Answer: there are 5 more girls than boys.
Step-by-step explanation:
The ratio of boys to girls in a classroom is 5:6. The total ratio is the sum of the proportion. It becomes 5 + 6 = 11
If there are 55 students in total, it means that the number of boys in the class is
5/11 × 55 = 25 boys
Also, the number of girls in the class is
6/11 × 55 = 30 girls
Therefore, the difference between the number of girls and boys in the class is
30 - 25 = 5 girls
Answer:
110 fence posts
Step-by-step explanation:
102÷6=17
multiply by 2 = 34
330÷6=55
multiply by 2=110
add together= 144 fence posts
Answer:
16/25
Step-by-step explanation:
Given
Number of green marbles = 9
Number of White marbles = 17
Total number of marbles = 26
Probability of picking a white marble = 17/26
When a white marble is picked without replacement,
Probability of picking another white marble after first picking a white marble
= 16/25
= 0.64
This is because the total number of marbles would have reduced from 26 to 25 and the number of white marbles from 17 to 16.
Answer:
y = -3x
Explanation:
k = -3
y ¤ x......where ¤ represents the Greek alpha sign
y = k • x
y = -3 • x
y = -3x
Answer:
Step-by-step explanation:
<u>We know that:</u>
- Some squares are 100% shaded, and some are half shaded.
- Half shaded squares: 10 squares
- 100% shaded: 20 squares
- Area of figure = Area of half shaded + Area of 100% shaded
<u>Solution:</u>
- Area of figure = Area of half shaded + Area of 100% shaded
- => Area of figure = (10 x 1/2) + 20
- => Area of figure = 5 + 20
- => Area of figure = 25 units²
Hence, the area of the figure is 25 units².
