trenny trenny
  • 24-05-2016
  • Mathematics
contestada

what is the value of x in the equation 4x+8y=40 when y=0.8

Respuesta :

helphelp123
helphelp123 helphelp123
  • 24-05-2016
inpus 0.8 for y
4x+8(0.8)=40
4x+6.4=40
minus 6.4 both sides
4x=33.6
divie both sides by 5
x=8.4

x=8.4 when y=0.8
Answer Link
lacifuentes
lacifuentes lacifuentes
  • 24-05-2016
4x+8y=40
4x + (8x.8)= 40
4x + 6.4 = 40 
4x = 33.6
x = 8.4
Answer Link

Otras preguntas

The cover of a photo album has an area of 97.5 square inches. Find it's area in square centimeters. (1 cm = 0.39 in)
41 ten thousands in standard form
What is negative five over eight -5/8 b = 10
Who was the sender and receiver in the Martin Luther King Jr. Speech ?
what is 310,763,136 in word form
Write forty-five thousandths in standard form.
write five diffrent fractions that each simplify to two-fifths
What are wandering or roving tribes called? The answer has to be six letters long.
LEAST COMMON MULTIPLE OF 27 , 48, 66
Without parentheses, the expression 8 plus 30 divided by 2 plus 4 equals 27. Rewrite this expression with parentheses so that it equals 13; then 23