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Lerok [7]
3 years ago
9

4+4=?5+5+?6+6=?Hi, Can you solve these questions for fun?

Mathematics
1 answer:
andrew-mc [135]3 years ago
8 0

Answer:

  1. 4 + 4 = 8
  2. 5 + 5 = 10
  3. 6 + 6 = 12

Step-by-step explanation:

The expressions can be solved as follows:

  1. 4 + 4 = 8
  2. 5 + 5 = 10
  3. 6 + 6 = 12

Thus, the sum of 4 and 4 is 8.

The sum of 5 and 5 is 10.

And the sum of 6 and 6 is 12.

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What is the answer for this math?​
Westkost [7]

Answer:

x=-4.992 and x=-0.434

Step-by-step explanation:

we have    

\frac{\sqrt{3x+15}}{5}=2^{x}

we can divide the equation above into two equations

so

y=\frac{\sqrt{3x+15}}{5} ----> equation A

y=2^{x} ----> equation B

Solve by graphing

The solutions of the system are the x-coordinates of the intersection points both graphs

using a graphing tool

The solutions are x=-4.992 and x=-0.434

see the attached figure

6 0
4 years ago
Sarah too advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of 8
FromTheMoon [43]

Answer:

<em>y = 8</em>

Step-by-step explanation:

330x + 1220y = 12730    (cost of coach tickets plus cost of first class tickets is total budget)

x + y = 17    (number of coach tickets plus number of first class tickets is total number of people)

Solve the second equation for y to get y = 17 - x, then plug that into the first equation and solve for x:

330x + 1220(17 - x) = 12730

330x + 20740 - 1220x = 12730

-890x + 20740 = 12730

-890x = -8010

x = 9

Sarah bought x = 9 coach tickets. Plug that into the second equation and solve for y:

9 + y = 17

y = 8

Sarah bought y = 8 first class tickets.

5 0
3 years ago
Multiply and simplify the following complex numbers:<br> (5 – 5i) . (-3+5i)
Rama09 [41]

Step-by-step explanation:

(5 – 5i) . (-3+5i)

=-15+25i+15i-25i²

=-25i²40i-15

7 0
3 years ago
Read 2 more answers
elijah bought a total of 16 pounds of peanuts and cashews and pain $49.50. If peanuts cost $2.75 per pound and cashews nuts cost
Orlov [11]

Answer:

The answer to your question is  He bought 11 pounds of cashew.

Step-by-step explanation:

Data

Total pounds = 16

peanuts = p = $2.75

cashew = c = $3.25

total cost = $49.5

Process

1.- Write two equations to solve this problem

                  p  +  c = 16                    Equation 1

           2.75p + 3.25c = 49.50        Equation 2

Solve the system by substitution

2.- Solve equation 1 for p

                  p = 16 - c

Substitute p in equation 2

           2.75(16 - c) + 3.25c = 49.5

Expand

            44 - 2.75c + 3.25c = 49.5

Solve for c

             3.25c - 2.75c = 49.5 - 44

                         0.5c = 5.5

                               c = 5.5/0.5

                               c = 11

3.- Find p

                 p = 16 - 11

                 p = 5 pounds

4.- Conclusion

Ellijah bought 11 pounds of cashew and 5 pounds of peanuts                        

5 0
3 years ago
How do you write 50,679 in expanded form
Alika [10]

Answer: 50,000 + 600 + 70 + 9, or, which is equivalent, 5×10,000 + 6×100 + 7×10 + 9; either is considered in expanded form.

Explanation:

The expanded form of a number is the same number written as the sum of each digit according to its place value.

I will explain you in detail using your number: 50,679.

i) The digit 5 is in the then thousands place, the 0 is in the thousands place, the 6 is in the hundreds place, the 7 is in the tens place, and the 9 is in the ones place.

ii) So:

5 represents 50,000, or 5 ×10,000;

6 represents 600, or 6×100;

7 represents 70, or 7×10; and

9 represents 9, or 9×1.

ii) Then, the expanded form is the representation of the number as the sum of those values, which is:

50,000 + 600 + 70 + 9, or

5×10,000 + 6×100 + 7×10 + 9×1.

3 0
3 years ago
Read 2 more answers
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