Answer: (-3, -5)
<u>Step-by-step explanation:</u>
-6x + y = 13
<u> 6x + 3y</u> = <u>-33 </u>
4y = -20
<u> ÷4 </u> <u>÷4 </u>
y = -5
6x + 3y = -33
6x + 3(-5) = -33
6x - 15 = -33
6x = -18
x = -3
*********************************************************************************
Answer: (, 2)
<u>Step-by-step explanation:</u>
9x + y = 5 → 1(9x + y = 5) → 9x + y = 5
3x - 3y = -5 → -3(3x - 3y = -5) → <u> -9x + 9y</u> = <u>15 </u>
10y = 20
<u> ÷10 </u> <u>÷10 </u>
y = 2
9x + y = 5
9x + (2) = 5
9x = 3
x =
Answer: 3/8, 0.375, 37.5%
Step-by-step explanation:
Count the number of cards with odd numbers that are greater than 4. 5, 7, and 9 are odd numbers greater than 4. There are 3 cards with odd numbers greater than 4. Probability is found by dividing this by the total number of cards, 8. This gets you a fraction of 3/8.
Answer:
67.5
Step-by-step explanation:
= 135/2 = 67.5
Answer:
74.
Step-by-step explanation:
Given: <W,X,Y=142 degrees. Also given: <1=68 degrees.
If that whole angle equals 142 degrees, and angle 1 equals 68 degrees and you're trying to find the degreeage of angle 2, you'll need to subtract 142 by 68 to get your answer. In this case, the solution is 74.
Answer:
let the $12 dish be x and the other y
x + y = 12 <--- 1
12x + 10.50y= 138 <--- 2
multiply equation 1 by 12
so now we have
12x + 12y = 144
12x + 10.50y = 138
now subtract each one and that cancels out x
1.5y = 6
y = 4
now subsitute that into any equation
x + 4 = 12
x = 12 - 4
x = 8