Answer:
61
Step-by-step explanation:
Givens
Let the pizzas = x
Let the sodas = y
Equation
y = 3x + 2
<u>Part A</u>
y = 3*8 + 2
y = 24 + 2
y = 26
<u>Part B</u>
Sodas = 26* 1.25 = 32.50
Pizzas =9.50 * 3 = 28.50
Total for both = 32.50 + 28.50 = 61
Answer:
16.25%
=0.163 (correct to 3 decimal places)
Step-by-step explanation:
The child dependency ratio of a population is defined as the number of children (Under 15 years) divided by the working-age population (15–64 years old).

From the given table:
Population Under 15 years = 2600
Population of the working class (between 15-64) = 16000
Therefore:

=0.163 (correct to 3 decimal places)
Answer:
Given
no of Grade 6 students = 220
no of Grade 7 students = 40 more than grade 6 students
Step-by-step explanation:
boys Grade 7 students = no of Grade 6 students - 40 more than grade 6 students
boys Grade 7 students = 220 - 40
boys Grade 7 students = <u>180 grade 7 boy students are enrolled</u>
Therefore, 180 grade 7 boy students are enrolled.
Answer:
1.2n=0.45n+1.5
Step-by-step explanation:
the answer of 0.4 is 2/5 or 2 1/5