Answer:
-
(Estimation) -

Step-by-step explanation:
<h3>
The complete exercise is:</h3><h3>
"At breakfast, he drinks 237 milliliters. At lunch, he drinks 300 milliliters. At dinner, he drinks 177 milliliters. Estimate the total amount of water Rogelio drinks. Then, find the actual amount of water he drinks at all three meals."</h3>
In order to estimate the total amount of water Rogelio drinks at all three meals, you need to follow these steps:
1. Round 237 milliliters and 177 milliliters to the nearest Tens place.
If the digit in the Ones place is less than 5, you must round down.
If the digit in the Ones place is greater than or equal to 5, you must round up.
Then:

2. Add 240 milliliters, 300 milliliters and 180 milliliters:

In order to find the actual amount of water Rogelio drinks at all three meals, just add 237 milliliters, 300 milliliters and 177 milliliters. This is:

A: parallel
B: perpendicular
C: neither
D: perpendicular
E: parallel
Explanation: Parallel lines have the same slope. Perpendicular lines have inverted and converted slopes. Neither has neither.
Answer:
i think its 80.64 i don’t know if its correct
Step-by-step explanation:
Answer:
x = 2, y = 4
Step-by-step explanation:
x +
y = 5 ( multiply through by 4 to clear the fraction )
4x + 3y = 20 → (1)
x -
y = 0 ( multiply through by 2 to clear the fraction )
2x - y = 0 → (2)
Multiplying (2) by 3 and adding to (1) will eliminate y
6x - 3y = 0 → (3)
Add (1) and (3) term by term to eliminate y
10x + 0 = 20
10x = 20 ( divide both sides by 10 )
x = 2
Substitute x = 2 into either of the 2 equations and solve for y
Substituting into (1)
4(2) + 3y = 20
8 + 3y = 20 ( subtract 8 from both sides )
3y = 12 ( divide both sides by 3 )
y = 4
Solution is x = 2, y = 4
The ratio in simplest form is 2:5