MATHEMATICS COLLEGE

There are 25 coins inside a container. Some of the coins are nickels, and the rest are quarters. The value of the coins is $4.05. Let n represent the number of nickels and q be for the number of quarters. What equation represents this problem?

Answers

Answer 1

Answer:

Answer:

n + q = 25
0.05n + 0.25q = 4.05

Step-by-step explanation:

Two equations are required to represent this problem as posed.

1. An equation for the number of coins:

n + q = 25

2. An equation for the value of the coins:

0.05n + 0.25q = 4.05

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Furnace repairs Rj's plumbing charges $55 plus $40 per hour for emergency service. Gary remembers being billed over $150 for an emergency call. How long was Rj there?Use an inequality

Answers

You set it up as a y=mx+b problem 150=55x+40 then you subtract 40 from 150 making 110=55x so x=2

Correct reason why (x+y)^2 is not equal to x^2+y^2

Answers

$(x+y)^2 =x^2+2xy+y^2\not=x^2+y^2$

6 subtracted from the quotient of 84 and 7

Answers

Answer:

Your answer is: 6

84/7=12-6= 6

6 is your answer

Pls hep

Solve the inequality.

Answers

Answer:

y > 9

Step-by-step explanation:

Given inequality:

$-6 > -(2)/(3)y$

To solve the given inequality, we need to isolate y on one side of the equation.

Begin by multiplying both sides of the inequality by 3 to eliminate the fraction on the right side:

$-6 \cdot 3 > -(2)/(3)y\cdot 3$

$-18 > -2y$

Now, divide both sides of the inequality by -8 to isolate y. Remember to reverse the inequality sign, as we are dividing by a negative number.

$(-18)/(-2) > (-2y)/(-2)$