B + g = 42
b = 2/5g
2/5g + g = 42
2/5g + 5/5g = 42
7/5g = 42
g = 42 / (7/5)
g = 42 * 5/7
g = 210/7
g = 30 <== there are 30 girls
b = 2/5g
b = 2/5(30)
b = 60/5
b = 12 <=== there are 12 boys
Hello!
A proportional relationship means the line passes through the origin (0,0) and shows a constant rate of change.
Your answers appear to be correct. Good job! :)
Answer: The answer should be B
Answer:
The length of the ladder is 50.8 ft
Step-by-step explanation:
we are given
the angle of elevation of the ladder is 74° when the bottom of the ladder is 14 feet from the side of the house
So, firstly, we will draw diagram
we can see that
angle =74
base length =14
we have to find hypotenuse
so, we can use trig formula
now, we can solve for L
we get
So,
The length of the ladder is 50.8 ft
Answer:
The correct options are;
A. 1·2 = 2
B. 1·1 = 1
E. 1 + 1 = 2
Step-by-step explanation:
Given that the equations 1.2 = 2 and 1.1 = 1 are correctly written as 1·2 = 2 and 1·1 = 2, we have;
The product of any number and one is equal the same number, that is a × 1 = a
Whereby we have the expression 1·2 which is 1 × 2, we therefore have;
1 × 2 = 1 · 2= 2
B. Similarly we have;
1 · 1 = 1 × 1 = 1
Also, 1 + 1 = 2 is correct as the sum of two numbers is equal to the sum of the count of the numbers, therefore;
E. 1 + 1 = 2 is correct.