Answer:
She needs a grade of 71 on her next text.
Step-by-step explanation:
Mean of a data-set:
The mean of a data-set is the sum of all values in the data-set divided by the number of values.
Tammy has scored 82, 78, and 93 on her previous three tests.
Thus, her grades are 82, 78, 93 and x, in which x is her grade in the fourth test.
There are 4 tests.
What score does she need on her next test so that her average (mean) is 81?
We have to find x when the mean is 81. So
She needs a grade of 71 on her next text.
Answer: since there is no table shown you can’t really tell but the closest would be the number that shows up the most amount of time but you would have to take into consideration of the increase of the number
Step-by-step explanation:
Answer: 540 cm cubed
Step-by-step explanation:
Formula = L*W*H
18 * 7.5 * 4 = 72 * 7.5 = 540
Combine the 2 equations:
3x-2y=12
-3x+8y=-6
---------------
6y = 6, which tells us that y=1.
Now subst. 1 for y in the 2nd equation: -3x +8(1) = -6.
Then 14=3x, and x = 14/3.
The solution is (14/3,1).
Answer:
JL = 11
Step-by-step explanation:
JK + KL = JL
o_____o_______________o
J <3> K <8> L
3 + 8 = 11
