302 Answered Questions for the topic Pre Algebra

Pre Algebra

12/05/16

marina bought 4 books josé bought half as many books as ben together the 3 friends bought 13 books how many bools did ben buy
I need help because it is confusing me like I'm in a trap and I can't get out so I need the answer today no later then today
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Pre Algebra

12/05/16

y = 2x – 106x + 3y = –10a
 . parallel b. perpendicular c. neither  
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Pre Algebra

11/29/16

He types from 15 to 18 pages an hour.If he makes $0.82 for each page,which is a reasonable amount he can earn if he types 15 to 18 pages for 40 hours?
The question is asking us to find out a reasonable amount if he types for 15 to 18 pages per hour. He makes $0.82 per page. It is asking to find out for 40 hours.
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Pre Algebra

11/29/16

If the man continues this pattern for the entire race , is the graph of his distance over time linear? Explain
A man in a 5K race runs 1 km and then walks 0.5 km.
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Pre Algebra

11/29/16

Error analysis:Explain her error and write the correct equation.
Your friend can jump rope 32 times in one minute She writes a rule to predict how many times she can jump for the other time periods. j=32+m j=jumps m=minutes
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Pre Algebra

11/29/16

Write a function rule to find the total income i you can earn in one week
you earn a allowance of $5 each week You earn additional money m for helping others in the neighborhood 
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Pre Algebra

11/29/16

whic of the following is a linear function rule
y=4x2 y=x-7 y=-[x/9] y=12+2/x
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Pre Algebra

11/27/16

explain how to use the table to determine the rate of change
customers:20 30  40 CD's sold: 24  36 48
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Pre Algebra

11/27/16

Find the rate of change for the data in the tables a unit rate. part 2 what does the rate of change mean in this exercise.
hours:        3             5        7    earnings: 20.25    33.75     47.25      
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Pre Algebra

11/27/16

what is the rate of change of the linear function,y=-1/7x+4
thanks in advance
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Pre Algebra

11/27/16

each part of a linear function plays a role in how its a graph looks.what role does the rate of change play?
 thank you in advance
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Pre Algebra

11/17/16

16:4 (4) what is the answer?
16 : 4 = (4)    and explanation 
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Pre Algebra

10/31/16

Suppose a right triangle has one leg of length 5 cm. The hypotenuse is twice as long as the other leg. Find the missing two sides of the right triangle.
I don't know how to find the answer.
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Pre Algebra

10/26/16

A rectangle is six units wide and X -8 units long. It has the same area as a triangle with a height of seven units and a base of X -3 units.
What is the area of the rectangle?
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Pre Algebra

10/24/16

Four minus the product of three and a number x.
solve the word problem
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Pre Algebra

10/22/16

solvin word proportions
The governor of state A earns 54,130 more than governor of state B.  If the total of their salaries is 290, 100, find the salaries of each
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Pre Algebra

10/21/16

seth earns $152 in 4 days.At that rate,how many days will it take for him to $532?
What is the answer and the set up for it
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Pre Algebra

10/13/16

a hallway measures 62ft by 7 ft. find the cost to carpet the hallway with carpeting that cost $9 per square foot.
a hallway measures 62ft by 7 ft. find the cost to carpet tge hallway with carpeting that cost $9 per square foot. 
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09/27/16

How do I factor out the coefficient of 2.4n + 9.6? This gets confusing to me.
HOW? This stuff is confusing 
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Pre Algebra

09/18/16

twelve less than one fifth of a number is -7
twelve less than the fifth of a number is -7                  
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Pre Algebra

09/16/16

clara and toby are telemarkers. yesterday, clara rweached 4 people in 10 calls, while Toby reached 3 people in 8 phone calls. If they continue at those reates,
clara and toby are telemarkers. yesterday, clara rweached 4 people in 10 calls, while Toby reached 3 people in 8 phone calls. If they continue at those rates, who will reach more peoples in 40... more
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Pre Algebra

09/11/16

Word Problem
In a mixture of concrete, there are three lb of cement mix for each pound of gravel. If the mixture If the mixture contains a total of 208 lb of these two ingredients, how many pounds of gravel are... more
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Pre Algebra

09/09/16

how many tickets of each type did the school purchase?
An elementary school buys tickets for a field trip to the zoo.  The number of children going on the field trip is 12 times the number of adults.  Tickets for children cost $8 each and tickets for... more
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Pre Algebra

07/18/16

algebra word problems
A box had twice as many grapes as a basket. Once 2 kilograms of grapes were added to the basket, it contained 0.5 kg more than the box. How many kilograms of grapes are in the basket now?
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Pre Algebra

07/18/16

I need help with a word problem involving algebra
A box had twice as many grapes as a basket. Once two kilograms of grapes were added to the basket, it contained 0.5 kg more than the box. How many kilograms of grapes are in the basket now?
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