We know that the area of a rectangle is equal to the width multiplied by the length. So in this case the algebraic expression is (x+5)*(3x+10). You get 3x^2 +10x +15x +50= 3x^2 +25x +50.
Greater than 6 it’s labeled as 1 through 6 a fair dice has a probability of 16
Answer:
$388.50
Step-by-step explanation:
42 tins
$9.25/tin

So, they raised $388.50
Answer:
57 children
54 adults
Step-by-step explanation:
Let's call x the number of children admitted and call z the number of adults admitted.
Then we know that:

We also know that:

We want to find the value of x and z. Then we solve the system of equations:
-Multiplay the first equation by -4 and add it to the second equation:


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



Lst question: x = 5, y = 7
2nd question: x = -1, y = 5
3rd question: x = 98, y = 80