So x + y = 45, and 4x + 5y = 195. Get y by itself. Subtract x from both sides in the first equation to get y = 45 -x, and subtract 4x from the second equation to get 5y = 195 - 4x. Divide by 5 to both sides to get y = 39 - 4/5x. 39 - 4/5x = 45 - x. Add x to both sides to get 39 - 1/5x = 45. Subtract 39 from both sides to get -1/5x = 6. Divide by -1/5 to get x = -30, or 30. In the first equation, do 30 + y = 45. Subtract 30 from both sides to get y = 15. Check. 4(30) + 15(5) = 195, or 120 + 75 = 195.
Answer:when you flip a coin there are two outcomes and when you roll a die there are eight outcomes meaning 2×8=16 total outcomes
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
7x+3=2x+13
7x-2x=13-3
5x=10
=
x=2
Words of Tasha = A
A x 120/100=54
simplify 120/100=6/5
A x 6/5=54
divide both side by 6/5
A=54/(6/5)
A=54x5/6
A=45
Tasha typed 45 words
Answer:

Step-by-step explanation:
Given


Required
Determine the third score
Average is calculated using;

In this case:


Let the third score be x; So:

Substitute 88 for Average


Multiply through by 3



