Mr. Walker asked his students to use the associative property to find an expression that is equivalent to (13 + 15 + 20) + (20 + 47 + 18). The expressions that four students created are shown in the table below. Expressions Generated by Students
Student
Expression
Jeremy
(20 + 13 + 15) + (20 + 47 + 18)
Layla
(20 + 47 + 18) + (13 + 15 + 20)
Keith
(13 + 20) + (20 + 47 + 18) + 15
Melinda
(13 + 15 + 20 + 20) + (47 + 18)
How many of the students correctly applied only the associative property to rewrite the expression?
one
two
three
four
1 answer:
I got it as 4 when calculating all have the same number which is 133
You might be interested in
Answer:
period.
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
pls mark me brainless pls
Answer: 42/13
Step-by-step explanation: Multiply everything by 7 to eliminate the fraction:
k+ 21 - 14k = -21
Isolate the variable:
k - 14k = -21-21
13k= -42
divide the sides by -13.
42/13
1 Simplify
1×12
12×(2×11)
2 Simplify
2×11
12×22
3 Simplify
264
or
1 x 12 x 2 x 11 =
[Answer] 264
Answer:
V = 3239
Step-by-step explanation:
The volume formula for a regular hexagonal prism is 3√3/2a^2h when you input the values you get 3238.74, rounded to the nearest whole number you get 3239, the student most likely used the radius of the hexagon in the equation instead of the height.
Please mark as brainliest :)