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Serhud [2]
2 years ago
12

Amy can ride her bike 4 miles in 30 minutes. Sebastian can ride his bike 3 miles in 24 minutes. How long, in miles, does it take

Amy to ride 3 miles?
Mathematics
2 answers:
Naddik [55]2 years ago
8 0

Answer:1.6 miles

Step-by-step explanation:

If Amy can ride 4 miles in 30 minutes, to get her distance in 1 minute, we need to divide 4 miles by 30:

4/30=2/15 miles per minute

Hence, in 12 minutes, she can ride 12 times that:

2/15 x 12 = 1/8= 1.6 miles

scoray [572]2 years ago
6 0

Answer:

The answer is 22.5

Step-by-step explanation:

Hope it Helps

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Find the sum of the first 8 terms in the geometric sequence: 1, 3, 9, 27,
Butoxors [25]

The sum of the first 8 items in the geometric sequence:1, 3, 9, 27, ...etc is 3280.

Step-by-step explanation:

The given is,

            sequence: 1,3,9,21,.. etc

Step:1

           The given is based on multiplication of 3 to previous number,

           ( x - previous number, next number = 3 × x )

            First term : 1

            Second term : 1 × 3 = 3

           Third term : 3 × 3 = 9

            Fourth term : 9 × 3 =27

            Fifth term : 27 × 3 = 81

            Sixth term : 81 × 3 = 243

            Seventh term : 243 × 3 = 729

            Eighth term : 729 × 3 = 2187

Step:2

            Sum of first 8 terms = 1 + 3 + 9 + 27 + 81 + 243 + 729 + 2187

                                              = 3280

            Sum of first 8 terms = 3280

Result:

           The sum of the first 8 items in the geometric sequence:1, 3, 9, 27, ...etc is 3280.

                                       

7 0
2 years ago
What is the domain and range?
MrRissso [65]

Hello from MrBillDoesMath!

Answer:

Domain = { 5. 10. 15. 20}

Range =  -3,-1,1,3} .


Discussion:

The domain is the set of all "x" values, that is  { 5. 10. 15. 20} and the range is (-3,-1,1,3} . The arrows in the diagram show the mapping between the domain and the range. For examples, 5 -> 1 ( "x value 5 is mapped to y value 1"),        10 ->3, 15 ->-3, and 20 -> -2


Thank you,

MrB

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3 years ago
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The expression is 10 - 7 x 2 = 6.

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patriot [66]

Answer:

h(4) = 1/2 (4) - 8 = 2 - 8 = -6

Step-by-step explanation:

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