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3 years ago

-2y + x = 8 3y + 2x = 2 solve using substitution please show work

Mathematics

1 answer:

Inessa [10]3 years ago

4 0

Answer:

x=4,y=−2

Step-by-step explanation:

1 Solve for x in -2y+x=8

x=8+2y

2 Substitute x=8+2y into 3y+2x=2

7y+16=2

3 Solve for y in 7y+16=2

y=-2

4 Substitute y=-2 into x=8+2y

x=4

5 Therefore,

x=4

y=−2

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3 years ago

Read 2 more answers

Dad bought $200,000 of term life insurance at the rate of $5.40 per thousand-dollar unit. How much is the annual premium?

irina1246 [14]

Answer:

It is clear that the annual premium = $1080

Explanation:

Given:

As the total term amount for life insurance is given in the question which is $200,000

rate per $1000 unit = $5.40

<em><u>Simple Calculation Procedure to get the annual premium: </u></em>

First step:

Let’s assume $1000 is one unit and the mentioned rate per $1000 unit is $5.40. Now, all you need is to find total number of $1000 units in total term insurance amount ($200,000).

So,

divide $200,000 by $1000 to establish the total number of

1000 units in $200,000 = $200,000/$1000 = 200

Second step:

As 200 is found to be the total number of $1000 units in $200,000.

So, just multiply 200 with $5.40 to ultimately find the annual premium

i.e. $5.40 × 200 = $1080

Hence, it is clear that the annual premium = $1080

Keywords: life insurance, annual premium, premium term rate

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3 years ago