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2 years ago

3p + 7q = 55 7p + 7q = 91 What is p and q

Mathematics

2 answers:

kkurt [141]2 years ago

7 0

Step-by-step explanation:

3p + 7q = 55

7p + 7q = 91

(-)

-4p=-36

p=9

q=4

valentinak56 [21]2 years ago

7 0

Answer:

p = 9 and q = 4

Step-by-step explanation:

3p + 7q = 55 -- (1)

7p + 7q = 91 -- (2)

(2) - (1) : 4p = 36

p = 9 -- (3)

Substituting (3) into (1),

27 + 7q = 55

7q = 28

q = 4 -- (4)

Therefore, p = 9 and q = 4

If this helps you, please mark brainliest!

Have a nice day!

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What is the solution to y-7>3+2y

Alex17521 [72]

Solving:

-7 + y = 3 + 2y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-2y' to each side of the equation.

-7 + y + -2y = 3 + 2y + -2y

Combine like terms: y + -2y = -1y

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Combine like terms: 2y + -2y = 0

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Add '7' to each side of the equation.

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The track team will need a large bus and a small bus to travel to the track meet. The large bus can carry 85 passengers and the

MAXImum [283]

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Alborosie

Answer:

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Step-by-step explanation:

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gtnhenbr [62]

Greetings!

"The difference of six times a number and 7 is -49"...

In number and variables, this would be:
 $6x-7=-49
$

Add 7 to both sides.
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$(6x)/6=(-42)/6$
Simplify.
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Hope this helps.
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