There are 3 feet in 1 yard. How many feet are in 25 yards?

Answers

Answer 1
Answer:

Answer: 75ft

Step-by-step explanation: if you take 3 yards and multiply it by 25 you get 75, or you can do It the long way and add 3, 25 times.


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Lynne is driving at a constant rate of 48 miles per hour. How far will she drive in 4 hours? A. 144 miles B. 148 miles C. 192 miles D. 196 miles

What is the approximate area of a circle with a radius of 13cm? A.40.8cm² B.530.7cm² C.784cm² D.2461.8cm²

Answers

It would be B (530.7) because if you do 3.14 x 13 x 13 (Or to the second power) Then you get 530.66, the round to the nearest tenths 
the area of a circle can be found by the formula A=pi*r^2. Pi equals 3.14 so multiply that by 13^2. 13^2 equals 169. So 3.14 * 169 = 530.66 cm^2 and that rounded is B) 530.7cm^2

How can you tell when its a repeating decimal ?!?how can you tell when the digits begin repeating ?!?
1,360/220

Answers

1,360/220means 1360÷220that equals. = 6.1818181818... and that goes to infinity it will never be a whole number it will repeat..repeat repeat. the sequence will repeat itself you will need to work the problem out because some number are quite long before they repeat themselves and you won't think they are and there can be many numbers that repeat
wouldn't that be
6 remainder 150?

Find the slope of the line that passes through points (9,8) and (4,-2).

Answers

You can find the slope of the two points with the following formula:

m=(y2-y1)/(x2-x1)

Substitute the corresponding values into the equation.

m=(-2-8)/(4-9)

m=(-10)/(-5)

m=2

The slope of the line is 2.

A medical company tested a new drug on 100 people for possible sideeffects. This table shows the results.

Answers

Answer:

A

Eclxplain Answer

AAAAAAAA

Answer:

A p(side effects child)=0.42

   P(side effects adult)=0.12

Step-by-step explanation:

Conclusion children have much greater chance of having side effects than adults

twice a number plus another number is 310. The difference between the two numbers is 55. What are the two numbers

Answers

t us assume the two numbers to be "x" and "y".
Then
2x + y = 310
And
x - y = 55
Let us take the second equation and find the value of x in relation to y.
x - y = 55
x = y + 55
Now let us put the value of x in the first equation, we get
2x + y = 310
2(y + 55) + y = 310
2y + 110 + y = 310
3y = 310 - 110
3y = 200
y = 200/3
   = 66 2/3
Now putting the value of y in the second equation, we get
x - y = 55
x - (200/3) = 55
3x - 200 = 55 * 3
3x = 165 + 200
x = 365/3
   = 121 2/3
So the value of x is 121 2/3 and the value of y is 66 2/3

lets say the first number is x and the second y

twice the first number is 2x plus another number (y) =310
the difference of the numbers (x-y) = 55
we have simultaneous equations here:
2x+y=310
x-y=55

to cancel the y's the signs are different so you add the equations to give
3x=365
divide it by 3 to get:
x=121 and 2/3

using the easier equation x-y=55 we know x=121 2/3
now we substitute to get 121 2/3 -y=55
take 121 2/3 from both sides to get:
-y= -66 2/3
therefore y= 66 2/3

that means x=121.6(recurring) and y= 66.6(recurring)

What is the answer 6.25=r2

Answers

6.25=r2
Divide both sides by 2
3.125=r2/2
2'a cancel out
3.125=r
The opposite of multiplication is division, so you divide 2 from both sides.R2/2 = cancel out6.25/2 = 3.125R = 3.125