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bonufazy [111]
3 years ago
9

Dane started running at half past three in the afternoon. He stopped running at ten minutes after four. How long did Dane run?

Mathematics
2 answers:
Afina-wow [57]3 years ago
8 0
He ran 40 minutes because 3:30 and 4:10 so 30 +10 equals 40
Tatiana [17]3 years ago
4 0
He ran for 40 minutes!
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What is the answer to -5(6+9k)
anzhelika [568]

Answer: The answer is -30 - 45 k

Step-by-step explanation:

8 0
2 years ago
Given constraints: x is greater than or equal to 0, y greater than or equal to 0, 2x + 2y is greater than or equal to 4, x + y i
Alik [6]

Graph the inequalities given by the set of constraints. Find points where the boundary lines intersect to form a polygon. Substitute the coordinates of each point into the objective function and find the one that results in the largest value.




6 0
3 years ago
Read 2 more answers
Please help, see attachment for equation!
Alekssandra [29.7K]

Answer:

The answer to your question is the last option

Step-by-step explanation:

Quadratic equation

                                2 = - x + x² - 4

Order the equation from the highest power to the lowest power. Do not consider 2 because it is not consider in the options given.

                               x² - x - 4  = 0

Identify a, b and c

                              (1) x² -(1) x - 4 = 0

    a = 1    b = -1    c = - 6      

Substitution              

                              \frac{-(-1) +- \sqrt{(-1)^{2} - 4(1)((-4)}}{2(1)}

3 0
3 years ago
-11y = 6(2+1) - 13y
iris [78.8K]

Answer:

12

Step-by-step explanation:

Let's put the equations in standard form. For the first equation, we have:

−11y=6(z+1)-13y

2y−6z=6

y−3z=3

The second equation is:

4y−24=c(z−1)

4y−cz=24−c

If we multiply the first equation by 4, we get:

4y-12z=12

Comparing the two equations, we see that if c=12, both equations will be the same and there will be infinitely many solutions.

The correct value of c is 12.

7 0
2 years ago
x squared plus y squared equals 80. My daughter has to work out what x and y are. I have worked it out by trial and error, but k
olya-2409 [2.1K]


you Need to think of 2 square numbers that add up to make 80

answer:

64 + 16

this means that x  = 8 and y = 4

because of the square roots

or

y = 4

and

x = 8

7 0
3 years ago
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