Hey there!
If x = 4 and y = 2, then substitute them into the equation
7(4)(2)(2)
7(4) = 28
28(2)(2)
28(2) = 56
56(2) = 112
Answer: 112
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Answer:
81
Step-by-step explanation:
The formula for calculating the sum of geometric series varies depending on the value of its common ratio.
Given the common ratio to be 2/3 which is less than 1, the formula to be used is given as;
Sn = a(1-rⁿ)/1-r
n is the number of terms of the series
a is the first term
r is the common ratio.
Sn is the sum of the series
Given n = 3, r = 2/3 and Sn = 171,
a= ?
Substituting this values in the formula we have;
171 = a{1-(2/3)³}/1-2/3
171 = a{1-8/27}/(1/3)
171 = a(19/27)/(1/3)
171 = 19a/27 × 3/1
171 = 57a/27
57a = 171×27
57a = 4,617
a = 4,617/57
a = 81
The first term of the series is 81
Answer:
A car weighs ABOUT 1 ton.
8 oz. is half a pound. so she will need less than a pound of chocolate.
