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vagabundo [1.1K]
3 years ago
11

Give a real-life situation for the sum -15 + 10

Mathematics
1 answer:
Andrei [34K]3 years ago
4 0
Jeff is 15 years younger than Joe who is 10
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What are the values of the regrouped amounts in the multiplication 435 times 17
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5 0
3 years ago
Sam and bethan share £54 in the ration 5:4
Margarita [4]

Answer:

<h2>Let the common ratio b x thus the part becomes</h2><h2>=5x and 4x respectively</h2>

<h2>Thus,ATQ</h2>

<h2>5x+4x= 54</h2>

<h2>9x=54</h2>

<h2>x= 6</h2>

<h2>Sam will get is £30 (putting the value of x)</h2><h2>and Bethan will get £24</h2>
3 0
3 years ago
Answer Please! I hate khan academy lol​
Zanzabum

Answer:

C; None of the above.

Step-by-step explanation:

Pretend x=1, y=0, and z=2.

You have to match an answer to 1+0-2 (equals to -1).

The first equation would be 2+0+1. When you add them all together you get 3, and that isn't equivalent to -1, so therefore this one is not the answer.

The second equation becomes 1+2+0, and when you solve for the answer, you see that the answer is also 3, and so we can conclude that neither A or B matches with the equation above, so the answer is C, None of the above.

6 0
3 years ago
The decay of 192 mg of an isotope is given by A(t)= 192e-0.015t, where t is time in years. Find the amount left after 55 years.R
finlep [7]
This is a typical radioactive decay problem which uses the general form:

A = A0e^(-kt)

So, in the given equation, A0 = 192 and k = 0.015. We are to find the amount of substance left after t = 55 years. That would be represented by A. The solution is as follows:

A = 192e^(-0.015*55)
<em>A = 84 mg</em>
6 0
3 years ago
A jog runs at a speed of 4m/s for 10 minutes. Work out the distance travelled.
krok68 [10]

Answer:

2,400 meters

Step-by-step explanation:

4 × 60 sec = 240 meters a minutes

240 meters × 10 minutes = 2,400 meters in 10 minutes

7 0
4 years ago
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