Do you need for both or just one?
answer 33
because i had abd and ur mum jk but yea
If b = the number of boys, which alg expression represents the phrase. The sum of the number of boys and 15 girls is b+15.
Always solve equations for such questions using the information provided in the question. Then, as stated in the solution, we may locate the two unknown variables using the two equations that were created.
This kind of question can be answered by assuming any two numbers, x and y, and then applying the condition specified in the question. We know quite well that any equation that can be written in the form ax+by+c=0, where a, b, and c are real integers, and a and b are not zero, is known as a linear equation in two variables. When we apply the condition, we obtain two linear equations with two variables.
Given that the number of boys is b,
Number of girl = 15 girls
Thus the sum of noys and girls is b+15.
To learn more about algebraic equation visit link:
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Yo sup??
x+y=4 -----1
x-y=6 ----2
adding equation 1 and 2 we get
2x=10
x=5
from equation 1 we get
5+y=4
y=-1
Since a definite value of x and y exists therefore the set of equations are consistent.
Hope this helps.
To find how long it would take, you must divide the total amount of gallons of water in the pond by the amount of gallons drained per hour. This would translate to:
4290 ÷ 78
Which would give you the total amount of hours needed to completely drain the pool, aka the answer:
4290 ÷ 78 = 55
