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Ghella [55]
3 years ago
8

What is the value of 4x-1/2y-12 when x=5 and y=20

Mathematics
1 answer:
Iteru [2.4K]3 years ago
7 0

Answer:

the answer is -2

Step-by-step explanation:

Since x=5 and y=20, plug those values into the correct variables in the equation of 4x-1/2y-12.

When we do that it brings us to:

4(5)-1/2(20)-12

Then we just simplify:

20-10-12

Simplify again:

10-12

So 10-12 is -2, therefore -2 is the answer

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For the last basketball game, 381 tickets were sold. Adult tickets sold for $7, and student tickets sold for $3. How many adult
vovikov84 [41]

Answer: 96 adult tickets were sold.

Step-by-step explanation:

Let x represent the number of adult tickets that were sold.

Let y represent the number of students tickets that were sold.

For the last basketball game, 381 tickets were sold. This means that

x + y = 381

Adult tickets sold for $7, and student tickets sold for $3. If the ticket sales totaled 1,527, it means that

7x + 3y = 1527 - - - - - - - - - - - -1

Substituting x = 381 - y into equation 1, it becomes

7(381 - y) + 3y = 1527

2667 - 7y + 3y = 1527

- 7y + 3y = 1527 - 2667

- 4y = - 1140

y = - 1140/- 4

y = 285

x = 381 - y = 381 - 285

x = 96

4 0
3 years ago
May you please help me with Highschool Ap Calculus.​
nadya68 [22]

Answer:

dy/dx = x=-1

Step-by-step explanation:

by use of intergration to get the values of yaxis and x axis,,the values are -2, -4,

5 0
2 years ago
A water balloon is thrown out of a window 96 feet above the ground. The balloon is traveling downward at 16 feet per second init
gulaghasi [49]
It hits the ground at h=0

0=-16t^2-16t+96
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0=-16(t^2+t-6)
factor
0=-16(t-2)(t+3)
set to zero
0=t-2
2=t

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at t=2, or 2 seconds
7 0
3 years ago
Read 2 more answers
Please anyone help me
sineoko [7]
Hey There!!!!


The Answer Is > 240 x 3 = 720 so 720 is your answer!!


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6 0
3 years ago
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Find the area and the circumference of a circle with radius 6 m.
Ratling [72]

Answer:

(a) 113.04m²

(b) 37.68m

Step-by-step explanation:

(a)

Area = πr²

=π(6)²

=36π

=113.04m²

(b)

Circumference = 2πr

2π(6) = 12π

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6 0
3 years ago
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