3000
800 + 5 = 3000x

Answer 58

A because x is the rent per hour

Answer 59

A car repair shop charged $80 per hour for labor and $210 for the parts of a car. If the total cost of repair for the car was $490, how many hours did it take to repair the car?

0.59
2.71
3.50
8.75

Answer 60

C

Answer 61

Ok

Answer 62

i am submitting it lets hope I get a good grade

Answer 63

@ccswims I got one wrong

Answer 64

Which one?

Answer 65

it was the one about rounding the one that we could not understand

Answer 66

I'm sorry, honestly I believe it was 17.8 because they said round

Answer 67

that is okay though I am still happy I got a 95

Answer 68

But you said that was wrong

Answer 69

i know

Answer 70

Good :) I'm really sorry about that one

Answer 71

I am going to email my teacher and ask him the correct answer

Answer 72

Yea, cause that one was confusing because it also didn't tell you to round to the nearest tenth or hundredth

Answer 73

exactly, but thanks for all the help you are awesome i am going to fan you