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- Elementary algebra
- Solving linear equations and
- Application ii - solving problems
Practice set d
Garden A produces
times as many vegetables as garden B. Together the gardens produce 102 pounds of vegetables. How many pounds of vegetables does garden A produce?
- Let
Garden A produces 87 pounds of vegetables.
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Sample set e
Two consecutive even numbers sum to 432. What are the two numbers?
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Practice set e
Exercises
Solve the following problems. Note that some of the problems may seem to have no practical applications and may not seem very interesting. They, along with the other problems, will, however, help to develop your logic and problem-solving ability.
If eighteen is subtracted from some number the result is fifty-two. What is the number?
- Let
- The equation is
- (Solve the equation.)
- (Check)
- The number is
.
Step 1: Let
= the unknown quantity.
Step 2: The equation is
Step 3: (Solve the equation.) Add 18 to each side.
Step 4: (Check)
True.
Step 5: The number is 70.
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If a quantity plus
more of the quantity is
, what is the original quantity?
- Let
original quantity.
-
- The original quantity is
.
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A company must increase production by
over last year’s production. The new output will be 56 items. What was last year’s output?
- Let
- Last year’s output was
items.
Step 5: Last year's output was 50 items.
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A company has determined that it must increase production of a certain line of goods by
times last year’s production. The new output will be 2885 items. What was last year’s output?
- Last year’s output was
items.
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A proton is about 1837 times as heavy as an electron. If an electron weighs
units, how many units does a proton weigh?
- A proton weighs
units.
Step 5: A proton weighs
units.
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Neptune is about 30 times as far from the sun as is the Earth. If it takes light 8 minutes to travel from the sun to the Earth, how many minutes does it take to travel to Neptune?
- Light takes
minutes to reach Neptune.
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Questions & Answers
classification of plants, gymnosperm features.
what is the features of gymnosperm
Linsy
how many types of solid did we have
what is an ionic bond
Samuel
what is fallopian tube
Merolyn
what's bulbourethral gland
urine is formed in the nephron of the renal medulla in the kidney. It starts from filtration, then selective reabsorption and finally secretion
State the evolution relation and relevance between endoplasmic reticulum and cytoskeleton as it relates to cell.
Jeremiah
how is urine formed in human
Konadu
how is urine formed in human
Rahma
what is the diference between a cavity and a canal
what is the causative agent of malaria
Diamond
malaria is caused by an insect called mosquito.
Naomi
Malaria is cause by female anopheles mosquito
Isaac
Malaria is caused by plasmodium
Female anopheles mosquitoe is d carrier
Olalekan
a canal is more needed in a root but a cavity is a bad effect
Commander
In biology, a pathogen (Greek: πάθος pathos "suffering", "passion" and -γενής -genēs "producer of") in the oldest and broadest sense, is anything that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ.
The term pathogen came into use in the 1880s.[1][2
Zainab
Definition of respiration
respiration is the process in which we breath in oxygen and breath out carbon dioxide
Achor
how are lungs work
Commander
where does digestion begins
what are the functions of follicle stimulating harmones?
stimulates the follicle to release the mature ovum into the oviduct
Davonte
what are the functions of Endocrine and pituitary gland
Chinaza
endocrine secrete hormone and regulate body process
Achor
while pituitary gland is an example of endocrine system and it's found in the Brain
Achor
Biology is the study of living organisms, divided into many specialized field that cover their morphology, physiology,anatomy, behaviour,origin and distribution.
Lisah
biology is the study of life.
Alfreda
Biology is the study of how living organisms live and survive in a specific environment
Sifune
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Source:
OpenStax, Elementary algebra. OpenStax CNX. May 08, 2009 Download for free at http://cnx.org/content/col10614/1.3
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