Step-by-step explanation:
hope u will get help with the attachment
Answer:
18
Step-by-step explanation:
David=x
Michelle=x-2
Karen=x-2+6=x+4
sum of ages=62
x+x-2+x+4=62
3x=60
x=20
age of Michelle=20-2=18
Answer: I believe it’s 114 boys and 110 girls?
Step-by-step explanation: because you are adding that 4 to the 110 and the girls would stay the same because you never said anything about adding more numbers for the girls.(This confused me because your asking this question (ignore that)
Answer:
x = 9
Step-by-step explanation:
Distribute
2x+2*5=3x+1
2x+10=3x+1
Subtract 3x from both sides
-x+10=1
Subtract 10 from both sides
-x=-9
Multiply both sides by -1
x=9
Answer:
2.915 × 10^9
Step-by-step explanation:
you count the from right to left since its a positive number until you get one number in front. That's where you place your decimal. Since there's 9 numbers behind the 2 it will be 10 to the power of 9.
