Answer:
Ivan had 288 sweet while Ken had 672 sweets
Step-by-step explanation:
Let the number of sweets owned by Ken and Ivan be k and v respectively.
After Ken gave away 5/7 of his sweet, what he had left
= k - 5k/7
= 2k/7
he had 2/3 as many sweets as Ivan then
2k/7 = 2v/3
Divide both sides by 2 and cross multiply
7v = 3k
Ivan then gave away 120 sweets, Ivan would have
v - 120 = k/4
multiply both sides by 4
4v - 480 = k
7v = 3(4v - 480)
7v = 12v - 1440
12v - 7v = 1440
5v = 1440
v = 1440/5
= 288
7v = 3k
7 * 288 = 3k
k = 7 * 288/3
= 672
Mean: 9.75.
Median: 2.5.To find the mean.
Count the number of data points in your data set.
Sum up the total of your data set; add them all together.
Average = Mean = Sum/Number.The median of a data set can be found by arranging all the values from lowest to highest value and picking the one in the middle.
Answer:
Both functions are multiplied by 2.
Step-by-step explanation:
Answer:
400 students, 1/8 are left handed
Step-by-step explanation:
Answer is b. ( -1, -5)
Answer is b. (-1, -5)
Step by step
Substitute the x and y values into both equations to find equality
Answer b. Makes both equations equal
2x + y = -7
2(-1) + (-5) = -7
-2 -5 = -7
-7 = -7
it equals now let’s do the 2nd one
x - y = 4
-1 -(-5) = 4
4 = 4
This one equals too. I did the math on the other three answers and they did not equal.
