3 years ago

Using the substitution P=1/x and Q=1/y.

1 answer:

5 0

Step-by-step explanation:

$2p + q = 3 \\ p - 5q = 7 \\ \\ multiply \: the \: second \: equation \: by \: 2 \\ 2p - 10q = 14 \\ 2p - 10q - (2p + q) = 14 - 3 \\ 2p - 10q - 2p - q = 11 \\ - 11q = 11 \\ q = - 1 \\ \\ 2p + q = 3 \\ 2p - 1 = 3 \\ 2p = 4 \\ p = 2$

You might be interested in

How many miles is it from Honolulu to pearl harbor

Semmy [17]

Answer:

9.1 miles

Step-by-step explanation:

3 0

3 years ago

There are three risk classes in a pool of insureds under a whole life insurance policy. 34% of the insureds are in Class D, 28%

KATRIN_1 [288]

C is the answer hope this helps

8 0

2 years ago

An art class consists of 8 boys and 10 girls. The teacher

wolverine [178]

Answer: 14/285

Step-by-step explanation:

B = 10

G = 8

T = 18

So its a 8/20 that 1 is a girl but then 2nd its 7/19 and 3rd 6/18 so

8/20 * 7/19 * 6/18 = 14/285

3 0

3 years ago

Help please<br>working too please!!!!.?

Alenkinab [10]

Step-by-step explanation:

(1) 4mn × 6mp × 3mnp

= 4 × 6 × 3 ( mn × mp × mnp)

= 72 × (m³n²p²)

72m³n²p²

sorry, I'm busy, won't be able to complete it

3 0

3 years ago

Tell someone a story about "1 more and then 1 more

gayaneshka [121]

Once upon a time there was a guy named Jeff. he went to a new school where he moved. so he was all by himself with no friends at all.. so then he met this guy named Zac so it was 1+1=2. and they were bff so they lived happily ever after together being bffs

4 0

4 years ago