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Ray Of Light [21]
3 years ago
11

Donnell practiced the piano 3 hours longer than Marcus.

Mathematics
1 answer:
emmasim [6.3K]3 years ago
5 0
Donnell practiced 7 hours while Marcus practiced 4 hours.
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A box office sold 147,523 tickets for an auto race.
Marysya12 [62]

Answer:

78,799 children's tickets

Step-by-step explanation:

147,523 total tickets, 68,724 adult tickets

Subtract to find amount of children's tickets:

147,523-68,724 = 78,799

5 0
3 years ago
Which function has a domain of (-∞, ∞) and a range of (-3, ∞)?
shtirl [24]

Answer:

Step-by-step explanation:

The function that will have the domain (\infty, \infty) and a range of (-3, \infty) is the

function in option d.) f(x) = e^x - 3

5 0
3 years ago
I need help I don’t understand :(
sveticcg [70]

Answer:

.

Step-by-step explanation:

7 0
3 years ago
Solve system of equations for x + y: -4x + 9y = -11 & -3x + 7y =-9
Aloiza [94]

Answer:

x = -3   and   y = -4

x + y = -3-4 = -7

Step-by-step explanation:

-4x + 9y = -11 ------------------------------------------------------------------------(1)

-3x + 7y = -9--------------------------------------------------------------------------(2)

multiply through  equation (1) by 3   and multiply through equation(2) by 4

-12x + 27y = -33 -----------------------------------------------------------------------(3)

-12x + 28y   = -36 ----------------------------------------------------------------------(4)

subtract equation (1) from equation (2)

y = -3

substitute y = -3 into equation (2)

-3x + 7(-3) = -9

-3x -21 = -9

add 21 to both-side of the equation

-3x -21 + 21 = -9 + 21

-3x = 12

divide both-side of the equation by -3

-3x/-3 = 12/-3

x = -4

x = -3   and   y = -4

8 0
3 years ago
Idk how to do it i need the answer plsss
Irina18 [472]
It rose 29 degrees in that time frame
8 0
3 years ago
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