Question

A bat ate a total of 45 dragonflies for 3 consecutive nights.
Each night he ate 5 more than the night before.
a) Write an algebraic equation to show how many flies the bat ate?
b) Use the equation to show how many flies the bat ate the last night?

Answer 1

Answer:

• x+(x+5)+(x+5+5)=45
• bat ate 10 1st day, (10+5=15)15 2nd day, (15+5=20)20 3rd day . total 10+15+20=45

Step-by-step explanation:

x+(x+5)+(x+5+5)=45

x+x+5+x+10=45

x+x+x+15=45

3x+15=45

3x=45-15

3x=30

x=30/3

x=10