Answer:
x=-37/3
y=-22/3
Step-by-step explanation:
-2x+2y=10 (1)
2x-5y=12 (2)
(1)+(2) <=> -3y=22
4.a)2x+10 >27
4.b) 27-10= 17
17/2=8.5
3.a) 40-2x>7
3.b) 7-40=-33
-33/-2=16.5
So 16 students in her class
Answer:
3x+1=10, x =3
-3+8n=-5 x =-1
4h-6=22 h =7
hope this helped you out!
Linda's original savings is $800.
3/4 of savings on furniture.
4/4 - 3/4 = 1/4 this is spent on the TV.
200 ÷ 1/4 = 0 *equation to be used in finding the original amount of Linda's savings.
Dividing fractions:
Step 1. Get the reciprocal of the 2nd fraction. 200/1 is the 1st fraction. 1/4 is the second fraction. The reciprocal of 1/4 is 4/1. Reciprocal means swapping the numerator and denominator.
Step 2. Multiply the 1st fraction to the reciprocal of the 2nd fraction.
200/1 * 4/1 = (200 * 4) / (1 * 1) = 800 / 1.
Step 3. Simplify the fraction.
800 / 1 = 800.
Answer:
Domain: { x |x ∈ R, -4 <= x <= 5}
Range: {y | y ∈ R, -3 <= y <= 4}
