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Rufina [12.5K]
3 years ago
14

1- Find the value of the two numbers if their sum is 12 and their difference is 4. You must use an algebraic expression to solve

.
2- The difference of two numbers is 3. Their sum is 13. Find the numbers. You must use an algebraic expression to solve.
Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
3 0
12-4=8 which means 12-8=4 which means now you have the difference of 4 and 8+4=12 which means now you have the sum of 12
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640, 160, 40, 10, ...
Pavlova-9 [17]
The function is y = 640/ 4^x and the graph decreases exponentially from 640 (for x =0) and asymptotically approacdhes zero (when x becomes larger and larger). This is an exponential decay.

Answer: the last option of the list. The graph will show exponential decay


4 0
3 years ago
Read 2 more answers
The position d of bicyclist (measured in kilometres) is a linear function of time t (measured in minutes). At time t= 5 minutes,
satela [25.4K]

Answer:

<h2>               21 km    </h2>

Step-by-step explanation:

If the bicyclist travels 7 km for every 5 minutes then it is directly proportional

5 min        7 km

15 min          x

x=\dfrac{15\cdot7}{5}=3\cdot7=21\,km

3 0
3 years ago
34) Which equation is equivalent to: 3r=78+14 ?
Julli [10]
It’s B. (Note: The image below isn’t mine but I can assure you it is B)

8 0
3 years ago
Please help me, 30 points and brainliest
ratelena [41]

Answer:

Im not sure, maybe around 5-6 minutes?

Step-by-step explanation:

7 0
3 years ago
Can anybody help me with this pls?
julia-pushkina [17]

Answer:

  d = 12

Step-by-step explanation:

In intercept form, the equation of the plane is ...

  x/a +y/b +z/c = 1 . . . . . for x, y, z intercepts a, b, c

You have (a, b, c) = (2, 3, 4), so the equation of the plane is ...

  x/2 +y/3 +z/4 = 1

Multiplying by 12 gets rid of the fractions and puts the equation in standard form:

  6a +4y +3z = 12

The value of d is 12.

8 0
2 years ago
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