3 years ago

I need help on #3 I don't understand systems of linear inequalities since I wasn't there when my teacher explained it

1 answer:

3 0

Since y is anything greater than 2, you would draw a straight line across the point (from left to right) and if you had to shade you would shade above it (:

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How do i factorise 8x squared plus 4xy ???

andreev551 [17]

8x^2 + 4xy = 4x (2x + y)

hope that helps

6 0

3 years ago

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Find the interest rate for $9000 deposit accumulating to $9889, compounded annually for 5 years.

stellarik [79]

sorry I didn't answer the question

7 0

2 years ago

A shop sells packs of black pens, packs of red pens and packs of green pens.

olchik [2.2K]

Answer:

85 pens

Step-by-step explanation:

The computation of the number of green pens sold is shown below;

As the number of black pens, red pens, and green pans is 3:5:6

And, the ratio of sold of black pens, red pens, and green pans is 7:3:4

So, the ratio of pens in a number of pens is

= 3 × 7 : 5 × 3 : 4 × 6

= 21: 15 : 24

= 7: 5 : 8

And, the total of 212 pens are sold

So, the number of green pens sold is

= 8 × 212 ÷ (7 + 5 + 8)

= 85 pens

4 0

3 years ago

James invested $4,000 at 5% interest per year; how long will it take him to earn $200 in simple interest?

tester [92]

Answer:

It takes 1 year.

Step-by-step explanation:

You have to apply simple interest formula, I = (P×R×T)/100 where I represent interest amount, P is principle, R is interest rate and T is number of years :

$I = \frac{PRT}{100}$