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alexira [117]
2 years ago
6

Does this table represent a proportional relationship? If so, what is the constant of proportionality? Explain

Mathematics
1 answer:
klio [65]2 years ago
6 0

Answer:

no it doesn't because if the number in the first column increase then the number in the second column shouldn't be decreasing also the constant between 85 and 5 was 17 but the constant between 10 and 79 wasn't the same

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Geometry help! Picture included :)
AURORKA [14]
Set up a proprtion and cross multiply.

18/7.5=22/4x+1

7.5×22=18 (4x+1)
165=72x+18
147=72x
x=2.04
8 0
3 years ago
A hexagonal pyramid that has a slant height of 39 cm and its hexagonal base has a radius of 10√3 cm.
VMariaS [17]

Answer: 225

Step-by-step explanation:

Volume of the pyramid is calculated as 1/3 bh, where b is base and h is height

Given height as 39cm and a base of 10√3cm = 10 x √3, where √3= 1.73; base = 10 x 1.73 = 17.3

Slot the values into the formula:

Volume = 1/3 × 17.3 x 39

= 1/3 × 674.7 = 674.7/3

Volume = 224.9 approximately 225.

I hope this helps.

3 0
3 years ago
Martha earned $180 during the summer doing chores. She bought 3 books worth $14 each using her chore money. How much money was l
Viktor [21]

Answer:

$138

Step-by-step explanation:

We can first turn the words into a mathematical equation by substituting words with the information we have:

Total earning - ( Price of three books)

$180 - (Price of one book x 3)

$180 - ($14 x 3)

Finally, after we have created the mathematical equation, we solve it!

$180 - ($14 x 3)

$180 - $42

$138

6 0
3 years ago
Daria has 18 coins that are all nickels and quarters. the number of nickels is 3 more than twice the number of quarters. if she
sergij07 [2.7K]
Daria has 12 to 15 nickels because 3x3=9 but u want to double the amount which would be 12 to 15
3 0
3 years ago
At an assembly 7 out of the first 10 students who entered the gym were carrying a backpack. Based on this information, if 700 st
hram777 [196]
7 out of 10 were carrying a backpack...and 3 out of 10  were not
that means 7/10 of the total students had backpacks and 3/10 of the total students did not

7/10 * 700 = 4900/10 = 490 had backpacks <==
3/10 * 700 = 2100/10 = 210 did not
4 0
3 years ago
Read 2 more answers
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