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natka813 [3]
4 years ago
7

Can anybody please help me? Thank you so much!!

Mathematics
1 answer:
shutvik [7]4 years ago
8 0
First you plug in the known variables. So 192 for x and 3 for t. Lastly you get y = 192(3)
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Chalk contains 10% calcium 3% carbon and 12% oxygen find the amount in grams of each of these compounds in 1 kg of chalk
LUCKY_DIMON [66]

Answer:

100 gm calcium, 30gm carbon and 120gm oxygen

Step-by-step explanation:

10% of a kg is 100gm of calcium, 3% of 1 kg is 30gm of carbon and 12% of a kg is 120gm of oxygen

6 0
3 years ago
if someone wants to buy something that costs $750.000 and it’s 35% off, how much does it costs after the discount?
Serggg [28]

Answer:487.5

Step-by-step explanation:

if it is a 35% discount it means you are trying to find 65% of the number because 65+35=100%

to find 65%, you find 5% first, then multiply by 13 to get 65%.

to find 5%, you divide by 20.

750/20=37.5.

37.5*13=487.5

7 0
2 years ago
16x2 = 49 what is x?
pantera1 [17]
You start off, 
16 x 2 = 32
You're looking for x so,
49 - 32 = 17
Hope this helps :)!
Brainliest please 
5 0
3 years ago
the number of songs purchased from an online music store on the first day the store open was 300,000. The number of songs purcha
Arisa [49]
To find this you simply have to look at the formula given. n stands for the number of days. 300,000 is the original. So the only number left is 1.008, but you have to make this a percent by moving the decimal to the right 2 places. 
Final answer is 100.8%
4 0
4 years ago
Multiply.<br><br> 1/4 x 32 =
Solnce55 [7]
Simply change 1/4 to a decimal 
1/4 = 0.25 
now we can multiply 0.25 and 32
lets do the math:)
0.25 x 32 = 8
your answer = 8 

When in doubt, eat a pineapple :)




6 0
3 years ago
Read 2 more answers
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