Answer:
Just wanted the points
Step-by-step explanation:
THANKS
<h3>Given</h3>
Two positive integers x and y
x - y = 4
x² + y = 68
<h3>Find</h3>
x and y
<h3>Solution</h3>
Add the two equations together.
... (x - y) + (x² + y) = (4) + (68)
... x² + x = 72
Rearrange to standard form and factor.
... x² + x - 72 = 0
... (x + 9)(x - 8) = 0
Use the zero product rule to find the solutions. That rule says the product is zero when one or more factors is zero.
... x + 9 = 0 ⇒ x = -9
... x - 8 = 0 ⇒ x = 8 . . . . . . the positive solution
Then we can find y from
... 8 - y = 4
... y = 4 . . . . . . . add y-4 to the equation
The two positive integers are 8 and 4.
Answer:
10+2x
Step-by-step explanation:
A rectangle has 4 sides. Two pairs of sides are congruent.
For example a rectangle could have sides of 6, 10, 6, and 10.
So the perimeter would be the sum of those sides, 6+6+10+10.
6+6+10+10 can be written like 2(6)+2(10)
For the rectangle in your question it would be 5+5+x+x, which can be written like 2(5)+2(x)
Simplify to 10+2x.
Answer:
i dont get the question. can you be more especific.
Step-by-step explanation:
Answer:
q = 4
Step-by-step explanation:
given p and q vary inversely then the equation relating them is
p = 
← k is the constant of variation
to find k use the condition p = 29 when q = 16 , then
29 = 
( multiply both sides by 16 )
464 = k
p = 
← equation of variation
when p = 116 , then
116 = ( multiply both sides by q )
116q = 464 ( divide both sides by 116 )
q = 4
