Answer:
48
Step-by-step explanation:
There are 3 one-digit numbers: 3, 5, 7.
There are 15 two-digit numbers: 33, 35, 37, 43, 45, 47, 53, 55, 57, 63, 65, 67, 73, 75, 77.
There are 30 3-digit numbers, from 333 to 477. The leading digit must be 3 or 4; the trailing digit must be 3, 5, or 7; and the middle digit can be any of the 5 digits, for a total of 2×5×3 = 30 possible 3-digit numbers. (That is, 300 or 400 can be added to any of the 15 2-digit numbers.)
Using the given digits, 3+15+30 = 48 odd numbers less than 500 can be written.
Answer:
11) if you are a freshman, then you have to attend the orientation
12) if you finish the marathon then you will get a medal
Step-by-step explanation:
Answer:
a=14, b=58, c=26.5
Step-by-step explanation:
If your school is 30 feet tall and 1 feet is 1.26 cm, you would multiply 30 and 1.26 to get the height of the scale model which is 37.8 cm. Then, if each toothpick is 6.3 cm, you would take 37.8 and divide it by 6.3 to get the number of toothpicks you need to build the school, which is 6.
The model will be 6 toothpicks tall.