Question

Jesse worked 3 1/2 hours to build a brick wall. He built 2 2/3 feet of the wall each hour. How long is the wall he built?

A. 9 1/3 feet
B. 9 feet
C. 7 feet
D. 6 1/6 feet

Answer 1

@jim_thompson5910

Answer 2

you would multiply the number hours (3 1/2) by the rate (2 2/3)

Answer 3

what do you get when you do this?

Answer 4

keep in mind that

3 1/2 = 3 + 1/2

3 1/2 = 6/2 + 1/2

3 1/2 = 7/2

Answer 5

and

2 2/3 = 2+2/3

2 2/3 = 6/3+2/3

2 2/3 = 8/3

Answer 6

so

(3 1/2) x (2 2/3)

is the same as

(7/2) x (8/3)

Answer 7

9 1/3

Answer 8

good

Answer 9

yaay im done with math :) r you good at science? 6th grade science? lol sorry for bothering you :p

Answer 10

not really, I'm ok at it so it's not as guaranteed with math

Answer 11

can you try ? :)

Answer 12

sure let's see what you got

Answer 13

Directions: Read each step. Then put the steps in order from first to last. Write 1 for the first step, 2 for the second step, and so on.

_____1. Fossil Fuels are burned. The thermal energy of the burning fuel turns water into steam.
_____2. Over millions of years, the chemical energy in ancient organisms is transformed into the chemical energy of fossil fuels.
_____3. The turbine turns a generator. The kinetic energy of the generator is converted to electrical energy.
_____4. Organisms transform the radiant energy in sunlight into chemical energy.
_____5. The kinetic energy of steam is transferred to a turbine

Answer 14

ok one sec

Answer 15

thanks :)

Answer 16

ok this sounds like a time line

Answer 17

from where energy originally comes from to where it ends up

Answer 18

so you would start with the sun

Answer 19

that energy gets into plants

Answer 20

so that's why step 4 is the first step

Answer 21

ok :)

Answer 22

i mean, this is the first step

_____4. Organisms transform the radiant energy in sunlight into chemical energy.

Answer 23

yes

Answer 24

energy comes from the sun ---> goes to plants

then the plants die and turn into fossils

Answer 25

even though when you think of fossils as dinosaurs, the majority of fossils are plants and tiny creatures (since there were a lot more plants than dinosaurs)

Answer 26

so that's why

_____2. Over millions of years, the chemical energy in ancient organisms is transformed into the chemical energy of fossil fuels.

is next

Answer 27

ok :)

Answer 28

number 1 would be step 3?

Answer 29

yep

Answer 30

_____1. Fossil Fuels are burned. The thermal energy of the burning fuel turns water into steam.

is next

Answer 31

then what?

Answer 32

number 3 would be step 4?

Answer 33

NOO

Answer 34

number 5 would be step 4

Answer 35

yep, 5, then 3

Answer 36

low charge on my computer :S

Answer 37

speaking of electrical energy lol

Answer 38

lol!! ok thank you soo much

Answer 39

np

Answer 40

byee :) btw my sister @gabylovesyou recommended me with u

Answer 41

ah that name sounds familiar lol

Answer 42

have a good night

Answer 43

lol!!! :) nighty night night

Answer 44

good night