Answer:
the answer is 45.5 there you go
Step-by-step explanation:
Let a be the amount needed of 70% pure antifreeze, and let b be the amount needed of 95% pure antifreeze.
0.7a + 0.95b = 180 * 0.9 .........(1)
a + b = 180 .............................(2)
b = 180 - a ..............................(3)
Plugging the expression for b in equation (3) into equation (1), we get:
0.7a + 0.95(180 - a) = 162 ......(4)
Solving equation (4) gives the value a = 36, and plugging this value for a into equation (2) we get b = 144.
Amounts needed are therefore 36 gallons of 70% pure antifreeze and 144 gallons of 95% pure antifreeze.
Answer: 8:4:12 I believe...
Step-by-step explanation: If the order is 2-his brother 1-his friend- and 3- himself, then I believe his brother would get eight, his friend 4, and he would have twelve.
Answer:
Step-by-step explanation:
A plane took 1.5 hours to complete the journey of 915 miles.
Therefore, constant of proportionality will be,
k =
y = 610x
Time in hours (x) Distance in miles (y) Constant
1 y = 610x ⇒ y = 610 miles 610
1.5 915 610
2 y = 2 × 610 = 1220 miles 610
2.5 y = 2.5 × 610 = 1525 miles 610
Answer:
Step-by-step explanation:
Given
See attachment for complete question
Required
Identify the unexplored point
Since the shaded region has been explored, an unexplored point will be located in the white region.
The given points are:
Plot each of the above points on the grid (See attachment 2)
In attachment 2, only (4,3) lies on the white region.
<em>Hence, (4,3) has not been explored</em>