Question

4 pencils and 5 pens cost $2.00. 3 pencils and 4 pens cost $1.58. find the cost of a pencil and the cost of a pen

Answer 1

using the same as the last ?

Answer 2

let cost of each pencil iy x$ and that of each pen is Y$
4x+5y=2
3x+4y=1.58
solve this two equations.....u will get x and y

Answer 3

from 1st equation x=(2-5y)/4
putting it in the second equation...
3(2-5y)/4+4y=1.58
6-15y+16y=6.32
y=.32$
and x=(2-1.6)/4=.1

Answer 4

i think y=.32 not .032

Answer 5

yes yes mistake, it is .32, sorry. and thanks dipank, y=8/25 = 0.32

Answer 6

what about the previous question chloebella

Answer 7

together a skateboard and a bicycle cost $199.00. the skateboard costs $51.00 less than the bicycle. how much does each cost?????

Answer 8

let skate..is x and bicycle is x+51$
so x+x+51=199
2x=148
x=74
bicycle=125

Answer 9

2 cars leave town at the same time going in the same direction. 1 travels 55mi/h and the other travels 48mi/h. in how many hours will they be 49 miles aprt?????

Answer 10

in one hour they are apart (55-48)=7 mile
so they will be apart 49 mile in 49/7=7 hour

Answer 11

ty

Answer 12

if u have asked this questions separately then i could have got 4 medals ....

Answer 13

sorry i will do that