wmollie3 wmollie3

15-09-2015
Mathematics

contestada

39 less than twice a number is 5 times the sum of a number and two times the number. Find the number

Respuesta :

16-09-2015

[tex]2n - 39 = 5(n + 2n)\\2n - 39 = 5(3n)\\2n - 39 = 15n\\2n = 15n + 39\\-13n = 39\\\\n = -3[/tex]

Answer Link

Otras preguntas

Why did delegates start the preamble with the (We the people)?

At railroad crossings, you must stop at least _____ from the nearest rail if a flagger is warning of an oncoming train.

Starla is making hot cocoa. She plans to multiply the recipe by 4 to make enough hot cocoa for the whole class. If the recipe calls for 1/2 teaspoon vanilla ext

the diagonal of a screen is 152 cm the length measures 132 cm what is the height

How are fiction books arranged in most libraries

At 25°C, a saturated solution of cerium(III) hydroxide (Ce(OH)3) contains 5.1 × 10–6 moles of the compound in one liter of solution. What is the set-up for dete

can someone help me with an american government question asap !!

What divides a line segment into two congruent segments?

The female lion at a zoo weighs 190 more pounds than the female cheetah. Let c represent the weight in pounds of the cheetah. Write an expression that gives the

18% of what number is 220? To solve this problem, you divide 220 by 18 to get about 12.22. True False