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forsale [732]
2 years ago
15

Ryan buys some jumpers to sell on a stall.

Mathematics
1 answer:
Gemiola [76]2 years ago
8 0

Answer:

£160

Step-by-step explanation:

£140÷60=£2.33

60×40%=24

£8×24=£192

60-24=36

36÷2=18

18÷2=9

9×£8=£72

9×(£8÷2)=£36

£192+£72+£36=£300

£300-£140=£160

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In the theory of learning, the rate at which a subject is memorized is assumed to be proportional to the amount that is left to
babymother [125]

Answer:

dA/dt = k1(M-A) - k2(A)

Step-by-step explanation:

If M denote the total amount of the subject and A is the amount memorized, the amount that is left to be memorized is (M-A)

Then, we can write the sentence "the rate at which a subject is memorized is assumed to be proportional to the amount that is left to be memorized" as:

Rate Memorized = k1(M-A)

Where k1 is the constant of proportionality for the rate at which material is memorized.

At the same way, we can write the sentence: "the rate at which material is forgotten is proportional to the amount memorized" as:

Rate forgotten = k2(A)

Where k2 is the constant of proportionality for the rate at which material is forgotten.

Finally, the differential equation for the amount A(t) is equal to:

dA/dt = Rate Memorized - Rate Forgotten

dA/dt = k1(M-A)  - k2(A)

7 0
3 years ago
Two similar solid shapes a and b are shown, the solids are made from the same matierial the surface area of b is 40.32cm^2 and a
Kisachek [45]

Answer:

4000g

Step-by-step explanation:

7 0
2 years ago
Juan starts a new coffee shop. The table shows the coffee sales at his shop for the first 5 days. What is the average rate of ch
vodomira [7]

Answer:

Average rate of change from day 2 to day 5 is $43.33/day.

Step-by-step explanation:

Sales on day 2 = 200

Sales on day 5 = 330

Rate of change = \frac{330-200}{5-2} =\frac{130}{3}=43.33

3 0
2 years ago
Which ratio is equivalent to 8/6? <br><br> A. 3/24<br> B. 24/32<br> C. 32/24<br> D. 24/3
Maru [420]

Answer:

C.

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Mario is making dinner for 9 people.Mario buys 8 containers of soup.Each container is 18 oz if everyone gets the same amount of
Firdavs [7]

Answer:

16 fluid ounces

Step-by-step explanation:

Mario buys 8 containers of soup.

Each container has 18 fluid ounces.

In other words, there are a total of:

8\times 18=144

144 fluid ounces.

Each of the 9 people got the same amount of soup. In other words, divided equally, each person got:

144/9=16

16 fluid ounces of soup.

And we're done!

4 0
2 years ago
Read 2 more answers
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