Last weekend, Erin went skiing at Snowy Peak Mountain. On Saturday, she skied 3 hard slopes and 4 easy slopes. On Sunday, she skied 4 hard slopes and 5 easy slopes. Did Erin ski the same ratio of hard slopes to easy slopes on both days?

no solution

step-by-step explanation:

there is not enough information in the problem to solve.

i believe it is 0.1m because the measurement of 30.4m limits how precise you can be

you can only be as precise as the least precise measurement

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -