MATHEMATICS MIDDLE SCHOOL

6Isabella paid a $50 initiation fee to the
gym. Each month she pays $25. Write
a linear equation that shows how
much Isabella spent, y, at the gym in x
months.
If Isabella keeps her membership
for 6 months, how much does she
end up paying the gym?
What is the equation

Answers

Answer 1
Answer:

Answer:

$200

y=25x+50

Step-by-step explanation:

y=25(6)+50

y=150+50

y=200
Answer 2
Answer:

Answer:

y = 25x +50

She would pay y = 25(6) + 50 = y = 150 + 50 or $200 in total, including the initiation fee.

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On the map, the distance between two cities is 7.3 centimeters. The map scale is 1cm:50. What is the actual distance between the two cities?

Answers

1 cm : 50.

7x50=350
              +
0.3x50=15 = 315.             The actual distance is 315 miles.(?)
                       
(?)-The other measurement wasn't given.

What is the difference?
x2 + 3x+2 (x+2)(x+1)
4X+2
X-1
X2+3x+2

Answers

Answer:\int\limits^a_b {x} \, dx X\sqrt[n]{x} + \lim_(n \to \infty) a_n -\left \{ {{y=2} \atop {x=2}} \right.

Step-by-step explanation:

An observer spots a plane flying at a 42 degree angle to his horizontal line of sight. If the plane is flying at an altitude of 15,000 ft, what is the distance (x) from the plane (P) to the observer (O)

Answers

This seems like a high school question. I will use trigonometry.

The three points (P, O, and the point on the ground directly below P [call it G]) form a right triangle. The 42-degree angle is opposite PG, the altitude of the plane. Since we are told to find x, which is PO, we can use the definition of the sine function, which is opposite divided by hypotenuse.

sin(42^o)=(opp)/(hyp)=(15,000ft)/(x)


Solving for x,

x=(15,000ft)/(sin42^o)=(15,000ft)/(.66913)=22420\ ft


This makes sense because the hypotenuse must be longer than either of the legs.

Please help with this, due today


1. c + 3/10 = 31/70
2. w + 6 1/2 = 10 1/6

Answers

Answer:

1. c = 1/7

2. w = 11/3

Step-by-step explanation:

1. c + 3/10 = 31/70

move 3/10 to the opposite to get c, we can do this by subtracting 3/10 from both sides

c = 31/70 - 3/10

c = 1/7

2. w + 6 1/2 = 10 1/6

same thing, move 6 1/2 by subtracting it from both sides

w = 10 1/6 - 6 1/2

w = 11/3

1. C=1/7
Work:
You have to subtract 3/10 on both sides.
2. -4/3
You have to subtract 6 1/2 on both sides.

One survey estimates that,on average, the retail value of a mid sized car decreases by8% annually.if the retail value of a car is v dollars today,which expression represents the car value 1year later?

Answers

If the value is 100% of ' v ' today and it decreases 8% in a year,
then the value will be 92% of ' v ' 1 year later.  That's 0.92v .

How do you round 78.539 to the nearest hundredths

Answers

Find the hundredths place, which in this case would be 3
Look one number to the right, which is 9
Since 9 is greater than 5, you would round the 3 up to 4
78.54
The 5 is in the tenths place, the 3 is in the hundredths place, and the 9 is in the thousandths place. So, to round to the hundredths place, we would look at the number after the 3, which is 9. Because 9 is greater than 4, we change add 1 to the 3, making it 4. So the correct answer is 78.54. However, if instead of 9 the number after the hundredths place was lower than 5, the 3 would stay 3, making the answer 78.53. But the correct answer in this case is 78.539.
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