Sam is 5
Tom is 3 times older so 3*5=15
The difference between them is 15-5=10 years
When Sam is 20 we add the difference 20+10=30, and we have Tom's age :)
Answer:
$6.84
Step-by-step explanation:
1 pound = $2.36
2.9 pounds = 2.36 * 2.9 = $6.844
Rounded to 2dp = $6.84
Answer:
5
Step-by-step explanation:
the answer is 5 because it sounds good
Answer:
1) 5/6 miles
2) 2 7/24 cups
Step-by-step explanation:
1) Convert each mixed number into an improper fraction.
1 ½ = (2×1+1)/2 = 3/2
2 ⅓ = (3×2+1)/3 = 7/3
To add or subtract, find the common denominator.
3/2 = 9/6
7/3 = 14/6
The difference is:
14/6 − 9/6 = 5/6
2) To add the fractions, first find the common denominator (least common multiple of the denominators). To do that, write the prime factorizations:
3 = 3
8 = 2³
4 = 2²
LCM = 2³ × 3 = 24
2/3 = 16/24
7/8 = 21/24
3/4 = 18/24
The sum is:
(16 + 21 + 18) / 24
55/24
To convert to a mixed number, divide the numerator by the denominator. 24 goes into 55 two times with a remainder of 7.
55/24 = 2 7/24