Answer:
The y-intercept is (0,-2)
Step-by-step explanation:
we know that
The <u><em>x-intercept</em></u> is the value of x when the value of y is equal to zero
The <u><em>y-intercept</em></u> is the value of y when the value of x is equal to zero
In this problem we have that
The graph crosses the x axis at negative 10 and crosses the y axis at negative 2.
therefore
The x-intercept is the point (-10,0) and the y-intercept is the point (0,-2)
Answer:
28
Step-by-step explanation:
If 50% of students are boys that means there are 30 boys and 30 girls. Then if 30% of boys are 10 and 60% of girls are 18. You add 18+10 and that gives you 28.
The total mass was 149.5 grams.
Setting up an equation, we have that the sample size, 39.1, is 5 3/4 (5.75) grams less than 3/10 of the total mass; this gives us
39.1 = 3/10x - 5.75
Adding 5.75 to both sides, we have
44.85 = 3/10x
Multiplying both sides by 10,
448.5 = 3x
Dividing both sides by 3,
149.5 = x