what is three sevenths of a numberWeegy:
3/10n = 2/7n + 1
21n = 20n + 70
n = 70
Answer: 70 is the number.
3/10(70) = 2/7(70) + 1
21 = 20 + 1
21 = 21 [ http://answers.yahoo.com/question/?qid=20111011014033AARcRwh
] Auto answered|Score 1User:
The width of a rectangle is y feet long. The rectangle is 4 feet longer than it is wide. What is the area of the rectangle?
A rectangle is
a four-sided plane figure with four right angles.
Read more: [www.answers.com/topic/rectangle#ixzz1dojbMeJF
]Auto answered|Score .5382|debnjerry|Points 32092|User:
The length of a rectangle is twice its width. The perimeter is 60 ft. Find its area.
A = 200 ft?Auto answered|Score .5252|debnjerry|Points 32092|User:
Three multiplied by the sum of 4 and a number is the same as 18 more than the number. Find the number.
If n is "the number," which equation could be used to solve for the number?
Five times the sum of a number and 3 is the same as 3 multiplied by 1 less than twice the number What ... off by creating an equation ... [ Therefore, the number is 18. http://wiki.answers.com/Q/Five_times_the_sum_of_a_number_and_3_is_the_same_as_3_multiplied_by_1_less_than_twice_the_number_What_is_the_number
] Auto answered|Score .6656User:
If 9 is subtracted from two-thirds of a number, the result is 7. Find the number.
a.the number is 3 let the unknown number be denoted with 'X'
9 subtracted from two-thirds of a number, the results is 7
therefore equation is ; 9 - 2/3X = 7
then multiply the whole equation by 3 (i.e. [ the denominator)
9 x 3 - 2/3X x 3 = 7 x 3
27 - 2X = 21
-2X = 21 - 27
-2X = -6
X = -6 / -2 (minus sign gets cancelled)
X = 3
therefore the unknown numder denoted with 'X' is 3
9 - 2/3 x 3 = 7
9 - 2 = 7
7 = 7 ] Auto answered|Score 1|bikbak04|Points 942|Note:
I'm sorry that that wasn't a good answer. Please hold on while I contact an expert.Weegy:
2/3 x - 9 = 7, 2/3 x = 16, x = 24.Expert answered|eturker|Points 2049|
All Categories|No Subcategories|Expert answered|Rating 0| 6/7/2012 3:10:37 PM