Answer:
Step-by-step explanation:
LEt the number be x.
2x - 5 = 3
2x = 3 + 5 = 8
x = 8/2 = 4
To solve the equation: add 5 to both sides and then multiply by 1/2.
Answer:
12
Step-by-step explanation:
When you subtract a negative number, the two negatives make a plus sign.
4 - (-8)
= 4 + 8
= 12
Answer:
The engine should be turned off at t = 1
Step-by-step explanation:
The detailed and step by step calculation is shown in the attachment below
Answer:
y coordinate of the solution to the system is -5
Let x be the number of treats bought
Let y be the pounds of food bought
25= 2y+x
Given that she has buys 9 pounds of dog food:
25= 2(9)+x
25=18 +x
25-18 =x
7=x
With the money she has left over, she can buy 7 treats.
Hope I helped :)
