3 years ago

Can someone help me write an equation for this problem?

Mathematics

1 answer:

11Alexandr11 [23.1K]3 years ago

8 0

Y=800+175(9)
And then just solve for y.

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Stella [2.4K]

Answer:

Shesh

Step-by-step explanation:

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3 years ago

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Last questions, plz help

Goryan [66]

Answer:

9. $a_n=7+6n$

10. $a_n=a_{n-1}+7$

Step-by-step explanation:

9. Given the sequence

$13, 19, 25, ...$

In this sequence,

$a_1=13\\ \\a_2=19\\ \\a_3=25\\ \\...$

Note that

$a_2-a_1=19-13=6\\ \\a_3-a_2=25-19=6,$

then the common difference in this sequence is $d=6$

You have

$a_1=13\\ \\d=6,$

then the explicit formula is

$a_n=a_1+(n-1)d\\ \\a_n=13+(n-1)\cdot 6\\ \\a_n=13+6n-6\\ \\a_n=7+6n$

10. Given the sequence

$-10,-3, 4, 11, ...$

In this sequence,

$a_1=-10\\ \\a_2=-3\\ \\a_3=4\\ \\a_4=11\\ \\...$

Note that

$a_2-a_1=-10-(-3)=-10+3=-7\\ \\a_3-a_2=-3-4=-7\\ \\a_4-a_3=11-4=7,$

then the common difference in this sequence is $d=7$

You have

$a_1=-10\\ \\d=7,$

then the recursive formula is

$a_n=a_{n-1}+d\\ \\a_n=a_{n-1}+7$

5 0

3 years ago

Devaughn is 6 years younger than Sydney. The sum of their ages is 50 . What is Sydney's age?

dedylja [7]

Sydney is 44 years old.
50-6=44
Hope i helped.

Mark as brainliest

7 0

4 years ago

Solve for x.

Trava [24]

Answer:

You said what now?

Step-by-step explanation:

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3 years ago

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A holiday meal cost $12. 50 a person plus a delivery fee of $30 is this linear or nonlinear<br>

allochka39001 [22]

Yes it’s linear
y=12.5x+30

7 0

2 years ago