Answer:
No. of boys = 15
Step-by-step explanation:
Given that,
The ratio of boys to student is 3:7.
Number of girls in the school = 20
We need to find the number of boys in the school.
Let there are 3x boys and 7x number of students.
No. of girls = Total students - no. of boys
= 7x-3x
= 4x
ATQ,
4x = 20
x = 5
No. of boys = 3x
= 3(5)
= 15
Hence, there are 15 boys in the school.
Answer:
95.50$
Step-by-step explanation:
398 / 4 = 95.50
Answer:
y = 4.5x
Step-by-step explanation:
y=ax is form of proportional relationship
checking the first pair of numbers:
checking other lines
So the equation is:
Answer:
(-2,-1)
Step-by-step explanation:
K: 21.038
21.038 ÷ <span>π (3.14) = 6.7</span>
