131,517,?,123
Answer:
192
Step-by-step explanation:
Your sequence of numbers is
131 517 … 123
Space them as a two-digit sequence
13 15 17 19 21 23
Now, regroup then as a three-digit sequence
131 517 192 123
The missing number is 192.
= 11(6)
=66
Solution:
Given that,
Laura wrote and solved the following expression to find the total number of beads Lina has
There are 6 beads in each packet
7+4b = 11b
= 11(6)
=66
From given,
Lina has a total of 7 + 4b beads
Given that, There are 6 beads in each packet
Substitute b = 6
7 + 4(6)
Simplify
7 + 24
Add
31
Thus, she has a total of 31 beads and not 66 beads
Laura made a mistake by adding the constant 7 and variable 4b
But a constant and variable cannot be added
Answer:
ya foot
Step-by-step explanation: