nburgo16 nburgo16

24-03-2017
Mathematics

contestada

What was the original price if after increase by 30% it becomes $520?

Respuesta :

apologiabiology apologiabiology

24-03-2017

100+30=130
130%=520
divide both sides by 13
10%=40
times 10 both sides
100%=400

original price is $400

Answer Link

Otras preguntas

The spread of a virus can be modeled by exponential growth, but its growth is limited by the number of individuals that can be infected. For such situations, th

Which topic is often used as a theme for studying 20th-century world history

Reduction of the number of sets of chromosomes occurs during:

PLS HELP ME. Two solid cylinders with radii 5cm and 10cm and length 7cm and 5cm respectively are melted and recast into a cylindrical disk of thickness 3cm. Cal

in a ___ individuals all have an equal chance of being selected and all samples have an equal chance of being selected?

What's porosity? A. The ability of water to trickle down through soil until it reaches groundwater B. The ease with which water is able to flow from one

coseca/4+cota/2=cota/8-coseca/2

CHOOSE 1 ANSWER:ABCD

According to the Rational Root Theorem, -2/5 is a potential rational root of which function? A. f(x) = 4x4 – 7x2 + x + 25 B. f(x) = 9x4 – 7x2 + x + 10 C. f(x)

factorise 2x(a-2b)+3y(2b-a)