Answer:
Ι-3Ι = 3
Step-by-step explanation:
We need to evaluate the Ι-3Ι.
In mathematics, when we find the absolute value or modulus IxI is a non negative value of x without any sign.
The absolute value of x is thus always either positive or zero, but never negative: when x itself is negative (x < 0), then its absolute value is necessarily positive.
For example:
I-xI = x
IxI = x
I-2I = 2
I2I = 2
Similarly,
I-3I = 3
That's the final answer.
220*.14 =30.8 just turn %into decimal by moving point over 2 places
Answer:
Step-by-step explanation:
5 gallons to 20 qts = x gallons to 18 qts
5 x
------ = ------ cross multiply
20 18
(20)(x) = (5)(18)
20x = 90
x = 90/20
x = 4.5 <==== 18 qts is equal to 4.5 gallons
====================
20 qts to 5 gallons = 20/5 = 4 qts per gallon <==
Answer:
d = 10/72
Step-by-step explanation:
c and d vary inversely
c = k/d
Where,
k = constant of proportionality
d = 2/9 when c = 5
c = k/d
5 = k ÷ 2/9
5 = k × 9/2
5 = 9k/2
Cross product
5*2 = 9k
10 = 9k
k = 10/9
c = k/d
c = 10/9 ÷ d
c = 10/9 × 1/d
c = 10/9d
find d when c = 8
c = 10/9d
8 = 10/9d
Cross product
8*9d = 10
72d = 10
d = 10/72