Answer:
Sara's number is 27
Step-by-step explanation:
27-19=8
-5*8=-40
First, you need to find a common denominator
1/5=7/35
3/7=15/35
7/35 + 15/35 = 22/35 or ≈ 0.63
Answer:
2, 6, 18, 54, 162
Step-by-step explanation:
In a geometric sequence, terms that are 2 terms apart (2nd & 4th, for example) have a ratio that is the 2nd power of the common ratio. Since 54/6 = 9 = 3², the common ratio is 3.
The first term will be the 2nd term divided by that ratio; the 5th term will be the 4th term multiplied by that ratio. You can figure the 3rd term any of several ways (and they should all give the same value): multiply the 2nd term, divide the 3rd term, or find the geometric mean of the 2nd & 4th terms: √(6·54) = 18.
Answer:
Card picked=2
P(factors of 28)={1<u>,2,</u>4,7,14,28}
total cards=4
in percentage=4 x 20 + 20
80+20=100
Therefore 2 in percentage will be
2 x 20 + 20
=40+20=60%
3/5 = 60% and there’s 2/5 leftover and 2/5=40%