Answer: the number is 369
Step-by-step explanation:
Let the missing number be y
8/9 × y = 328
8/9y = 328
Divide both sides by 8/9
y = 328 ÷ 8/9
y = 328 × 9/8 (multiply the two numerators: 328 x 9= 2952
Multiply the denominator by 1: 8 x 1= 8
Therefore y = 2952/8
y = 369
I hope this helps.
Answer:
16-degree decrease
Step-by-step explanation:
Take the final temperature of -12 and subtract the initial temperature of 4
-12 - 4
-16
The change in temperature is 16 degrees
The minus sign tells us it was a decrease
What is the mode of this data set? 4, 69, 84, 69, 90, 75, 94, 90, 90, 1, 5
nika2105 [10]
Answer:
90
Step-by-step explanation:
90 because it occurs most in the data set.
Answer:
(1, -9)
Step-by-step explanation:
4x + y = -5
8x + 3y = -19
If we have to use elimination, that means we're going to add or subtract these two whole equations by each other so that we can cancel out one of the variables.
I think that we could easily turn 4x into 8x if we multiply the top equation by 2.
4x + y = -5 ---> 8x + 2y = -10
Now put them next to each other, and subtract to get rid of the xs.
8x + 2y = -10
- 8x + 3y = -19
------------------------
0x - y = -10 - -19
-y = 9
y = -9
Plug this back in to get x.
4x + y = -5
4x - 9 = -5
4x = -5 - -9
4x = 4
x = 1
