1.Solve the equation 2n - 12 = -16
2.Slice of pizza is $3.20 and a drink is $1. You spent $10.60. Write and solve an equation using “p” number of slices of pizza you bought.
3.Baby calf weighs 150 pounds at birth and gains 2 lbs each day. How many days to get to 224lbs? Write and solve and equation using “d” days for how old he is at 224 pounds.
4.Rita has stickers. She gave half of them to her friend but her brother gave her 8. She ends up with 12 stickers. What arithmetic operations are used to solve this?
5.What is first step in solving this equation? 2.4n - 6.4 = -14.8
1. To solve the equation 2n - 12 = -16, we can start by isolating the variable n.
Add 12 to both sides of the equation:
2n - 12 + 12 = -16 + 12
Simplify:
2n = -4
Divide both sides by 2:
n = -2
2. Let p represent the number of slices of pizza bought. The equation can be written as:
3.20p + 1 = 10.60
Subtract 1 from both sides:
3.20p = 9.60
Divide both sides by 3.20:
p = 3
3. Let d represent the number of days. The equation can be written as:
150 + 2d = 224
Subtract 150 from both sides:
2d = 74
Divide both sides by 2:
d = 37
4. To solve this problem, we use the operations of division and addition (or subtraction).
First, divide the total number of stickers (12) by half (2):
12 ÷ 2 = 6
This gives us the number of stickers that Rita had originally.
Then, subtract the number of stickers her brother gave her (8):
6 - 8 = -2
Since we cannot have a negative number of stickers, it seems like there may be an error or missing information in the problem.
5. The first step in solving the equation 2.4n - 6.4 = -14.8 is to isolate the term with the variable n by adding or subtracting.
In this case, we can start by adding 6.4 to both sides:
2.4n - 6.4 + 6.4 = -14.8 + 6.4
Simplify:
2.4n = -8.4
The first step is now complete, and you can continue to solve for n by dividing both sides by 2.4.