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4 years ago

13

Ramona went to a theme park during spring break. She was there for 8 hours and rode 24 rides. At what rate did Ramona ride rides

in rides per hour?

1 answer:

Lapatulllka [165]4 years ago

8 0

Answer: 3 rides per hour

Step-by-step explanation: 24 rides divided by 8 hours is 3 rides per hour

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Find an equation of the circle with center at (-9,2) and passing through (2,-2) in the form of (x-A)^2+(y-B)^2=C where A,B,C are

Gelneren [198K]

The center going through (-9,2) gives you A and B
(x - - 9)^2 + (y - 2)^2 = r^2
(x + 9)^2 + (y - 2)^2 = r^2

Going from the center to the given point gives you the radius. We need the r^2 which is the way the distance formula works: it will give you r^2. c = r^2

d^2 = (x2 - x1)^2 + (y2 - y1)^2
x2 = -9
x1 = 2
y2 = 2
y1 = -2
r^2 = (-9 - 2)^2 + (2 - - 2)^2
r^2 = (- 11 ) ^2 + (4)^2
r^2 = 121 + 16
r^2 o= 137
So we get
(x + 9)^2 + (y - 2)^2 = 137

4 0

4 years ago

I need help please help

timurjin [86]

What is this nonsense math ? What kind of teacher would give this math

3 0

3 years ago

Mental math 5×395=5×(_ - _)step by step how do you solve this problem?

mr Goodwill [35]

You want to use the distributive property, i.e. the possibility to distribute a multiplication to both terms of an sum/subtraction.

In this case, if you think of 395 as of 400-5, you have

$5 \times 395 = 5 \times (400-5)$

And you can use the distributive property to write

$5 \times (400-5) = 5\times 400 - 5\times 5$

Both of these multiplications are easy to perform in your mind:

$5\times 400 - 5\times 5 = 2000 - 25 = 1975$

3 0

3 years ago

Lily has two times as much money invested in 8% stocks as she has in bonds paying 6%. How much she has invested in stocks if her

EleoNora [17]

Answer:

Final answer is $4440.

Step-by-step explanation:

Let amount of money invested in 8% stock = x

Let amount of money invested in 6% stock = y

then total money invested $325.6 gives equation

8% of x + 6% of y = 325.6

0.08x + 0.06y = 325.6

8x + 6y = 32560...(i)

other equation will be x=2y...(ii)

plug (ii) into (i)

8x + 6y = 32560

8(2y) + 6y = 32560

16y+ 6y = 32560

22y = 32560

$y=\frac{32560}{22}$

y=1480

plug y=1480 into (ii)

x=2y=2(1480)=2960

Then total money invested in stocks = x+y= 1480+2960=4440

Hence final answer is $4440.

5 0

3 years ago

PLS HELP (AGAIN) ILL MARK BRAINLIEST. I HAVE TO TURN THIS IS ASAP

valina [46]

Step-by-step explanation:

A diameter spans from one end of (in this case, a circle) to the direct opposite end, going through the center-point. The radius, on the other hand, is half of a diameter, and spans only from the center-point to a point on the circle.

In this case:

1) Diameter = 18 km (given)

Radius = 18/2 = 9 km

2) Diameter = 1 x 2 = 2 m

Radius = 1 m (given)

3) Diameter = 17 x 2 = 34 cm

Radius = 17 cm (given)

4) Diameter = 50 mm (given)

Radius = 50/2 = 25 mm

John has a swimming pool, in which the center of the pool to the edge is 3 meters. What is the diameter? Simply multiply 3 with 2:

3 x 2 = 6 meters

6 meters is the diameter.

5 0

3 years ago