X= y/21 -2/21
Hope it helps :)
1,000/40= 25 calculators
1,000/40.30=24.8
she can only buy 24 calculators all together
Hello!
First you have to find how many sections of blue ribbon makes 1 meter
1/5 * 5 = 1
It takes 5 sections of blue ribbon to make one meter of blue ribbon
Multiply this by the sections of red ribbon
1/2 * 5 = 2.5
The answer is 2.5 meters of red ribbon for every meter of blue ribbon
Hope this helps!
Factor dem
27=2*2*7
70=2*5*7
common is 2*7=14
GCF=14
