Answer:
4.5
Step-by-step explanation:
3*3=9
9/2=4.5
2x-5y=11(multiply all by -2. turns into. -4x+10y=-22). -4x+10y=-22. 4x+10(-7.5)=18
4x+10y=18. 4x-75=18
20y=-4. 4x=75+18
y=-7.5. x=23.25
Answer) (23.25, 7.5)
16 * 10%
1.6
16 - 1.6 = 14.40
the soft ball costs 14.40
find the tax
14.4 * .075 = 1.08
add the tax
14.4+1.08
15.48
Answer = 15.48
Using (n-2)180 to find total number of degrees in a 5-sided shape
n= number of sides
(5-2)180=540degrees
So to find x, 100+160+80= 340
540-340=200
So 8x+8+5x+10=200 and solve for x
Answer: 5 children
Step-by-step explanation: The first step is to divide 1221 by 32, and that will yield 38.15625. To find out what that .15625 is, I used this equation
1225 - (38 (the whole number version of the last answer) x 32 (what we initially divided by))