Hello there!
The answer is c because the equation that is being used is point-slope, which is:
y-y1=m(x-x1)
hope this helps
Answer: 145
Step-by-step explanation:
(−72)(−23)
−72(−23)
1423
Answer:
The difference is 48 meters
Step-by-step explanation:
<u><em>The question is</em></u>
What is the difference of the hikers' altitudes?
Let
x -----> the Melissa's altitude in meters
y ----> Brian's altitude in meters
we have that
---> is positive because is above sea level
---> is negative because is below sea level
Remember that the sea level is the altitude equal to zero
<em>Find the difference</em>
To find out the difference of the hikers' altitudes, subtract Brian's altitude from Melissa's altitude
so
Remember that (-1)(-1)=+1
x - 2y + z = 5 | *2
⇒ 2x - 4y+ 2z=10
3x + 3y - 2z = - 6 } I sum up these relations
--------------------------------
2x+3x - 4y+3y+2z-2z=10-6
5x - y = 4 (1)
3x + 3y - 2z = - 6 | *3 ⇒ 9x + 9y - 6z = - 18
2x - y + 3z = 11 | *2 ⇒ 4x - 2y + 6z= 22 I sum up these
----------------------------------
⇒ 9x+4x+9y-2y-6z+6z= 4
13x+ 7y= 4 (2)
I write (1) and (2)
5x - y = 4 | *7
35x - 7y= 28
13x+7y=4
48x = 32
x= 32/48=4/6 ( 32:8=4, 48:8=6)
x= 2/3
5x-y=4,
5*2/3-y=4
y=10/3 -4=10/3-12/3=-2/3
⇒ y= - 2/3
x - 2y + z = 5
2/3 - 2*(-2/3)+z=5
2/3+4/3+z=5
6/3+z=5
2+z=5
z=3
x+y+z=2/3-2/3+3=3
x+y+z=3
Answer:
So she will have a total of 339 apples
Step-by-step explanation:
Given:
Total bowls = 3
First bowl have = 75 apples
Second has 75 more then that
Third 36 less then second
To Find:
Total fruits = ?
Solution:
AS given First bowl have = 75 apples
Now according to conditions
Second bowl have = 75 + First bowl have
= 75 + 75
= 150 apples
Now
Third bowl have = Second bowl - 36
= 150 -36
= 114
Total Apples = First bowl apples + second bowl apple + third bowl apples
Putting in the values
Total apples = 150 + 75 + 114
= 339
So she will have a total of 339 apples
