spicytaco spicytaco

24-03-2015
Mathematics

contestada

help
What is the solution to the equation?

5(8 + 7) = 5 • x + 5 • 7

A.
x = 1

B.
x = 5

C.
x = 7

D.
x = 8

Respuesta :

konrad509 konrad509

24-03-2015

[tex]5(8+7)=5\cdot x+5\cdot7\\ 5\cdot15=5x+35\\ 75=5x+35\\ 5x=40\\ x=8 \Rightarrow D[/tex]

Answer Link

Otras preguntas

Which logarithmic equations is equivalent to eight squared equals 64

i need help plz !!!!!!

Groups perform better than individuals on a wide range of demonstrable tasks. what is a key reason why groups outperform individuals faced with the same task? s

The density of dry air at 20oC is 1.20 g L .

Order these numbers from least to greatest. 9.4061 , 9.07 , 9.007 , 9.4

Sarah solves the equation as shown. 2(x + 3) = 8 1. 2x + 6 = 8 2. 2x = 2 3. x = 1 In which step did Sarah use the distributive property? a) 1 b) 2 c) 3

Analyzing an author's use of descriptive words and phrases can reveal what?

Calloway cab company determines its break-even strictly on the basis of cash expenditures related to fixed costs. its total fixed costs are $450,000, but 5 perc

The table shows the battery lives in hours of ten Brand A batteries and ten Brand B batteries. Which would be the best measures of variability to use to compar

When a fault slips and the rock units on either side return to their original shape by generating vibrations, it is called