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mojhsa [17]
3 years ago
6

At the ice cream shoppe,

Mathematics
1 answer:
motikmotik3 years ago
5 0

Answer:

  $2.59

Step-by-step explanation:

Let b and m represent the costs of a banana split and a milkshake, respectively. Then the two purchases are ...

  b +5m = 16.24

  3b +2m = 15.05

Subtracting the second equation from 3 times the first, we have ...

  3(b +5m) -(3b +2m) = 3(16.24) -(15.05)

  13m = 33.67 . . . . . . simplify

  m = 2.59 . . . . . . . . . divide by 13

The cost of a milkshake is $2.59.

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John walked 8 min 12 sec Kim walked 7 min 31 sec how many more sec does Kim walk
Masteriza [31]

Answer:

41 seconds

Step-by-step explanation:

5 0
3 years ago
Solve the problem by graphing <br> 4x-2y=22<br> 6x+9y=-3
butalik [34]
Change these equations into the equations of linear functions.
\left \{ {{4x-2y=22} \atop {6x+9y=-3}} \right. \\ \\&#10; \left \{ {{-2y=-4x+22} \atop {9y=-6x-3}} \right. \\ \\&#10; \left \{ {{y=2x-11} \atop {y=-\frac{2}{3}x-\frac{1}{3}}} \right.

Draw function graphs and read coordinates of the intersection.
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7 0
3 years ago
Find the missing value so that the two points have a slope of -3/10 (x,-8) and (-5,-5)
rosijanka [135]

Answer:

5

Step-by-step explanation:

The slope is given by

m = (y2-y1)/(x2-x1)

-3/10 = (-5--8)/(-5-x)

-3/10 = (-5+8)/(-5-x)

Using cross multiplication

-3 (-5-x) = 10*(-5+8)

Simplify

-3(-5-x) =10(3)

Divide by -3

-3/-3(-5-x) =10(3)/-3

-5-x = -10

Add 5 to each side

-5-x+5 = -10+5

-x=-5

Divide by -1

x=5

4 0
3 years ago
The difference between 3 times a number and 6
White raven [17]
3X - 6 = X + 9 is the answer
3 0
2 years ago
Read 2 more answers
Suppose a student carrying a flu virus returns to an isolated college campus of 2000 students. Determine a differential equation
ad-work [718]

Answer:

x(t) = 2000 - e^(-k*t)

Step-by-step explanation:

Interpretation:

No . infected student = x

Total student = 2000

rate of infected students = dx / dt

not-infected student = 200 - x

The general rate at which student are infected can be expressed as below:

dx / dt = k * ( 2000 - x )

To develop an expression of x(t) we integrate the above expression by separating variables:

dx / (2000 - x ) = k * dt

Now integrate:

\int\limits{\frac{1}{(2000-x)} } \, dx = k *  \int\limits{dt}\\\\- ln (2000-x) = k*t + C\\\\

@ t = 0 , infected students x = 0

Hence,

C = - ln (2000)

- ln (2000-x) = k*t + - ln (2000)\\\\ln (\frac{2000-x}{2000}) = -k*t\\\\ 2000 - x = e^(-kt)\\\\x(t) = 2000 - e ^ (-k*t)

6 0
3 years ago
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