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Convert Word Problems to Equation, Solve - Math problems.

by Emi
(Palatine, IL, United States)










































1 . Eight Times a number plus 7 is equal to 71. Find that number.

2. four less than twice a number is 28. Find that number.

3. A number is added to 10. Then 4 is subtracted from the sum. The result is 24. Find that number.

4. 7 more than 9 times a number is 106. Find that number.

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Mar 31, 2012
Convert Word Problems to Equation & Solve
by: Staff



Question:

by Emi
(Palatine, IL, United States)


1 . Eight Times a number plus 7 is equal to 71. Find that number.

2. four less than twice a number is 28. Find that number.

3. A number is added to 10. Then 4 is subtracted from the sum. The result is 24. Find that number.

4. 7 more than 9 times a number is 106. Find that number.



Answer:

1 . Eight Times a number plus 7 is equal to 71. Find that number.

Eight Times: 8*

a number: x

plus 7: +7

equal to 71: = 71



8*x + 7 = 71

8*x + 7 - 7 = 71 - 7

8*x + 0 = 71 - 7

8*x = 71 - 7

8*x = 64

8*x/8 = 64/8

x*(8/8) = 64/8

x*(1) = 64/8

x = 64/8

x = 8

>>> the number is: x = 8




2. four less than twice a number is 28. Find that number.

four less: - 4

twice a number: 2*x

is 28: = 28

2*x - 4 = 28

2*x - 4 + 4 = 28 + 4

2*x + 0 = 28 + 4

2*x = 28 + 4

2*x = 32

2*x/2 = 32/2

x*(2/2) = 32/2

x*(1) = 32/2

x = 32/2

x = 16

>>> the number is: x = 16



3. A number is added to 10. Then 4 is subtracted from the sum. The result is 24. Find that number.

A number: x

is added to 10: + 10

4 is subtracted from the sum: - 4

result is 24: = 24



x + 10 - 4 = 24

x + 6 = 24


x + 6 - 6 = 24 - 6

x + 0 = 24 – 6

x = 24 - 6

x = 18

>>> the number is: x = 18



4. 7 more than 9 times a number is 106. Find that number.

7 more: + 7

9 times a number: 9*x

is 106: = 106


9*x + 7 = 106

9*x + 7 - 7 = 106 - 7

9*x + 0 = 106 - 7

9*x = 106 – 7

9*x = 99

9*x/9 = 99/9

x*(9/9) = 99/9

x*(1) = 99/9

x = 99/9

x = 11

>>> the number is: x = 11






Thanks for writing.

Staff
www.solving-math-problems.com



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help[ NEW
by: Anonymous

eight times a number plus 5 times another number is -13. the sum of the two numbers is 1.

Jan 11, 2021
Algebra NEW
by: unknown

The sum of Robert's age and Daniel's age is 40. If Robert is 22 years old, how old is Daniel.

Jan 13, 2021
solve asap NEW
by: Anonymous

write an expression equivalent to 6-4(3-6m)+12m that is the product of two factors

Jan 15, 2021
Help
by: Anonymous

In Alan's class, 15 students play in the local soccer league. They make up 6% of the league. How many students are in the league?

Jan 18, 2021
pls help NEW
by: Anonymous

thirteen less than a number is eighteen

Jan 18, 2021
h NEW
by: Anonymous

the sum of two numbers is 60. the larger number is thrice the smaller numbers. find the numbers.

Jan 21, 2021
plz solve this
by: astrid tha vampire girl

Maggie buys a jar of dip for $3.50, three bags of chips for $4.00 each, and two packages of cookies for $3.00 each. How much does Sam pay in all?

Jan 21, 2021
Solve this for me NEW
by: Anonymous

At a school picnic 15 sandwiches are provided for 8 children. How many sandwiches are needed for 56 children?

Jan 21, 2021
Help me please! <3 NEW
by: Naruto Uzumaki

z subtracted from 172 is 253

Jan 22, 2021
Convert NEW
by: Anonymous

Mary's father is four times as old as Mary. Five years ago he was seven times as old. How old each now?

