All categories

3 years ago

Which is less, 3 or 30? Explain how you know

Mathematics

2 answers:

r-ruslan [8.4K]3 years ago

7 0

Answer:

Step-by-step explanation:

3 is closer to 0

Mamont248 [21]3 years ago

4 0

Answer:

3 because u need to add/multiply to get 30

Step-by-step explanation:

You might be interested in

How does rewriting the mixed numbers as whole numbers and fractions make it easier to multiply?

bixtya [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

8/f = 56/105 what is f?

svetlana [45]

8/15 = 56/105

This may be solved using proportion.
a/b = c/d
ad = bc where cross products are equal.

a = 8
b = f
c = 56
d = 105

ad = bc
8*105 = f*56
840 = 56f
840/56 = 56f/56
f = 15

56 ÷ 7 = 8
105 ÷ 7 = 15

6 0

3 years ago

Read 2 more answers

How to write 3,000,000+600,000+80,000+10 in written form

zavuch27 [327]

Written form is just how you would usually see a number. So it would be 3,680,010.

6 0

3 years ago

Read 2 more answers

What is the square root of 16?

natulia [17]

square root of 16 would be 4

4 x 4 = 16

8 0

3 years ago

Read 2 more answers

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