Answer:
<h2>10.7%</h2>
Step-by-step explanation:
Step one:
given
expected weight= 28pounds
Actual weight= 25 pound
Required:
percent error
δ= percent error
vA =actual value observed
vE =expected value
δ=25-28/28*100
δ=-3/28*100
δ=0.107*100
δ=10.7%
The percent error is 10.7%
Answer:
no, no, yes, no
Step-by-step explanation:
3x + 7y = 17
1. 3(5) + 7(3) = 17 ---> 15 + 21 = 17 (false)
2. 3(-8) + 7(-2) = 17 ---> -27 + -14 = 17 (false)
3. 3(-6) + 7(5) = 17 ---> -18 + 35 17 (true)
4. 3(8) + 7(-1) = 17 ---> 18 + -7 = 11 (false)
Answer:
90 : 54 : 36
Step-by-step explanation:
Add the ratios: 5 + 3 + 2 = 10
Divide 180 kg by 10: 180 ÷ 10 = 18
Multiply each number of the ratio by 18:
5 × 18 : 3 × 18 : 2 × 18
⇒ 90 : 54 : 36
Answer:
900 people preferred hamburgers.
Step-by-step explanation:
540/x=60/100
cross multiply
60x=54,000 then
60x/60=54,000/60
x=900
so 900 people preferred hamburger