AB = midsegment
ON = 2 × AB
5x + 7 = 2 × 3x
5x + 7 = 6x
x = 7
But the midsegment = 3x
Midsegment = 3 × 7
Midsegment = 21
First, ensure that both sides are single fractions:

By cross multiply, we mean:
1. multiplying the numerator of the left hand side with the denominator of the right hand side.
2.multiplying the numerator of the right hand side with the denominator of the left hand side.
That is ..
a x d = c x b
Answer:
The answer to your question is 14.5 weeks
Step-by-step explanation:
Data
Total cost = C = $87
money earned = m = $6
Number of weeks to have the money = w = ?
Process
1.- Write an equation that represents the situation
Weeks = Total cost / Money earned
w = C/m
2.- Substitute the values
w = 87 / 6
3.- Result
w = 14.5
4.- Conclusion
Niki will last 14.5 weeks to have enough money to buy a dog bed.
Answer:
a_n=a_1+(n-1)d
Step-by-step explanation:
sorry for late anwser