Answer:
we need an image in order to answer the question
60 first 20 second 15 third 10 fourth nothing fifth
Answer:
15
Step-by-step explanation:
cost of 20 mobile set=300
cost of 1 mobile set
<em>=</em><em>cost </em><em>of </em><em>mobile </em><em>set/</em><em>number </em><em>of </em><em>mobile </em><em>set</em>
<em>=</em><em>3</em><em>0</em><em>0</em><em>/</em><em>2</em><em>0</em>
<em>=</em><em>1</em><em>5</em>
Factor the following:
12 x^4 - 42 x^3 - 90 x^2
Factor 6 x^2 out of 12 x^4 - 42 x^3 - 90 x^2:
6 x^2 (2 x^2 - 7 x - 15)
Factor the quadratic 2 x^2 - 7 x - 15. The coefficient of x^2 is 2 and the constant term is -15. The product of 2 and -15 is -30. The factors of -30 which sum to -7 are 3 and -10. So 2 x^2 - 7 x - 15 = 2 x^2 - 10 x + 3 x - 15 = x (2 x + 3) - 5 (2 x + 3):
6 x^2 x (2 x + 3) - 5 (2 x + 3)
Factor 2 x + 3 from x (2 x + 3) - 5 (2 x + 3):
Answer: 6 x^2 (2 x + 3) (x - 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.
