All categories

3 years ago

She has 12 watermelons, 30 pears, and 42 apples

Mathematics

1 answer:

Step2247 [10]3 years ago

7 0

Six because all can be divided by six
12/6=2
30/6=5
42/6=7

You might be interested in

Rachel, Nancy, and Diego were in fishing competition. Rachel's fish was 7/8 foot long, Nancy's fish was 1/4 foot long, and Diego

Sidana [21]

It is 1/4 (.25), 1/2 (.5)and 7/8 (.875) from least to greatest

7 0

3 years ago

Find the answer to each word problem.

Alik [6]

Linda will both water & feed her plants on the same day on the 21st day.

5 0

3 years ago

Given the Venn diagram below, which statement must be false?

Alex_Xolod [135]

Some rational numbers are not integers. Is The False Option....

6 0

3 years ago

in a bag of keys there are 15 silver keys six black keys 11 copper keys and two painted keys of various colors. one key is drawn

Setler79 [48]

Answer:

The best thing to do here is to put each of these into fractions, with the total (31) as the denominator.

14/31= silver

6/31= black

8/31= copper

3/31= various colours.

As you're looking for the keys that are silver or copper, you've got to add the two denominators together, which gives you 14+8= 22.

This cannot be simplified further, therefore, the probability of choosing either a silver or copper key is 22/31.

Hope this answer helps you :)

Have a great day

Mark brainliest

7 0

3 years ago

The half-life of a certain radioactive element is 35 hours. If there are 904 grams of this element, how much will be left after

Cloud [144]

<h3>Answer: 226 grams</h3>

===========================================================

Explanation:

The half-life is 35 hours. This means every 35 hours, the amount of the substance is cut in half. If we started with 100 grams, then 35 hours later, we will have 50 grams. Then another 35 hours later we will then have 25 grams, and so on.

In this case, we start with 904 grams and follow this sequence:

904, 452, 226, 113, ...

Each term is cut in half. Going from term to term it takes 35 hours each. The third term 226 is the result of waiting two half-lives, which is 2*35 = 70 hours that have elapsed total.

--------------

If you want to use a formula, then it would be

$y = A*\left(\frac{1}{2}\right)^{x/H}$

where,

H = half-life duration (in this case, it is 35)

A = starting amount (which is 904 in this case)

x = amount of time that has elapsed (we will plug in x = 70)

y = final amount after x units of time has elapsed

note that x and H must have the same time unit. Both are in terms of hours in this case.

------------

So we will plug A = 904, x = 70, H = 35 into the formula to get...

$y = A*\left(\frac{1}{2}\right)^{x/H}\\\\y = 904*\left(\frac{1}{2}\right)^{70/35}\\\\y = 904*(0.5)^{2}\\\\y = 904*(0.25)\\\\y = 226\\\\$

We see that x = 70 leads to y = 226. This means after 70 hours, there is 226 grams of the material left.

4 0

3 years ago