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trapecia [35]
3 years ago
6

How do you solve this?

Mathematics
2 answers:
ohaa [14]3 years ago
7 0
-7x -7y = 21
Y = 6

Since they are giving you the value of 6 you just plug it in the equation

-7x - 7(6) = 21
-7x - 42 = 21
+ 42. +42

-7x = 63
/-7. /-7

X = -9
sesenic [268]3 years ago
4 0
-7x-7y=21
Y=6
-7x-7×6=21
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7 0
3 years ago
PLEASE HELP
Eva8 [605]

Answer: 51 Children and 36 Adults.

Step-by-step explanation: Let's call x the number of children admitted and call z the number of adults admitted.

We know that x+z= 87

We also know that 3.25x+3.5z= 291.75.

We want to find the value of x and z. Then we solve the system of equations:

Multiply the first equation by -3.5 and add it to the second equation:

-3.5x-3.5z= -304.5

3.25x+3.5z= 291.75

-----------------------------------------------------------------------------------------------------------------

-0.25x=-12.75

x= -42.75 ÷ -0.25

x=51

----------------------------------------------------------------------------------------------------------------

Now we substitute the value of x in the first equation and solve for the variable z

51+z=87

z=87-51

z= 36

Omg took me like 10 minutes to calculate would appreciate brainliest. Have a wonderful day.

6 0
3 years ago
Elise, Jake, Malik, and Xiao each found a solution to the same inequality. Which solution is correct?
grandymaker [24]
The absolute value function f(x)=|ax| takes values from 0 (included) to + infinity. 

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