jasssminne
jasssminne
12-06-2018
Mathematics
contestada
5x + 2y =20 when x =0.3?
Respuesta :
august1234
august1234
12-06-2018
9.25 I think. Multiply 5 by .3 and subtract that from 20. Divide what you get from the subtraction by 2
Answer Link
Creati
Creati
12-06-2018
Hey there! :)
First, let's substitute x with 0.3, and multiply by 5
0.3 × 5 = 1.5
Here is your new equation:
1.5 + 2y = 20
Subtract 1.5 from 20
20 - 1.5 = 18.5
2y = 18.5
Divide both by 2
2y ÷ 2 = y
18.5 ÷ 2 = 9.25
y = 9.25
Hope this helps
:)
Answer Link
VER TODAS LAS RESPUESTAS ( 76+ )
Otras preguntas
What number multiplied by itself 3 times equals 64
write an expression for triple 3 then add double eight
Why did Jefferson Davis find it necessary to attack Fort Sumter?
Who chose electors prior to 1820, and why did the process change?
what is the median numbers 4,8,10,5,9
what were the effects of manufacturing and capital on the U.S. economy?
State the universal law of gravitation
You are selling lemonade for $1.50, a bag of kettle for for $3, and a hot dog for $2.50 at a fair. Write and simplify an expression for the amount of money you
What three numbers are between .33 and .34?
What is the best order-of-magnitude estimate for 58,100? A.10^3 B.10^4 C.10^5 D.10^6