Martha's total earnings is the sum of her fixed pay pay day and the extra she gains based on the number of toys she sold. Her total earnings may be expressed as,
44 + 2n
Since she desires to earn $80 or more, the inequality is expressed as
44 + 2n ≥ 80
Solving for n from the inequality,
n ≥18
Thus, the answer is the first choice.
The piecewise function tells us specific rules he should execute based on the input x we put in. For example for answer A is true since we use the top function f(x) = -x + 1 since the input is -1 which is less than 0 (x < 0). We check to make sure the equation comes out true:
f(-1) = -(-1) + 1
f(-1) = 2 ✓
The numbers are "x" and "y",
we suggest this system of equations.
x+y=24
x-y=15
solve by reduction method.
x+y=24
x-y=15
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2x=39 ⇒x=39/2=19.5
x+y=24
-(x-y=15)
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2y=9 ⇒y=9/2=4.5
The numbers are 19.5 and 4.5
To check
19.5+4.5=24
19.5-4.5=15
Answer:
Step-by-step explanation:
Cost of two tickets = 2 * 30 = £60
Let the amount with Puvi = £x
Money spent on dinner = (1/3)*x
Total money - money spent on dinner - money spent on dessert = 60
Money that Puvi had at the start of the night = £ 240
