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3 years ago

8

Both Tyrone and Albert walk to and from school every day. Qlbert has to walk 1.25 miles farther than Tyrone does each way. If Ty

rone's house id 0.6 mile from school, how far do the two boys walk altogether?

1 answer:

spayn [35]3 years ago

8 0

Answer: 0.6 + 1.25 = 1.85

0.6 + 1.85 = 2.45

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Answer:

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Step-by-step explanation:

we know that

In an <u><em>Arithmetic Sequence</em></u> the difference between one term and the next is a constant, called the common difference

The formula for an Arithmetic Sequence is equal to

$a_n=a_1+(n-1)d$

where

d is the common difference

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In this problem we have

$a_1=-10\\d=-2$

substitute

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$a_n=-10-2n+2$

$a_n=-2n-8$

so

<u><em>Find the first ten terms</em></u>

$a_1=-10$

For n=2 ----> $a_2=-2(2)-8=-12$

For n=3 ----> $a_3=-2(3)-8=-14$

For n=4 ----> $a_4=-2(4)-8=-16$

For n=5 ----> $a_5=-2(5)-8=-18$

For n=6 ----> $a_6=-2(6)-8=-20$

For n=7 ----> $a_7=-2(7)-8=-22$

For n=8 ----> $a_8=-2(8)-8=-24$

For n=9 ----> $a_9=-2(9)-8=-26$

For n=10 ----> $a_1_0=-2(10)-8=-28$

The sequence is

$-10,-12,-14,-16,-18,-20,-22,-24,-26,-28,...$

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