Answer:
$1,5
Step-by-step explanation:
total money spent - cost of magazine = money spent on candy bars
$11 - $5 = $6
money spent on candy bars divided by number of candy bars = price of one candy bar
$6 / 4 = $1,5
Answer:
<h3>13 years</h3>
Step-by-step explanation:
Let the present age of Alicia be x
Let the present age of her brother be y
Three years ago;
Alicia age = x - 3
Her brother's age = y - 3
If three years ago Alicia was twice as old as her brother Carlos, then;
X - 3 = 2(Y-3)
x-3 = 2y - 6
x = 2y - 3 ...1
In two years time;
Alicias age = x+2
Her brother's age = y +2
If in two more years Alicia will be just 50% older than Carlos, then;
x+2 = y + 2 + (0.5(y+2))
x+2 = y+2 + 0.5y + 1
x+2 = 1.5y+3
x = 1.5y + 1 ...2
Equating 1 and 2;
2y - 3 = 1.5y + 1
2y - 1.5y = 1+3
0.5y = 4
y = 4/0.5
y = 8
Since x = 2y-3
x = 2(8) - 3
x = 16-3
x = 13
Hence Alicia will be 13 years old today
The solution to the two functions is (1, 3) and it represents the temperature at which the number of people visiting the zoo equals the number of people leaving the zoo.
Answer: 6.92 m
Step-by-step explanation:
Assuming the image is the attached below, we have a right triangle, where one of the legs is the 4 m high pole and the other leg the shadow.
Now, the tangent function is defined as:
Since the Sun is at an angle and the adjacent leg is the shadow we have:
Isolating :
This is the length of the shadow
Answer:
The answer to your question is
Step-by-step explanation:
Here, there is a difference of squares, so just solve it and simplify
Multiply the binomials
= 1 -
Simplify
=
=