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- 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
if three forces F1.f2 .f3 act at a point on a Cartesian plane in the daigram .....so if the question says write down the x and y components ..... I really don't understand
hey , can you please explain oxidation reaction & redox ?
hey , can you please explain oxidation reaction and redox ?
Boitumelo
for grade 12 or grade 11?
Sibulele
advantages of electrons in a circuit
we're do you find electromagnetism past papers
Ntombifuthi
it is the force or component of the force that the surface exert on an object incontact with it and which acts perpendicular to the surface
Sihle
what is the half reaction of Potassium and chlorine
how to calculate coefficient of static friction
how to calculate static friction
Lisa
How to calculate a current
Tumelo
how to calculate the magnitude of horizontal component of the applied force
Mogano
How to calculate force
Monambi
a structure of a thermocouple used to measure inner temperature
a fixed gas of a mass is held at standard pressure temperature of 15 degrees Celsius .Calculate the temperature of the gas in Celsius if the pressure is changed to 2×10 to the power 4
How is energy being used in bonding?
a rate of change in velocity of an object whith respect to time
Khuthadzo
how can we find the moment of torque of a circular object
Kidist
Acceleration is a rate of change in velocity.
Justice
how to calculate tension by substitution
use fnet method. how many obects are being calculated ?
Khuthadzo
how to calculate acceleration and tension force
you use Fnet equals ma , newtoms second law formula
Masego
please help me with vectors in two dimensions
how to calculate normal force
Mulaudzi
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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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