Multiple Choice
Solve the equation.
1. (Image: Start Fraction y minus 5 over 3 End Fraction)= 1 (1 point)
–2
8
18
6
2. 6x + 29 = 5 (1 point)
–4
–18
204
–144
3. Combine like terms:
–21a + 16a (1 point)
–5a
5a
37a
–37a
Simplify the expression.
4. 9a – b – 2a – 10b (1 point)
–7a + 11b
11a + 9b
–11a – 9b
7a – 11b
5. 5(x + 10) + x (1 point)
6x + 15
5x + 15
6x + 50
4x – 50
Solve the equation.
6. –4n + 7 + 2n = 1 (1 point)
1
3
–3
4
7. 4(y – 4) = 8 (1 point)
–2
2
4
6
8. Raymond buys bottles of water at $2.10 each and a large pizza at $12.99. The total cost was $21.39. How many bottles of water b did he buy?
2.10b + 12.99 = 21.39; 4 bottles
2.10 + 12.99b = 21.39; 4 bottles
2.10c = 21.39 + 12.99; 6 bottles
21.39 – 2.10b = 12.99; 16 bottles
2.10b + 12.99 = 21.39; 4 bottles
1.
y - 5/3 = 1
y = 1 5/3 or 8/3
if you meant : (y-5)/3 = 1
y-5 = 3
y = 8
2.
6x + 29 = 5
6x = -24
x = -3
show me some work on the rest of them
looks like the bot only tried to answer the last one ...
from the question I would say:
2.1b + 12.99 = 21.39
2.1b = 8.4
b = 4
So he bought 4 bottles of water, the bot got it right.