Ok, if you say so. Jean took 1/2 hour to complete 3/8 of a math problem.
Answer:
x = 6
y = 4
Step-by-step explanation:
Let the two numbers be x and y
<u><em>Condition 1:</em></u>
7x+3y = 54 -----------(1)
<u><em>Condition 2:</em></u>
x = 2+y -----------------(2)
<em>Putting (2) in (1)</em>
=> 7(y+2)+3y = 54
=> 7y+14+3y = 54
=> 10y = 54-14
=> 10y = 40
<em>Dividing both sides by 10</em>
=> y = 4
<em>Now putting y = 4 in eq(2)</em>
=> x = 2+4
=> x = 6
Answer: x < 0
<u>Step-by-step explanation:</u>
16) x < 0
Graph: ←----------o
0
Interval Notation: (-∞, 0)
Answer:
48
y
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = 
h (b₁ + b₂ )
where h is the height and b₁, b₂ the parallel bases , then
A = × 4
× (9x²y + 15x²y )
= 2 × 24x²y
= 48y
