Question

e. 1 = 1 ml
f. 1 = 0.03381 oz
an 0.9 - liter bottle of mexican wine that costs 280 pesos has the price of dollars per ounce. (do not round until the final answer. then round to the nearest cent as needed.)
id: 2.a.84

1. the standard guidelines for fluid intake recommend that a 10 - 20 - kg child should have 1000 ml of fluid plus 50 ml for each full kilogram of body weight over 10 kg per day. how many 8 - ounce glasses of fluid should a 23 - pound child have each day?

the 23 - pound child should drink about 8 - ounce glasses of fluid each day. (simplify your answer. round to the nearest glass as needed.)
id: 2.a.95

1. decide whether the following sentence makes sense or does not make sense. explain your reasoning.

i know someone who can run 35 liters per second.
choose the correct answer below.
a. the statement makes sense because liters per second is a unit of speed.
b. the statement does not make sense because it is not reasonable for a person to run 35 seconds.
c. the statement makes sense because it is reasonable for a person to run for 35 seconds.
d. the statement does not make sense because liters per second is not a unit of speed.

Explanation:

1. Price - per - ounce calculation for Mexican wine

Step1: Convert liters to milliliters

We know that $1$ liter = $1000$ mL, so for a $0.9$ - liter bottle, the volume in mL is $V = 0.9\times1000=900$ mL.

Step2: Convert milliliters to ounces

Given that $1$ mL $\approx0.03381$ oz, so the volume in ounces is $V_{oz}=900\times0.03381 = 30.429$ oz.

Step3: Convert pesos to dollars

Let's assume an exchange rate of $1$ peso = $0.05$ dollars (you may need to use the actual exchange - rate if given). The cost of the wine in dollars is $C = 280\times0.05=14$ dollars.

Step4: Calculate price per ounce

The price per ounce $P=\frac{14}{30.429}\approx0.46$ dollars per ounce.

Step1: Convert pounds to kilograms

We know that $1$ kg $\approx2.2$ pounds. So, for a $23$ - pound child, the weight in kg is $m=\frac{23}{2.2}\approx10.45$ kg.

Step2: Calculate the recommended fluid intake in mL

The base fluid intake for a child in the $10 - 20$ kg range is $1000$ mL plus $50$ mL for each full kg over $10$ kg. The amount over $10$ kg is $10.45 - 10 = 0.45$ kg. Since we consider full kg for the additional intake, the additional intake is $0$ mL (as $0.45$ is not a full kg). So the total fluid intake $I = 1000$ mL.

Step3: Convert mL to ounces

Since $1$ mL $\approx0.03381$ oz, the fluid intake in ounces is $I_{oz}=1000\times0.03381 = 33.81$ oz.

Step4: Calculate the number of 8 - ounce glasses

The number of 8 - ounce glasses $n=\frac{33.81}{8}\approx4$ glasses.

Liters per second is a unit of volumetric flow rate, not a unit of speed. Speed is measured in units like meters per second, miles per hour, etc. So it is not reasonable to describe a person's running ability in liters per second.

Answer:

$0.46$

2. Fluid - intake calculation for a child