if x is the bigger num and y is the smaller
x + y = 91
x - 3y = 7.7
multiply by -1
x+y = 91
-x + 3y = -7.7
add the equations
4y = 91 - 7.7
4y = 83.3
y = 20.825
then x+y = 91 use to find x
x+20.825 = 91
x = 70.175
the two numbers are 70.175 and 20.825
7 + 10x < 100. the variable x represents the number of cd's she can buy.
<h2>Answer: 300 people can ride in 2 hours. The rate is 150 people per hour.
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</h2><h2></h2><h2>Step-by-step explanation: You could first find out how many people can ride in an hr by multiplication. We know 50 people can ride in 20 minutes.
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</h2><h2>So, 50 x 3 = 150 people can ride in 1 hr (because there are 3, 20-minute increments in 1 hr)
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</h2><h2>150 x 2 = 300
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</h2><h2>300 people can ride in 2 hours. The rate is 150 people per hour.
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You know m=3
so you can substitute that into your expression "4+5m"
4+5m
4+5 x 3
using pemdas
4+15
19
4+5m=19 if m=3
No, it is not the compliment.
If you have two complimentary events, they account for all possible outcomes of a situation. With these two events, we don't account for having exactly 2 children that are boys.
