1:3 = 16/48 and 1/3.
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Answer:
300000
30000
3000
300
Step-by-step explanation:
Use the zero's trick for 10's.
Answer:
The fourth line will have 15 marbles
Step-by-step explanation:
The third line has 7 marbles. So, you double that and add one in order to find the number of marbles in the fourth line.
7*2=14
14+1=15
Answer:80
Step-by-step explanation:2 times 5 is 10. 10 times 67 is 670. 670 divided by 67 is 10. 10 times 8 is 80x
The trick to calculating the area here is to subdivide the diagram into smaller parts. For example, there's a 3 cm-by-3cm square. The rectangle is 4 cm by 8 cm.. The triangle has a base of 5 cm and a height of 3 cm.
Total area = area of square + area of rectangle + area of triangle
= 9 cm^2 + 32 cm^2 + (1/2)(5 cm)(3 cm)
= (9 + 32 + 7.5) cm^2
= 48.5 cm^2 (total area of figure)
