Answer:
63
Step-by-step explanation:
9(7+9) = 63 +81
Answer:
Step-by-step explanation:
8. Harry, Louis and Niall are working with exponents. Harry claims 4
2
∙ 4
5 = 4
10
. Louis
claims 4
2
∙ 4
5 = 4
7
. Niall claims 4
2
∙ 4
5 = 167
. Which student has the correct answer?
Explain why.
9. Raymond and Rose were working with exponents.
Part A: Raymond claims that 55 * 52 = 53. Rose argues that 55 * 52 = 57. Which one of
them is correct? Use the properties of exponents to justify your answer.
Part B: Raymond claims that 79/75 = 74. Rose argues that 79/75=745. Which one of
Answer:
30:15 (simplified is 2:1)
Step-by-step explanation:
Out of the 45 times Eric flipped a coin, 30 of them landed on heads. Tails is the the only other probable occurance, so since we know that there are 15 trials left, this means that the coin landed on tails 15 times. This would give a heads to tails ratio of 30:15, but the simplified ratio would be 2:1, because that's the smallest it can be divided evenly.
45-30=15
30:15=2:1
So I would first find out when they are equal then do one more than that. 21x=18x+45, 3x=45, x=15 so the answer would be 16 jerseys
