3 years ago

in a fireplace, about 3/4 of an 18-inch log will burn in 1/3 of an hour. How many hours will it take to burn 2 1/2 logs?

1 answer:

3 0

3/4 =1/3 hour
how long to burn 2 and 1/2

3/4=1/3hour
1/4=1/9 hour
4/4=1=4/9hour
1/2=2/4
1/2=2/9hour

2 and 1/2=1+1+1/2=4/9+4/9+2/9=10/9=9/9+1/9=1+1/9=1 and 1/9

answer is C. 1 and 1/9 hour

You might be interested in

Please help fast! (see picture)

valentina_108 [34]

$m = \frac{y2 - y1}{x2 - x1} \\ m(x2 - x1) = y2 - y1 \\ m(x2 - x1) + y1 = y2$

3 0

2 years ago

I need help on this question

schepotkina [342]

Answer:

0 4 9 1

_____________

1 9 9 3 2 9

− 0

9 3

− 7 6

1 7 2

− 1 7 1

1 9

− 1 9

Step-by-step explanation:

Sorry of this isn't clear

6 0

3 years ago

Factored form of 16m^4-121

AnnZ [28]

$16m^4-121 =(4m^2-11)(4m^2+11)$

8 0

2 years ago

The table shows the masses of four objects. A 2-column table with 4 rows. The first column labeled object has entries book, rock

Ede4ka [16]

Answer:

ROCK 2.3 kg

is about 22.5N

Step-by-step explanation:

To convert kg>>>>N

You multiply by 9.8 (this is good for estimating, but use more decimal places like, 9.80665 for more exact calculations).

You can divide N÷9.8 to find kg

see image

6 0

1 year ago

Help me if you know..

jenyasd209 [6]

Answer:

$3 \sqrt{3}$

Step-by-step explanation:

See the attachment for better understanding..

8 0

2 years ago