Answer:
r = <u>26</u>
Step-by-step explanation:
![30r+(-20)=760\\30r-20=760\\30r=780\\r=26](https://tex.z-dn.net/?f=30r%2B%28-20%29%3D760%5C%5C30r-20%3D760%5C%5C30r%3D780%5C%5Cr%3D26)
The base-10 value of 10510 is equal to base-2 value of 11010012. Brainliest
First find the common denominator
5/8=25/40
2/5=16/40
3/4=30/40
Next you can cross multiply
25/40=x/10 pounds
16/40=x/10 pounds
30/40=x/10 pounds
First
25(10)/40= 6.25 pounds
16(10)/40= 4pounds
30(10)/40= 7.5 pounds
These are the amounts that were left in the bag
10-6.25=3.75
10-4=6
10-7.5=2.5
3.75+6+2.5= 12.25
All together they put 12.25 pounds of soil in the flower bed
N=11 because 4+10= 14 and 25-14 = 11