Answer: awwwww so cute ❤️
Hi Bianca :)
Step-by-step explanation:
The starting equation is
100=S+D+K
S is for Sarah, D is for Dave, and K is for Kate
This is what we know:
S=15+D
and
K=D-5
Now that we know how to find the values of everything, we must plug it in.
100=(15+D)+D+(D-5)
Combine like terms.
100=10+3D
Subtract 10 to isolate variable.
90=3D
Divide by 3 to isolate variable.
30=D
Plug in number to find the answers.
Answer:
Sarah worked for 45 hours
Dave worked for 30 hours
Kate worked for 25 hours
Answer:
9.94 kg seed need 1.4 hectare of land
Step-by-step explanation:
Sally has=9.94kg
1 hectar need=7.1 kg
Now,
9.94kg=(9.94/7.1) hectare
=1.4 hectare
so,9.94 kg =1.4 hectare
Take the cost and divide it by the pounds
35.99÷15.6 pounds = 2.307051282
= $2.31 per pound (approximately)