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Brrunno [24]
2 years ago
10

The ratio of hydrogen to oxygen in a plant sample is 18:12. The sample has 42 units of oxygen.

Mathematics
1 answer:
larisa86 [58]2 years ago
3 0

Answer:63

Step-by-step explanation: H:0=18:12=1.5:1

1.5:1=63:42

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Roses normally cost $19.00 a dozen, but for Valentine's Day the price goes up to $35.00. What is the difference in price, includ
JulijaS [17]

Answer:

$17.12

Step-by-step explanation:

First let's find the normal cost with tax

7/100*19=133/100=$1.33

$19+$1.33=$20.33

Now we find the cost with tax for the Valentine's Day price

7/100*35=$2.45

$35+$2.45=$37.45

Now we subtract the normal cost from the Valentine's Day price

$37.45-$20.33=$17.12

4 0
3 years ago
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Answer:

4 hr and 30 minutes?

Step-by-step explanation:

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4 0
3 years ago
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The total area of Fred's yard is 60 square feet. The length is 6 feet. What is the width?
inysia [295]

Answer:

Step-by-step explanation:

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7 0
3 years ago
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Help meeeeeee pleaseeeee
Bingel [31]

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a

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8 0
3 years ago
How to get the right answer
marusya05 [52]

Answer:

15 cm

Step-by-step explanation:

Write out the formula:                                     a^2 + b^2 = c^2

Plug in the numbers that you were given:    a^2 + 6^2 = 16^2

Solve for the numbers that you were given: a^2 + 36 = 256

Subtract:                                                                  - 36 = - 36

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Then, you find your answer:                            a^2 = 220

The square root of 220 is 14.832396974191326. But you are going to round it and you get 15. So, the answer is 15 cm.

Hope this helps

-Amelia

7 0
4 years ago
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