Answer:
4r + 15 = -1
Step-by-step explanation:
Answer:
Minutes to make one balloon sculpture = 5 minutes
Balloons are used for one balloon sculpture= 8 balloons
Tomas use balloons = 1.6 per minute
Step-by-step explanation:
a).
180 minutes = 36 sculpture
5 minutes to make a sculpture
b).
288 balloons = 36 sculpture
8 Balloons to make a sculpture
c).
288 Balloons = 180 minutes
1.6 Balloons per minute
Answer:
3.6 hours
Step-by-step explanation:
step 1
we know that
Pipe A fills a tank in 9 hours
so
The 100% of the tank is filled in 9 hours
using proportion
Find out what percentage of the tank is filled in 1 hour
step 2
we know that
Pipe B fills a tank in 6 hours
so
The 100% of the tank is filled in 6 hours
using proportion
Find out what percentage of the tank is filled in 1 hour
step 3
we know that
In one hour the percentage of the tank fill with both pipes is equal to
using proportion
Find out how long it takes to fill the tank 100%.
Answer:
x = 110
Step-by-step explanation:
measure of abd is 35, meaning adb is also 35.
so dab + abd + adb is 180
=> x + 35 + 35 = 180
=> x + 70 = 180
=> x = 180-70
=> x = 110
110 degrees is the value of x.