6 groups of five people
because 30/5 = 6
so 6 groups
Answer:
1 = 9-3÷1/3+1
11 = 15-1(12÷4+1)
Step-by-step explanation:
Order of operations: PEMDAS
Parentheses Exponents Multiplication Division Addition Subtraction
9-3÷1/3+1
9-9+1
0+1
<u>=1</u>
15-1(12÷4+1)
15-1(3+1)
15-1(4)
15-4
<u>=11</u>
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<u>:) ur welcome</u>
Answer:
Check pdf
Step-by-step explanation:
48-(-31)
when you subtract a negative number it becomes addition which would look like
48+31
which would equal 79
In this question, there are 10 digit phone number which was divided into 3-3-4 digits. Every first digit of the division should be 2-9 which mean only 8 possibilities. The other digits would be 0-9 which mean 10 possibilities. Then the calculation would be:
8*10*10 * 8*10*10 * 8*10*10*10 = 8^3 * 10*7= 512 * 10^7= 5.12 * 10^9
If you convert <span>400,000,000 into the scientific form it will become 4* 10^8. Since 5.12*10^9 > 4 * 10^8, then it is clear that the number should be enough</span>
