The correct answer is addition and multiplication.
To solve the problem using the equation b8 + 25 = 500, you would first add 25 to both sides of the equation to isolate b8.
b8 + 25 - 25 = 500 - 25
This simplifies to:
b8 = 475
Then, to find the starting number of beads, you would divide both sides of the equation by 8.
b = 475 / 8
This gives you the starting number of beads, which is 59.375. However, since you cannot have a fraction of a bead, we can assume that Niel originally had 59 beads.
Niel has a bucket of beads. He uses them to make 8 identical necklaces and then buys 25 beads at the store. He ends up with a total of 500 beads. How many did he start with? Identify the operations needed to solve this problem using the equation b8 + 25 = 500
.(1 point)
Responses
addition and division
addition and division
subtraction and division
subtraction and division
subtraction and multiplication
subtraction and multiplication
addition and multiplication
5 answers
addition and division
addition and division
subtraction and division
subtraction and division
subtraction and multiplication
subtraction and multiplication
addition and multiplication
addition and division
subtraction and division
subtraction and division
subtraction and multiplication
subtraction and multiplication
addition and multiplication
Apologies for the previous confusion. The correct operations needed to solve the problem using the equation b8 + 25 = 500 are addition and subtraction.
First, you would subtract 25 from both sides of the equation to isolate b8.
b8 = 500 - 25
This simplifies to:
b8 = 475
Then, to find the starting number of beads, you would divide both sides of the equation by 8.
b = 475 / 8
This gives you the starting number of beads, which is 59.375. However, since you cannot have a fraction of a bead, we can assume that Niel originally had 59 beads.
First, you would subtract 25 from both sides of the equation to isolate b8.
b8 = 500 - 25
This simplifies to:
b8 = 475
Then, to find the starting number of beads, you would divide both sides of the equation by 8.
b = 475 / 8
This gives you the starting number of beads, which is 59.375. However, since you cannot have a fraction of a bead, we can assume that Niel originally had 59 beads.
A window cleaner has enough supplies to clean 21 windows per office building on a certain number of buildings. They can also clean the windows of a school with 42 windows. Altogether, there are enough supplies to clean 126 windows. How many office buildings can be washed? Identify the equation that would be used to solve this problem algebraically.(1 point)
Responses
21x−42=126
21 x minus 42 equals 126
42x+21=126
42 x plus 21 equals 126
42x−21=126
42 x minus 21 equals 126
21x+42=126
Responses
21x−42=126
21 x minus 42 equals 126
42x+21=126
42 x plus 21 equals 126
42x−21=126
42 x minus 21 equals 126
21x+42=126
The equation that would be used to solve this problem algebraically is 21x + 42 = 126.
Let x represent the number of office buildings. Since each office building has 21 windows, the total number of windows cleaned in the office buildings would be 21x. Additionally, the school with 42 windows is also being cleaned. The sum of the windows cleaned in the office buildings and the school should equal the total number of windows cleaned, which is 126.
So the equation is: 21x + 42 = 126.
Let x represent the number of office buildings. Since each office building has 21 windows, the total number of windows cleaned in the office buildings would be 21x. Additionally, the school with 42 windows is also being cleaned. The sum of the windows cleaned in the office buildings and the school should equal the total number of windows cleaned, which is 126.
So the equation is: 21x + 42 = 126.