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Stels [109]
3 years ago
15

Write 12 3/20 as a decimal number

Mathematics
2 answers:
never [62]3 years ago
5 0

Answer:

12.15

Step-by-step explanation:

3/20 = 15/100 = 0.15

Explanation:

Decimals are way of writing fractions which have denominators that are powers of 10

0.3 = 3/10

  0.38 = 38/100

  0.384 = 384/1000

etc

Find an equivalent fraction for 3/20

3/20× 5/5 = 15/ 100

This can now be written as

0.15

and the remaining whole twelve you are to add

so it would be 12.15

shepuryov [24]3 years ago
3 0

Answer:

12.15

Step-by-step explanation:

It is 12.15 because you  have 12, right? 3 divided by 20, gives you 15.

Another way you can use to find the answer is taking 3/20 from 12 3/20, and then 3/20 equals 15/100. As a decimal it will be 12.15

Hope this helps!

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Answer:

5

Step-by-step explanation:

it is five

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3 years ago
I really need help on this question.!
IrinaVladis [17]

Answer:

b = 135 \\ a + c = 45(ie \: 180 - 135)  \\ a =  \frac{45}{2}  \\ a = 22.5

4 0
2 years ago
Hillary buys 3 pounds of Gala apples and some Granny Smith apples. Both kinds of apples cost $4.50 per pound. The total cost is
Elodia [21]

Answer:

24.75 = 3*4.50 + x*4.50

x= 2.5 pounds of Granny Smith apples

Step-by-step explanation:

Gala apples = 3 lbs

Granny apples = x lbs

They cost 4.50 a pound

Total cost = 24.75

Total cost = gala apples * cost per pound + granny apples * cost per pound

Substitute in what we know

24.75 = 3*4.50 + x*4.50

24.75 = 13.50 + 4.5x

Subtract 13.50 from each side

24.75-13.50 = 13.50-13.50 + 4.5x

11.25 = 4.5x

Divide by 4.50 on each side

11.25/4.5 = 4.5x/4.5

2.5 =x

6 0
3 years ago
Read 2 more answers
Johnny drove 300 miles to meet his mother on Tuesday. On Thursday, he drove 120 miles to meet friends at an amusement park. On S
skad [1K]

Answer: 60 mph

Step-by-step explanation:

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3 0
3 years ago
The price of a ceramic bead necklace (Y) is directly proportional to the number of beads (x) on the necklace. Using the graph, w
Annette [7]

Answer: C) (1,0.80) represents the unit rate. E) (25,20) represents the price of a necklace with 25 beads

Step-by-step explanation:

(1, 0.80) represents the unit rate.

(25, 20) represents the price of a necklace with 25 beads.

\frac{y}{x} = unit rate → \frac{4}{5} = 0.80; \frac{12}{15} = 0.80; \frac{16}{20} = 0.80

Point (1, r) → (1, 0.80) represents the unit rate.

25(0.80) = 20; thus, (25, 20) represents the price of 25 beads.

Hope this helps

8 0
3 years ago
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