Answer:
Hi How are you doing today???
Answer:
solution set is (x,y) = (7,6)
Step-by-step explanation:
solving by substitution method
2x +y=20--------------1
6x-5y=12---------------2
from equation 1, solve for y
2x+y=20
y= 20-2x------equation 3
adding value of y in equation 2
6x-5y=12
6x-5(20-2x)=12
6x-100+10x=12
16x= 12+100
16x= 112
x= 112/16
x=7
adding value of x in equation 3
y= 20-2x
y= 20- 2(7)
y=20-14
y=6
so solution set (x,y) = (7,6)
Okay so first of all you are going to cross multiply, which is simply multiplying diagonally across so (6x×5 and 25×3) then you just answer each part and set them equal to each other so (30x=75). Then you just divide 30 on each side which ends up being (x=2.5)
Answer:
Ashley can type 475 more words than Tristan in 95 minutes.
Step-by-step explanation:
1. Multiply the amount of words Tristan can type per minute (57) times 95 to get 5,415 typed words in 95 minutes.
2. Multiply the amount of words Ashley can type per minute (62) times 95 to get 5,890 typed words in 95 minutes.
3. Next you subtract Tristan's total amount, 5,415 from Ashley's total amount to get the answer: Ashley can type 475 more words than Tristan in 95 minutes.
Hope this helped
Answer:
-14x + 4y
Step-by-step explanation:
Step 1: Set up expression
(-10x - y) - (4x - 5y)
Step 2: Distribute negative
-10x - y - 4x + 5y
Step 3: Combine like terms
-14x + 4y
