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Umnica [9.8K]
3 years ago
12

A new pencil weighs 25 grams. After the pencil has been used for a while, it weighs 2 decagrams. How many grams of the pencil ha

ve been used up?
Mathematics
1 answer:
ivann1987 [24]3 years ago
8 0
Well 1 decagram is 10 grams and 10×2 is 20 so 20 from 25 is 5 so 5 grams was used
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Plastic Knives are sold in packs of 18 for 45p. Plastic Forks are sold in packs of 15 for 41p. Jace wants to buy the same number
Flauer [41]

Answer:

430p

Step-by-step explanation:

For this, we'll find the least common multiple for 15 and 18.

=> The least common multiple for 15 and 18 is 90

<u><em>Plastic Knives:</em></u>

Jace will buy 90 knives.  

=> Packets = 90/18 = 5 Packets

Money for 5 Packets = 5 * 45

=> 225p

<u><em>Plastic Forks:</em></u>

Jace will buy 90 forks also.

=> Packets = 90/15 = 6 Packets

Money fro 6 packets = 6 * 41

=> 205p

<u><em>Least Amount of Money Jace will spend</em></u> = 225p+205p

=> 430p

6 0
3 years ago
If the Revenue for the week is $2000, and labor cost consists of two workers earning $8 per hour who work 40 hours each, what is
slega [8]
So,

All you have to do is find the total labor cost and put it over the revenue.

We have two workers each earning $8/hr. (lousy), and they work 40 hrs./week.

2 * $8 = $16/hr.

$16/hr. * 40 hrs. = $640

\frac{640}{2000}

Cross out zeros.
\frac{64}{200}

Simplify.
\frac{2^6}{2^35^2}
\frac{2^3}{5^2}
\frac{8}{25}

Convert the denominator to 100.
\frac{8}{25} *  \frac{4}{4} =  \frac{32}{100}
\frac{32}{100}
=
32%

The labor cost is 32% of the revenue.
7 0
2 years ago
Penny and Sheldon are assembling hair clips. Penny can assemble a hair clip in 6 minutes and Sheldon can assemble a hair clip in
creativ13 [48]
The answer would be 18 minutes
8 0
3 years ago
What types of erosion creates caves?
pishuonlain [190]
Caves are formed by the dissolution of limestone. Rainwater picks up carbon dioxide from the air and as it percolates through the soil, which turns into a weak acid. This slowly dissolves out the limestone along the joints, bedding planes and fractures, some of which become enlarged enough to form caves.
4 0
3 years ago
Which of the following shows the function f (x) being translated 4 units up?
Shtirlitz [24]

Answer:

where is the following

Step-by-step explanation:

b i can teve n tse the following answers

3 0
3 years ago
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