Last Friday Ally had $21.43. Over the weekend she received some money for cleaning the attic. She now has $42. How much money did she receive? Write an equation to represent the problem and solve.(1 point)
Responses
42 + x = 21.43; $21.50
21.43 + x = 42; x = $20.57
21.43 + x = 42; $17.75
42 + x = 21.43; x= $21.00
Let x represent the amount of money Ally received for cleaning the attic.
The equation to represent the problem is 21.43 + x = 42.
Solving for x, we subtract 21.43 from both sides of the equation:
x = 42 - 21.43 = 20.57
Therefore, Ally received $20.57 for cleaning the attic.
How many packages of diapers can you buy with $45 if one package costs $9? Write an equation for the problem and solve.(1 point)
Responses
9d=45; 5 packages of diapers
45d=9; You can't buy a whole package.
9d=45; 9 packages of diapers
45d=9; 5 packages of diapers
Let d represent the number of packages of diapers.
The equation to represent the problem is 9d = 45.
Solving for d, we divide both sides of the equation by 9:
d = 45/9 = 5
Therefore, you can buy 5 packages of diapers with $45.
You have a certain number of snacks you want to hand out to your friends. If you give each of your 7 friends 11 snacks, how many snacks did you have originally? Write an equation for this problem and solve.(1 point)
Responses
117=x
; 77 snacks
11 sevenths is equal to x; 77 snacks
x7=11
; 77 snacks
x over 7 is equal to 11; 77 snacks
117=x
; 18 snacks
11 sevenths is equal to x; 18 snacks
x7=11
; 4 snacks
x over 7 is equal to 11; 4 snacks
Let x represent the number of snacks you originally had.
The equation to represent the problem is 7 * 11 = x.
Solving for x, we multiply 7 by 11:
x = 7 * 11 = 77
Therefore, you originally had 77 snacks.
To solve this problem, we first need to set up an equation representing the situation. Ally had $21.43 last Friday, and over the weekend she received some money for cleaning the attic. Now she has $42. Let x represent the amount of money she received. The equation to represent the problem is:
21.43 + x = 42
To solve this equation, we need to isolate x. So, we subtract 21.43 from both sides of the equation:
x = 42 - 21.43
Simplifying:
x = 20.57
Therefore, Ally received $20.57 for cleaning the attic.
To solve this problem, we need to set up an equation to represent the situation. We know that Ally had $21.43 last Friday, and over the weekend, she received some money. Now she has $42. Let's use the variable x to represent the amount of money she received.
The equation that represents the problem is 21.43 + x = 42. To solve this equation for x, we need to isolate the variable on one side of the equation.
To isolate x, we can subtract 21.43 from both sides of the equation:
21.43 + x - 21.43 = 42 - 21.43
This simplifies to:
x = 42 - 21.43
Calculating the difference on the right-hand side gives us:
x = 20.57
Therefore, Ally received $20.57.
The correct answer is: 21.43 + x = 42; x = $20.57.