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2 years ago

I NEED THIS RIGHT NOW ASAP PLEASE

Mathematics

2 answers:

jek_recluse [69]2 years ago

4 0

1:4

As written in the problem the ratio would be 5:20, and 5 divided by 5 is 1, 20 divided by 5 is 4 therefore the ratio from pen to pencils is 1:4.

nevsk [136]2 years ago

3 0

Answer:

1:4

Step-by-step explanation:

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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

3 years ago

Math! Need help will give brainliest if CORRECT

SOVA2 [1]

Hey there! I'm happy to help!

So we want to see which of these have the greatest value. Since these are all negative numbers, we want the one that is closest to zero.

So, we know that -1000 is going to furthest from 0. -10 will be further than -8 since it is a larger negative number, so it will be more negative than -8.

-1/2 is just barely negative, so it is going to be closer to -0 than -8, so the correct answer is C. -1/2.

Have a wonderful day and keep on learning! :D

3 0

2 years ago

Read 2 more answers

there are 5 people at a party. each person must shake hands once with every other person at the party. how many handshakes does

Viefleur [7K]

Here's why:

Say the 5 people are A, B, C, D, E 

A shakes hands w/ B C D E 
B shakes w/ C D E 
C with D E 
D with E 

That's 10

3 0

2 years ago

Simplify the following expressions 1/4 (24-16x) what is the sum? 7/4 + (-1/5)

Artyom0805 [142]

1.55 i did that math too it was kinda hard but i did it

4 0

2 years ago

SOMEONE PLEASE HELP ME IM STRESSED OUT I’ll GIVE OUT BRAINLIEST PLEASE DON’T ANSWER IF YOU DON’T KNOW

evablogger [386]

Answer:

Number 7: 40%

Number 8: 75%

Step-by-step explanation: Hope i helped mate

4 0

2 years ago