Answer: b. 3
Therefore, we will have the same number of Mondays and Wednesdays if the first day is either Monday, Thursday or Friday. Making 3 possible days
Step-by-step explanation:
Given that there are 31 days in the month.
And there are equal number of Mondays and Wednesdays within a 7 day bracket.
30 - 4(7) = 3days
After four weeks we are left with three days.
So, if the first day is;
Monday - we will have 5 Mondays and Wednesdays each
Tuesday - we have more Wednesday
Wednesday - we will have more Wednesday
Thursday - we will have 4 Mondays and Wednesdays each
Friday - we will have 4 Mondays and Wednesdays each
Saturday - we will have more Monday
Sunday - we will have more Monday
Therefore, we will have the same number of Mondays and Wednesdays if the first day is either Monday, Thursday or Friday. Making 3 possible days
You didn't post a question.
Answer:
{x = -3
, y=2 (Isolved for both variables be elimination)
Step-by-step explanation:
Solve the following system:
{3 x + 5 y = 1 | (equation 1)
7 x + 4 y = -13 | (equation 2)
Swap equation 1 with equation 2:
{7 x + 4 y = -13 | (equation 1)
3 x + 5 y = 1 | (equation 2)
Subtract 3/7 × (equation 1) from equation 2:
{7 x + 4 y = -13 | (equation 1)
0 x+(23 y)/7 = 46/7 | (equation 2)
Multiply equation 2 by 7/23:
{7 x + 4 y = -13 | (equation 1)
0 x+y = 2 | (equation 2)
Subtract 4 × (equation 2) from equation 1:
{7 x+0 y = -21 | (equation 1)
0 x+y = 2 | (equation 2)
Divide equation 1 by 7:
{x+0 y = -3 | (equation 1)
0 x+y = 2 | (equation 2)
Collect results:
Answer: {x = -3
, y=2
Answer:
5p9
Step-by-step explanation:
