Answer:
$291.60
Step-by-step explanation:
First figure out the percentage increase
270 - 250 = 20. This was the increase
Percentage increase = 20 / 250 x 100
= 8%
8% = 0.08
Money next month = 270 x 1.08 = $291.60
Our missing number we are solving for is X.
We are told x will equal 2x (number doubled) plus -16.
x = 2x + -16 We want to move the smaller variable to the right to sit with the larger one and move the -16 to the left by subtracting it from both sides. Remember that subtracting a negative is the same as adding it. So essentially we add 16 to both sides.
16 = 2x - x Combine the variables
16 = x or x = 16
I chose to put the variable on the left in this problem to avoid having a -x on the left side. It doesn't matter which side the variable is on to solve, but when you state it - we usually say x = 16.
B. -3 and 5
constants are the numbers without variables (the letters) and coefficients are the numbers with variables
Answer:
f(x) = -18
Step-by-step explanation:
f(x) = 3x - 6
f(-4) = 3(-4) - 6
f(-4) = -12 -6
= -18
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Answer:
B : Length is 12, Width is 9
D: Area is 108
Step-by-step explanation:
Finding x:
Since the Perimeter is 42, subtract 14 from 42 to get 28. Then divide that by 4 to get 7. x = 7. Since x = 7 then 7 + 5 = 12. So the length is 12.
Figuring out the width:
When we find the perimeter we add all the sides, so 12 + 12 = 24 and 42 - 24 = 18. Divide 18 by 2 to get 9 and then add 12 + 12 + 9 + 9 just to check your answer
Since the you know the legnht and width, you now have to multiply them to fine the area. 12 x 9 = 108
