All categories

3 years ago

Hi I need helo that is not the best

Mathematics

2 answers:

alex41 [277]3 years ago

6 0

Answer:

Did you mean help?

Step-by-step explanation:

Vera_Pavlovna [14]3 years ago

3 0

Are u trying to spell hello

You might be interested in

Betsy has ten and one half ounces of gold and and uses four fifths of it to make earrings. How much gold does she use to make th

andrew11 [14]

Answer:

Betsy uses $8\frac{4}{10}$ gold to make the earrings

Step-by-step explanation:

Given:

Amount of gold with Betsy = ten and one half ounces

Amount of gold Betsy used to make earrings = four fifths

To Find:

How much gold is used by Betsy to make earrings = ?

Solution:

Let the quantity of gold used by Betsy to make earring be X

Then

X = four fifths of ten and one half

X = $\frac{4}{5} of 10 \frac{1}{2}$

X = $\frac{4}{5} \times \frac{20 + 1}{2}$

X = $\frac{4}{5} \times \frac{21}{2}$

X= $\frac{84}{10}$

Reducing the fraction to lower terms and converting into mixed fraction we get,

X= $8\frac{4}{10}$

6 0

4 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

How do you write 18.9 in scientific notation?

vesna_86 [32]

Answer:

1.89*10^1

Step-by-step explanation:

move the decimal once to the left

8 0

4 years ago

Read 2 more answers

Someone please i need help on my geometry homework !!!!

saveliy_v [14]

Answer:

x= 9

Step-by-step explanation:

13x+2+3x-4+5x-7=180

21x-9=180

21x=189

x=9

3 0

3 years ago

I have four nubers and im trying to find the median

Bogdan [553]

Answer:

okay what are the numbers

Step-by-step explanation:

7 0

2 years ago