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alisha [4.7K]
3 years ago
8

y and x have a proportional relationship, and y = 7 when x = 2. What is the value of x when y = 21? Enter your answer in the box

.
Mathematics
1 answer:
Jlenok [28]3 years ago
5 0
 when y=21 x =6 , hope this helps
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What is the sum of the first five terms of a geometric series with a1=15 and r=1/3
Solnce55 [7]

Answer:

15, 5, 5/3, 5/9, 5/27

Step-by-step explanation:

Recall, that the general form of a geometric series is

a, ar, ar², ar³, .........

where a is the first term and r is the ratio

It is given that the first time is 15, hence a = 15

also given that ratio is 1/3

hence the first 5 terms are:

15, (15)(1/3), (15)(1/3)^2, (15)(1/3)^3, (15)(1/3)^4

simplifying each term gives

15, 5, 5/3, 5/9, 5/27

6 0
2 years ago
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The total weight of 9 bags of potatoes is 36 kilograms each bag weights the same amount what is the weight in grams of each bag
ra1l [238]

Answer:

4000

Step-by-step explanation:

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3 years ago
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Write this mixed number 6 4/7 as an improper faction in simplest form
dangina [55]
It is 46/7     you could multiply 6x7 and then add 4 =   46/7
3 0
3 years ago
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Hey! A step by step explanation on this would be great! Thanks!<br> (25 Points)
kicyunya [14]

Step-by-step explanation:

We find the stationary point of (20 + 2x)(1200 - 60x),

where x is the unit rate of increase/decrease.

d/dx [(20 + 2x)(1200 - 60x)]

= d/dx (-120x² + 1200x + 24000)

= -240x + 1200.

When d/dx [(20 + 2x)(1200 - 60x)] = 0,

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Price per shirt that maximise revenue

= $20 + $2x = $20 + $2(5) = $30.

Maximum revenue

= (20 + 2(5))(1200 - 60(5))

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6 0
2 years ago
Explain why a graphical display might be skewed. How<br> do you ensure data isn't skewed?
Ipatiy [6.2K]

Answer: hey mate i have you answer

Step-by-step explanation: Sample Response: If the data is collected in a biased manner, the graph could be skewed. Also, if the number of observations is too small, the graph can be skewed. To ensure the data is not skewed, collect a large representative unbiased sample

4 0
3 years ago
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