Seudónimo Seudónimo

02-09-2016
Mathematics

contestada

two numbers are in a ratio of 7:4. their sum is 220 find the bigger number

Respuesta :

dalendrk dalendrk

02-09-2016

7 : 4 ⇒ 7x : 4x

7x + 4x = 220
11x = 220 |divide both sides by 11
x = 20

7x = 7 · 20 = 140

Answer: The bigger number is 140.

Answer Link

Otras preguntas

plates was 26.5kV, find the magnitude of the electric field (in V/m ) in the region between the plates. V/m

Calcule a resolução para dois picos cromatográficos que têm tempos de retenção de 17,5 e 19,55 min e larguras de pico de 130 e 182 s, respetivamente. Será esta

One barrier to entry for this market structure is due to firms with brand names built up by years of advertising, new frms find it difficult to compete with the

Ashley takes a $114,000 mortgage for 15 years and makes a monthly payment of $848.97. approximately what percent of the total loan does she pay back in interest

Find out the approximate frequency at which maximum intensity is detected by observer O, if velocity of sound = 340 m/s and frequency range of source is 2000 Hz

I need an expository essay addressing the following promot :your Job is not just to do what your parents say ,what your teachers say ,or what society says,but

Write an academic report exploring the role of an expert in Cyber Security. What qualifications or skills should they have?

The side of a cube is decreased at the rate of 0.04 cm/sec. The rate of decrease in the volume of the cube when the side is 10 cm is:a) 2 cubic cm/secb) 10 cubi

Assuming x, y, and z are functions of t with z = x + y³, find dz/dt when dx/dt = -1, dy/dt = 5, and y = 2.

A rail gun is a device that consists of two parallel metallic rails of length 0.8 m. At one end the rails are connected via power source. A Copper wire (Pcu = 8