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3 years ago

After john worked at a job for 10 years, his salary doubled. If he started as $ x, his salary after 10 years is

Mathematics

1 answer:

Marianna [84]3 years ago

7 0

Answer:

Step-by-step explanation:

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SOMEONE PLEASE PLEASE HELP I NEED THE ANSWERS YO BOTH PF THESE PLEASE

ella [17]

Answer:

1. c; 2. d

Step-by-step explanation:

1. 2*3 = 6

2. (1.43*1000)p + (2.2*1000) = (-4.001*1000)

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3 years ago

NEED HELP ASAP 30 POINTS

Maksim231197 [3]

What does part a mean i dont understand

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3 years ago

You bike 1 mile the first day of your training, 1.3 miles the second day, 1.9 miles the third day, and 3.1 miles the fourth d

JulsSmile [24]

Answer:

19.9 miles

Step-by-step explanation:

In this problem we have:

$d_1=1 mi$ is the distance travelled during the 1st day

$d_2=1.3 mi$ is the distance travelled during the 2nd day

$d_3=1.9 mi$ is the distance travelled during the 3rd day

$d_4=3.1 mi$ is the distance travelled during the 4th day

We notice that the difference between the distance travelled on the (n+1)-th day and the distance travelled on the n-th day doubles every day. In fact:

$d_2-d_1=0.3\\d_3-d_2=2\cdot 0.3 = 0.6\\d_4-d_3=2\cdot 0.6 = 1.2$

Which can be rewritten using the general formula:

$d_{n+1}-d_n=2(d_n-d_{n-1})$

This means that

$d_{n+1}=d_n+2(d_n-d_{n-1})$

By applying this formula recursively, we can find the 7th term, which is the distance travelled on the 7th day:

$d_1=1\\d_2=1.3\\d_3=1.9\\d_4=3.1\\d_5=3.1+2\cdot 1.2=5.5\\d_6=5.5+2\cdot 2.4=10.3\\d_7=10.3+2\cdot 4.8=19.9 mi$

So, the distance travelled on the 7th day is 19.9 miles.

7 0

4 years ago

Jackson will buy the items listed below. He has $422.76 in his checking account. He had a stored-valued card worth $75. He withd

Inessa05 [86]

Answer:

Step-by-step explanation:

44.99+299.49 = $344.38

$344.38 - store card ($75) = $269.48

422.76 - 269.48 - 2.5 = $150.78

Therefore answer is A

6 0

3 years ago

PLEASE HELP I NEED TO FINISH THIS IN 5 MINUTESSSS!!!!!!!

NeTakaya

Answer:

1 solution

Step-by-step explanation:

5 0

3 years ago

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