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- 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
how to study physic and understand
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I need more explanation or all about nuclear physics
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A wave is described by the function D(x,t)=(1.6cm) sin[(1.2cm^-1(x+6.8cm/st] what are:a.Amplitude b. wavelength c. wave number d. frequency e. period f. velocity of speed.
what is frontier of physics
A body is projected upward at an angle 45° 18minutes with the horizontal with an initial speed of 40km per second. In hoe many seconds will the body reach the ground then how far from the point of projection will it strike. At what angle will the horizontal will strike
Suppose hydrogen and oxygen are diffusing through air. A small amount of each is released simultaneously. How much time passes before the hydrogen is 1.00 s ahead of the oxygen? Such differences in arrival times are used as an analytical tool in gas chromatography.
what's the definition of physics
the science concerned with describing the interactions of energy, matter, space, and time; it is especially interested in what fundamental mechanisms underlie every phenomenon
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nuclei having the same Z and different N s
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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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