Answer: 3/8
Step-by-step explanation: 3/4 divided by 2 or .75/2
Answer:3 hours
Step-by-step explanation:
Juno jogs at rate of 6 miles and bikes at rate of 14 miles covering total of 48 miles.
Akima jogs at rate of 8 miles and bikes at rate of 12 miles covering total of 44 miles.
Let jogging be represented by j
Let biking be represented by b
For Juno, 6j + 14b = 48 ......... i
For Akima, 8j + 12b = 44.......... ii
Multiply equation I by 8
Multiply equation ii by 6
48j + 112b = 384 ........... iii
48j + 72b = 264 ............. iv
Subtract equation iv from iii
48j + 112b = 384
- 48j + 72b = 264
40b = 120
b = 120/40
b = 3
Number of hours spent biking is 3 hours.
Solve for by simplifying both sides of the equation, then isolating the variable.
b= −8
It would be D. 138 because 180-42=138
Answer:
Dimensions of a matrix:
r × c
Where r is the no. of rows and c is the no. of columns
If A has 4 rows (horizontal) and 3 columns (vertical),
Dimensions are: 4 × 3
If A has 3 rows (horizontal) and 4 columns (vertical),
Dimensions are: 3 × 4
