PRACTICE PRÔBL 6. Solve for x and prove your answers for the following: a. :x= 1:8 b. :x = 20:4000 .1:= 4:x %3D %3D d. :1000 = x:500 e.:x = f0:
PRACTICE PRÔBL 6. Solve for x and prove your answers for the following: a. :x= 1:8 b. :x = 20:4000 .1:= 4:x %3D %3D d. :1000 = x:500 e.:x = f0:
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Related questions
Question
Solve questions 6a-e with working or proof of how we got the answer and than 2i for the next pic
Transcribed Image Text:40
Section 1
Mathematics end Dosage Calculations
SELF-A SSESSMENT
Fraction
Decimal
lowest terms.
Quotient
Ratio
a. 25
b. 12:6
C. 33: 66
d. 1:50
e.
2. Solve forxin each of the following:
a. 을:x3D 1:8
x =
540
610
b. 9:x= 5:300
c. T0: 10 =
d. :500 = x: 1000
e. 36:12 = 10 : x
= x:6
/300
f. 6:24 = 0.75:x
g. x:600 = 4:120
x =
20
h. 0.7:70 = x: 1000
to
18
x =
i. 6:12 = :x
Transcribed Image Text:3. To find x, divide the number in the product that contains x into the product of the other terms. R
b. 25:x
c. 50:x= 25 :1000
d. 8:10 = x:30
e. 4:8 =r: 16
Now solve for x when a fraction of xis used in the formula:
Proof:
2. Multiply the other terms and place the product to the right of the equal sign,
PRACT
7. Solve
4. Your answer will be equal to x.
a. O
5. Prove your answer.
b. C
EXAMPLE
с.
1
x:1000 = 1:500
d.
e.
500
= 250
1
Steps 1,2
REV
250x = 1000
Step 3
Step 4
1.
x= 1000 ÷ 250 = 4
x= 4
Proof:
= 2
Step 5
2:1000 = 1:500
1000 = 1000
PRACTICE PROBLEMS
6. Solve for x and prove your answers for the following:
a. 글:x%3D 1:8
b. :x = 20:4000
c. : = 4:x
d. :1000 = x:500
e. :x = f:}
Now solve for X when decimals are used in the formula: 0.6:0.4 = 9:x.
1. Multiply the terms containing the x and place the product to the left of the equal sign. Remembel
steps in multiplying decimals.
2. Multiply the other terms and place the product to the right of the equal sign.
your steps in how to divide decimals.
4. Your answer will be equal to x.
5. Prove your answer.
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