3 years ago

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Mathematics

1 answer:

maw [93]3 years ago

8 0

9514 1404 393

Answer:

$3000 at 8%
$4000 at 6%

Step-by-step explanation:

Let x represent the amount invested at 8%. Then the total interest earned is ...

0.06(7000 -x) +0.08x = 480

420 +0.02x = 480 . . . . . . . . . eliminate parentheses

0.02x = 60 . . . . . . . . . . subtract 420

x = 60/0.02 = 3000 . . . . . divide by the coefficient of x

$3000 was invested at 8%; $4000 was invested at 6%.

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Ackson relies on his customers to tell their friends about his business. His business grows as each customer continues to tell o

I am Lyosha [343]

Answer:

Step-by-step explanation:

Hello!

You have da data for the variables:

X: Number of the day after the opening of Jackson's business.

Y: Number of personal recommendations given by customers of Jackson's business.

Since Jackson's business relies on his customers for advertisement, it is to be expected that the more it is recommended, the more will the business grow.

If this is so then as time passes by, the number of customers and recommendations should increase.

I've made a scatterplot between the two variables, see attachment.

As shown in the scatterplot it seems to be a positive association between these two variables, meaning, when the days pass by, the number of personal recommendations increases.

I hope this helps!