Answer:
9 years old.
Step-by-step explanation:
Since the ages of all of these students are being represented in relation to the middle student's age then we can create formulas for each student and then apply them to the formula for the sum of their ages and solve for the middle child's age (M) like so... (oldest child's age is represented by variable O and youngest child's age is represented by variable Y)
O = M + 6
Y = M - 3
30 = (M+6) + M + (M-3) ... combine like terms
30 = 3M + 3 ... subtract 3 from both sides
27 = 3M ... divide both sides by 3
9 = M
Now we know that the middle child is 9 years old.
Word: Two Million Nine Hundred and Fourty Seven
When you round 4, 398, 202 to the nearest 100 it means to ignore the 4,398 and just look at 202. You could either round to 200 or 300 since you want to round to the nearest 100. Since the ones place is 2, you round the number to 200.
Answer: 4,398,200
F-1(x) = x\5 + 6/5
hope this helps
Hello :
to complete the factorization <span>unit tiles are needed :
</span>"3 negative unit tiles" and "<span>4 positive unit tiles"because : -3 and 4 are roots for
x²-x-12
x²-x-12 = (x+3)(x-4)</span>
