Find answer showing detailed workings in the image
Answer:
-1/6
Step-by-step explanation:
When dividing 2 by -12 you would use 2 as the numerator and -12 as the denominator and then simplify it by dividing both by two to end up with -1/6
Answer:
The flip flops cost $25.56 after the discount and tax.
Step-by-step explanation:
A pair of flip flops is $30. This is our starting amount.
The tax will be applied on the price the flip flops are bought for. This means we must apply the discount first.
The discount is 20%. Let's find what the flip flops were sold for.
If the discount is 20%, the flip flops were sold for 80% of their original price. Let's find 80% of 30.
80% of 30 = ?
0.80 • 30 = ?
= 24
The flip flops were sold for $24.
Now we have to apply a 6.5% tax. To find the amount of money added to the total, we need to find 6.5% of 24.
6.5% of 24 = ?
0.065 • 24 = ?
= 1.56
The tax was $1.56.
We need to add the tax to the discounted price.
1.56 + 24 = ?
= 25.56
The flip flops cost $25.56 after the discount and tax.
Hope this helps!
a) nearest integer = -7
Step-by-step explanation:
hope it helps you
1) BMI calculation
Subject A B C
Age 57 30 18
Gender Male Male Male
heigth 70 in 72 in 68
70 * 2.54 = 177.8cm 72*2.54=182.88cm 68*2.54=172.72 cm
weight 165 lb 190 lb 185 lb
165/2.2046=74.8kg 190/2.2046=86.2kg 185/2.2046=83.9kg
BMI 74.8*10,000 86.2*10,000 83.9*10,000
----------------- = 23.7 ----------------- = 25.8 ----------------- = 28.1
(177.8)^2 (182.88)^2 (172.72)^2
2) Weight status
Subject A: 18.5 ≤ 23.7 ≤ 24.9 => Considered Ideal
Subject B: 20.5 ≤ 25.8 ≤ 29.9 => Considered Overweight
Subject C: 20.5 ≤ 28.1 ≤ 29.9 => Considered Obese
Ideal weight range
Inequality
w * 10,000 18.5*h^2 24.9*h^2
18.5 ≤ --------------- ≤ 24.9 => ------------- ≤ w ≤ -------------
h^2 10,000 10,000
Subject A: h = 177.8 cm =>
18.5*(177.8)^2 24.9*(177.8)^2
------------------- ≤ w ≤ ---------------------
10,000 10,000
58.5 kg ≤ w ≤ 78.7
Subject B: h = 182.88 cm
18.5*(182.88)^2 24.9*(182.88)^2
------------------- ≤ w ≤ ------------------------
10,000 10,000
61.9 kg ≤ w ≤ 83.3
Subject C:
18.5*(172.72)^2 24.9*(172.72)^2
--------------------- ≤ w ≤ ---------------------
10,000 10,000
55.2 kg ≤ w ≤ 74.3 kg
3) Is BMI an appropiate measure of health?
Pros:
* it is quick and easy to calculate, so it provides a prompt measure.
Cons:
* It is not accurate.
* It leaves out specific conditions of the person: genetic and fitness.
I like that it provides a standardization to compare the status of different persons based on an objective measure, but you need to include other factors: age, gender, build, fat %, activities performed, among others. So, I am in favor of using it only like a factor but you need to use other additional measures.
