Answer:
x=7 and y=-1
Step-by-step explanation:
X+Y=6 OR X=6-Y ...(1)
X-Y=8 ...(2)
substitue X=6-Y in (2)
(6-Y)-Y=8
6-2Y=8
-2Y=8-6
-2Y=2
Y=2/-2\Y=-1 ANS.
for x, substitute Y=-1 in (1) above
X-(-1)=8
X=8-1
X=7 ANS.
5.6 gallons of paint are needed to cover 1,960 square feet.
two gallons are needed for 700, so divide 700 by 2 to get square feet per gallon.
then divide 1,960 by 350 to get the gallons of paint needed
5.6 gallons
Hope this helps!
Answer:
1/12
Step-by-step explanation:
The probability of landing on tail = 1/2
The probability of rolling a 3 = 1/6
The probability of doing BOTH is 1/2 x 1/6 = 1/12
Let's find the mean of all the values first.
6.3+6.4+6.5+6.6+6.8+6.8+7.5= 46.9
Let's divide by the number of values.
46.9÷7=
6.7
Now let's find the distance that each number is away from 6.7 and find the mean of those numbers.
0.4+0.3+0.2+0.1+0.1+0.1+0.8=
.2857
≈ 0.3
So, the absolute deviation is 0.3.
Number 4 is 66
Number 5 Iseconds 5.32
