Are these solutions?
Is (3,2) a solution to: 7x = y + 19
Give proof.
yes 21 = 21
Is 4x + 8 = 2y + 2 a solution for (1, 5)
Yes, 12 = 12, (must have proof)
NO CALCULATOR
200-5(40-10 div 2)
25
is the grade below an A, C or F? NO CALC.
47/90
An F, just a little above half, it is a 52%
\sqrt{64}+\sqrt{49}-\sqrt{4}
8+7-2 = 13
Is (-3, 5) a solution to: 4x + 1 = -y - 6
Give proof.
yes. -11 = -11 (must have proof)
Is x + 9 = -2y + 1 a solution for (-6, 2).
give proof
No, 3 does NOT = -3. (must have proof)
NO CALCULATOR
6^2-9 div 3+1^5=
33 + 1 = 34
What is 30% of 450?
45 x 3 = 135
\sqrt{?}= 11
121
Is (-1, 0) a solution to: 7x + 5 = 9y - 2
Give proof.
yes. -2 = -2 (must have proof)
Is -6x - 1 = 3y - 5 a solution for (-5, 11)
Give proof.
No 29 does not = 28. (must have proof)
NO CALCULATOR:
(50-12 div 6)/(12-2(3)
48/6 = 8
What is 5% of 870?
87div2=43.5
Give your answer as a fraction:
1-\sqrt{36/49}
1 - 6/7= 1/7
Is (5, 7) a solution to: 8y - 10 = 2x + 16
Give proof.
No 46 does NOT = 26 (be careful you did not switch your x&y)
Is 6y + 1 = 5x -3 a solution for (1, 2)
No, be careful of your x and y's.
13 does NOT = 2. (must have proof)
NO CALC:
(36/9)^2-(25/5)^3=
15 - 125 = -109 (must have the negative!)
What is 15% of 360?
10% = 36, 5% = 18, so 36 + 18 = 54
No Calc:
Take 144 divide it by 4, then divide it by 6, then add 4, then square it.
36, 6, 10, 100 = you should have 100
Is (-5, 4) a solution to: 5y = 10 - 2x
Give proof.
Yes 20 = 10 + 10 = 20, (must have proof)
Is -9y - 23 = -x + 5 a solution for (10, -2)
Give proof.
YES, -5 = -5, be careful of your x &y's
(must have proof)
NO CALCULATOR:
(100/20)^2-(45/5)^2+3^3=
25 - 81 + 27 = -29 (MUST HAVE NEGATIVE)
What is 65% of 4,340?
NO CALCULATOR!
2821
If the plumber charged you $65 per hour, and charged $130 to come diagnose the problem. How many hours did they stay if, you spent a total of $357.50
3.5 hours