Answer:
Let Craigs age = x
Therefore Dianes age = 25 + x ( since she's 25 years older)
Dianes + Craigs age = (25 + x) + x = 105 (They said both of their ages sums up to 105)
25 + 2x = 105
2x = 80
x = 40
Craigs age is 40 years old.
Dianes age is 65 years old.
For this case, what we are going to do is use the following property:
Multiply an equation by a scalar.
In this case, the scalar will be:
k = -2
We have then that equation 2 will be:
k * (4x + y) = k * 1
-2 * (4x + y) = - 2 * 1
-8x-2y = -2
Answer:
The property that justifies this manipulation is:
Multiply an equation by a scalar.
Answer:
concentration = 8/84 + 8 = 0.8696
Step-by-step explanation:
Answer:
4%
Step-by-step explanation:
The unemployment rate is calculated by dividing the number of unemployed(2 million) by the labor force (50million) and multiplying the result by 100.
Labor force is the total number of unemployed and employed persons in a country. In this case, we have:
Labor force= No. of unemployed (in million) + No. of full time employed (in million) + No. of part time employed (in million) = 2 + 38 + 10 = 50 million
Unemployment rate= 2/50 × 100 = 4%
Therefore, the rate of unemployment is 4%.
Answer:
7.5
Step-by-step explanation:
Multiply the number by the percent,Divide the answer by 100 and Round to the desired precision to the nearest whole number.
