28-10-2014
Mathematics

Answered

What is the value of x in the equation 4x + 8y = 40, when y = 0.8?

4.6
8.4
10
12

Answer :

ollieboyne ollieboyne

28-10-2014

y   x
0.8 8.4
4.6 0.8
8.4   -6.8
10   -10
12   -14

Answer Link

28-10-2014

4x + 8y = 40

When y = 0,8 :

4x + 8*0,8 = 40
4x + 6,4 = 40
4x = 40 - 6,4
4x = 33,6
x = 33,6/4
x = 8,4

Answer : 8,4

Answer Link

Other Questions

The average January surface water temperatures (°C) of Lake Michigan from 2000 to 2009 were 5.07, 3.57, 5.32, 3.19, 3.49, 4.25, 4.76, 5.19, 3.94, and 4.34. The

Which are real zeros of this function?[tex]\[ x^3 + 2x^2 - 9x - 18 \][/tex]A. [tex]\(1, 2, 3\)[/tex] B. [tex]\(3, -3, 2\)[/tex] C. [tex]\(2, 3, -6\)[/tex] D.

Question 9 of 10Which choice is equivalent to the fraction below when [tex]$x$[/tex] is an appropriate value? Hint: Rationalize the denominator and simplify.[te

Look at page 2 of the Article. Which sentences describe the FAA regulations passed in 2013? Drag three correct answers into the box.

Type the correct answer in each box.Regina used her past health history and information about her doctor visits to create this table to compare health costs wit

Type the correct answer in each box.Solve the problems. Express your answers to the correct number of significant figures.[tex]\[ \begin{array}{l} \frac{2.31}{0

Further, the content in this module will help you achieve the following learning objectives: Discuss the strategies used to conduct systematic searches on PICO

Let f(z) = 256+z a. Use the binomial series to write f as a power series involving binomial coefficients. (Note that the index variable of the summation is n,

La tubería de un edificio, en la planta baja, transporta agua a una velocidad de [tex]$4 \, m/s$[/tex] y una presión manométrica de [tex]$34 \, kPa$[/tex]. ¿Con

Read the lines from "Sonnet 100" by William Shakespeare:"Where art thou, Muse, that thou forget'st so long To speak of that which gives thee all thy might? Sp

What is the perimeter of a 4' square?

What is the inverse function of d(x)= 2x-4

Lee needed to make drapes the length from the floor to the top of the window. The wall beneath the window had the height of 2 2/3 feet and the height of just th

Peter sells cards in packs of 12 and envelopes in packs of 27. If Martha wants the same number of each, what is the minimum number of cards that she will have t

after raining when do rain drops dry away easily on a cloudy day or on a sunny day? explain

Peter sells cards in packs of 12 and envelopes in packs of 27. If Martha wants the same number of each, what is the minimum number of cards that she will have t

Change the voice into passive:- 1) The teacher told us to take the book2) We took the grammar note3) We learn grammar 4) I love the subject very much5) We enjoy

A candle manufacturer sells cylindrical candles in sets of three. Each candle in the set is a different size. The smallest candle has a radius of 0.5 inches and

A(-3,2) B(5,-4) midpoint is (1,-1) Use the midpoint formula to find endpoint C, such that B is the midpoint of AC. HELPP PLEASE.

Solve the equation. X^2-6x+6=0