Answer:
yay thanks brainliest?
Step-by-step explanation:
Since the coefficient of x is 3, you’d need to divide each number by three. So, you’d get -1
First, the formula for the average of a data set must be defined. It is calculated by adding all the numbers in the data set and then dividing the sum by the number of data. In this case, the average is set to be equal to $400 with the total number of data being 3, with the September expenditure set as an unknown, x. The equation is then set-up to be: 400 = (401.5 + 250 + x)/3. Thus, Joshua can spend as much as $ 548.5 to be able to have the same average as in his second quarter expenditure.
Answer:
B
Step-by-step explanation:
Using the method of cross- multiplication
= 
⇒ ad = bc
If ad ≠ bc then equation is not true
A
= 
, then
10 × 6 = 12 × 5 = 60 ← equation is true
B
= 
, then
69 × 10 = 690 and 100 × 6 = 600
690 ≠ 600 ← equation not true
C
= 
, then
10 × 100 = 5 × 200 = 1000 ← equation is true
D
= 
, then
12 × 2 = 4 × 6 = 24 ← equation is true
To find the length you divide 36 by 5. if you can do that you have the answer :)
