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2 years ago

Ben's family is driving on a cross-country trip for their family vacation. The

Mathematics

2 answers:

Zinaida [17]2 years ago

8 0

Answer:

65% of the driving distance remains after the first 3 days.

Explanation:

remaining journey:

→ total journey - journey completed

→ 3100 miles - 1085 miles

→ 2015 miles left

percentage left:

→ $\frac{2015}{3100} * 100$

→ 65%

Fittoniya [83]2 years ago

4 0

Total journey $→ 3100 \: miles$

Journey completed $→ 1085 \: miles$

Left $→2015 \: miles$

Percentage left:

$\frac{2015}{3100} \times100$

$→ 65%$

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3 years ago

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Solve for x. -5/6x-1/9x=-102 x = ______?

kifflom [539]

Answer:x=1/108 is your answer

-5/6x-1/9x=-102

1/x(-5/6-1/9)=-102

1/x=-102/(-17/18)=-102×-18/17=108

x=1/108

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2 years ago

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Determine whether the sequence is arithmetic or geometric.

Zarrin [17]

S1.
32, 16, 0, -16, ...
It's an arithmetic sequence:
$a_1=32;\ d=16-32=-16\\\\a_n=a_1+(n-1)d\\\\a_n=32+(n-1)\cdot(-16)=32-16n+16=48-16n$

S2.
32, 16, 8, 4, ...
It's a geometric sequence:
$a_1=32;\ r=16:32=\dfrac{1}{2}\\\\a_n=a_1r^{n-1}\\\\a_n=32\cdot\left(\dfrac{1}{2}\right)^{n-1}$

Answer: sequence 1 is arithmetic and sequence 2 is geometric.

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3 years ago

Solve the x 2(2.5x + 8) = 11

Len [333]

Step-by-step explanation:

2×2.5x+2×8=11

5x+16=11

5x=11-16

5x=-5

x=-1

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2 years ago