I feel sad because I'm in advanced and I can't figure this problem out: A high speed train travels 100 miles in 2/3 hour. Which Speed Represents the rate of the train ?
F: 50 mph
G: 75 mph
H: 100 mph
I: 150 mph

Answers

Answer 1

Answer: it would 150 mph because the train traveled more that 100 miles in less then an hour meaning the train had to travel faster than 100 mph. if you notice the speed is in miles per hour so if you are going 100 mph that means you traveled 100 miles in one hour.

Answer 2

Answer:
75 because that's two thirds of one hundred

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Find the range of the function for given domain f(x)=2x-7; (-2,-1,0,1,2)

Use the distributive property to form a new expression form 42+56 by finding the GCM of the addends

Answers

7 (8+6)
because the gcm is 7 and 8 + 6 goes to equal 42 and 56

Sa se determine masurile unghiurilor formate de doua inaltimi ale unui triunghi echilateral

Answers

Let's determine the
measures of the angles
formed by two heights of an equilateral triangle.

Which is the least valid way to stimulate how many boys and girls are in a random sample of 20 students from a school that is half boys and half girls?A. Flip a coin 20 times, assigning one out come to boys and the other to girls

B. Drop 20 coin at once and count the number of each outcome

C. Count how many boys and girls are in your mat class and use a proportion

D. Have a calculator generate 20 random integers and count the number of even and odd integers

Answers

Total number of Student in the School in which half are boys and Half are girls =20

Probability of an event

$=\frac{\text{Total favorable oucome}}{\text{Total Possible outcome}}$

Probability of Number of Boys as well as Probability of Number of Girls

$=(10)/(20)\n\n=(1)/(2)$

The Most appropriate option is

Option C

Count how many boys and girls are in your math class and use a proportion.

In Option A, B and D

The probability of each outcome that is Success and Failure will be nearly equal to 0.50 .

But in Option C, you can't say precisely that Probability will be equal to , 0.50 in each case , that is Success and Failure.

I think the answer is C

A semicircular flower bed has a diameter of 3 metres.What is the area of the flower bed?
m2

Answers

A semicircular flower bed has a diameter of 3 meters.

Diameter = 3 meters

Radius = $(diameter)/(2)=(3)/(2)$

Area of circle = $\pi r^2$

Area of semi circle = $(1)/(2)\pir^2$

where r is the radius of the circle

Area of semi circle = $(1)/(2) * \pi *(3)/(2)^2$

We use 3.14 for pi

Area of semi circle = $(1)/(2) * 3.14 *(3)/(2)^2$ = 3.5325

Area of semi circle = 3.53 $m^2$

Is 10 pounds or 10 kilograms greater

Answers

10 pounds or 10 kilograms

1 pound ≈ 0.4536 kg

10 pounds ≈ 10 *0.4536 ≈ 4.536 kg.

10 pounds which is ≈ 4.536kg is less than 10 kg.

Therefore 10 kg is greater than 10 pounds.

Question 2 Multiple Choice Worth 1 points)(01.03 MC)

Laci and Leon are saving money to go to an amusement park. Laci has $1 more than 4 times the amount of money Leon has. Together, they have $76 Write an

equation to determine how much money they have together