The math team has 11 boys 10 girls and 1 coach. What is the ratio of coach to students?
2 answers:
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Answer:
(x, y ) = ( ,
)
Step-by-step explanation:
given the 2 equations
4x + 2y = 7 → (1)
y = 5x → (2)
Substitute y = 5x into equation (1)
4x + 2(5x) = 7
4x + 10x = 7
14x = 7 ( divide both sides by 14 )
x = =
substitute this value into equation (2)
y = 5 × =
Answer: There are 12 pairs of tennis shoes.
Step-by-step explanation:
Since we have given that
For each pair of tennis shoes , she owns 4 pairs of flip flops,
so their ratio will be 1:4
Let the number of tennis shoes be x
Let the number of flip flops be 4x
According to question,
4x-x=9
3x=9
x=\frac{9}{3}
x=3
So, the number of pairs of tennis shoes is given by
Hence, there are 12 pairs of tennis shoes.
The solution of given inequality is:
<em><u>Solution:</u></em>
<em><u>Given inequality is:</u></em>
We have to find the value of "x"
<em><u>Let us solve the given inequality</u></em>
Divide both sides of inequality by 7
<em><u>Simplify the above expression</u></em>
Thus the value of x is