linglee92 linglee92

17-08-2020
Mathematics

contestada

Using the cross multiplication method, which of the following is the solution to 21/(x+4) = 7/(x+2)?

Respuesta :

Loulakar Loulakar

17-08-2020

Answer:

Step-by-step explanation:

Hello !

Using the cross multiplication method, which of the following is the solution to 21/(x+4) = 7/(x+2)?

21(x + 2) = 7(x + 4)

21x + 42 = 7x + 28

21x - 7x = 28 - 42

14x = -14

x = -14/14

x = -1

Answer Link

dimovskiivan036 dimovskiivan036

17-08-2020

Answer:

3/(x+2)= x+1

Step-by-step explanation:

21/7=3

x/x= x

4/2=2

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

Dan used 942 units of electricity from July to October. The master reading in July was 32 347 units. B) Each unit costs 14p. How much do 942 units coast?

The function R(x) = 80 + 7.440 âˆš x 0 â‰¤ x â‰¤ 15000 indicates that the monthly revenue R (in thousands of dollars) depends on the amount of dollars x spent

Help me find these angles ASAP

HELP ASAP! I need to complete the table and I don’t know how! Someone explain. (What you need to do is in the pic)

Debt Management Inc. is concerned about the number of 19-year olds getting into early debt. They found that 25% of 19-year olds have credit card debt. A random

Results of 99% confidence intervals are consistent with results of two-sided tests with which significance level? Explain the connection. A 99% confidence i

Farmers producing crops for international trade were dependent upon: A. Transportation routes to other countries. B. Economic conditions in other countries. C.

find the values of a, b and c in the equation below (x^5yz^4)^3/x^3yz= x^a y^b z^c

Please help. I’ll mark you as brainliest if correct!!!!

which of the following is the best choice for presenting the relationship between atomic number and atomic mass?