Jan 22, 2021
Word problem NEW
by: Anonymous

Five less than the product of 8 and a number is 2

Jan 29, 2021
Five less than a number is less than four times the same number plus 7 NEW
by: Anonymous

Five less than a number is less than four times the same number plus 7

Jan 29, 2021
help NEW
by: Anonymous

It costs $90. She has already saved $23. How much more does she need to save?

Feb 01, 2021
i need help NEW
by: kehaulani

the total of 150 and m is equal to 22

Feb 02, 2021
help me NEW
by: Anonymous

suppose that the generator supplies 2kw to an external load gets an input of 2.75 hp, how much power does it deliver?

Feb 08, 2021
Equation NEW
by: Anonymous

The area A of its triangle is proportional to its height K

Feb 10, 2021
story problem NEW
by: Anonymous

Kayden wants to ride his bicycle 29.5 miles this week. He has already ridden 13 miles. If he rides for 3 more days, write and solve an equation which can be used to determine mm, the average number of miles he would have to ride each day to meet his goal.

Feb 11, 2021
I need help solving this NEW
by: Anonymous

Seven years ago, the difference between the age of you and your mother was X. Four years from now, your mother will be three years greater than twice as old as you will be, you will always be five years minus half her age 7 years ago.

Feb 11, 2021
do this word problem NEW
by: Anonymous

Vince has a dog washing business. he washed 8 dogs and earned a total of $119.92. how much does he charge per dog?

Feb 15, 2021
word problem NEW
by: Anonymous

The square root of a number increased by 9 is 27. find the number​

Feb 18, 2021
I need help NEW
by: Penelope

At a basketball​ game,a team made 56 successful shots. They were a combination of​ 1- and​ 2-point shots. The team scored 96 points in all. Write and solve a system of equations to find the number of each type of shot.

Feb 22, 2021
Inequality
by: Anonymous

It cost php. 3.00 to make a pan de sal amd php. 5.00 to make a pan de coco. If production must not exceed to php. 120.00 per day, write an inequality that showa the possible combinations of pan de sal amd pan de coco that can be made

Feb 22, 2021
what is the equation for this NEW
by: Anonymous

The class of 30 students was split into six groups.

Feb 23, 2021
NEED HELP ASAP NEW
by: Anonymous

The length of a rectangle is 4 m more than twice the width. The perimeter is 74 m. What is the length and width of this rectangle? Write an equation to represent the information
given and use algebraic methods to solve it. Use proper word problem format.

Feb 24, 2021
linear
by: Anonymous

Edward and Alphonse were saving their allowance to buy a special gift for their parents’ wedding anniversary. Edward’s savings is 150 more than twice the value of Alphonse’s savings. If together they had 4,650, how much were their individual savings?

Feb 25, 2021
hyperbola NEW
by: Anonymous

Two microphones that are 10 kilometers apart register an explosion. The signal is received by the first microphone 3 seconds prior to the second microphone. Determine the potential locations of the explosion relative to the position of the microphones, assuming the echo ravels at 1.2 kilometers per second.

Feb 25, 2021
mathbit NEW
by: Anonymous

a number is multiplied by 4 and 7 is added to it. the result is the same as multiplying the number by 6 and subtracting 5 from it. write down an equation for the unknown number

Feb 25, 2021
Convert Word Problems to Equation NEW
by: js9

1.Brady had $45. He wanted to buy some comic books at a comic convention. The books were $4 each and it was $5 for a ticket to get in the convention. How many comic books could he buy?
2.Eileen was baking muffins. She needed 2.5 cups of flour for each batch of 12. She had 15 cups of flour. How many muffins could she make? (hint: figure out how many batches she can make, then how many muffins)
3.Jeremy walks 2.7km per day walking to and from school. He wants to know how many days it will take for him to walk 200km. Will he walk 200km during a normal school year?

Mar 01, 2021
new NEW
by: Anonymous

Evaluate two times a number x plus 2 less than thrice that same number if the value of the number x is 10.

Mar 02, 2021
Math NEW
by: Anonymous

find the number such that 4 times the cube of the sum of the number and 2 is 8

Mar 02, 2021
the difference between x and y is at least 10 NEW
by: Anonymous

the difference between x and y is at least 10

Mar 04, 2021
A number less its cube is zero NEW
by: Anonymous

A number less its cube is zero

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