Answer:
20/7 or 2 and 6/7
Step-by-step explanation:
convert it into the equation 5=k/4
so 5x4 is 20
k=20
then x=20/y
and y is 7
so the answer is 20/7
Answer:
10 cars
Step-by-step explanation:
volleyball team = past money + money from car wash = 40 + 2 per car = 40 + 2 * number of cars
wrestling team = past money + money from car wash = 50 + 1 * number of cars
set the two equal to each other because they raise the same amount
40 + 2 * number of cars = 50 + 1 * number of cars
set number of cars to n
40 + 2n = 50 + n
subtract n from both sides to put all the variables on one side
40 + n = 50
subtract 40 from both sides to find n
n = 10
Answer: 205,209
Step-by-step explanation:
We want to find a perfect cube that is closest to the number N = 205,632
A perfect cube number is a number such that the square root is a whole number.
Now, to search this number we must take the square root of N:
n = √(205,632) = 453.47
Now, we can round it down or up and get whole numbers, and the squares of those whole numbers will be perfect squares that are near 205,632, lets start with rounding down.
n = 453
the square of 453 is:
453^2 = 205,209
If instead we round up the 453,47, we would get:
n = 454
and the square will be
n = 454^2 = 206,116
Now, to see which one is closser to N, we can take the differences:
205,632 - 205,209 = 423
206,116 - 205,632 = 484
so if we take n = 453 we are closser no N, then the perfect square that is closest to 205,632 is 205,209
