Given
-11.2+4(2.1+q) = -0.8
Take -11.2 to the right hand side of the equation (sign will change when we move it to the other side)
∴ 4(2.1+q) = -0.8 + 11.2
Simply both sides
∴ 4*2.1 + 4*q = 11.2-0.8
∴ 8.4 + 4q = 10.4
Take 8.4 to the right hand side
∴ 4q = 10.4 - 8.4
∴ 4q = 2
∴ q = 2/4
∴ q = 1/2 = 0.5
Answer:
<h2>x = - 20</h2>
Step-by-step explanation:
<u>Move 3x to the other side of the equation</u>
<u>Move -14 to the right side of the equation.</u>
Multiply both sides by - 1
We have the final answer as
<h3>x = - 20</h3>
Hope this helps you
It went up 125% or 25 percent more
Answer:
x=4.8
Step-by-step explanation:
AE.EC=DE.EB
6×8=10×x
48=10x
x=4.8
The probability that at least one of the calculators is defective is : 0.725
<h3>What is probability?</h3>
Probability is the likelihood of an event happening or not.
if there is certainty that the event would happen probability is 1.
Analysis:
probability = required outcome/possible outcome
for 33 good calculators and 12 defective calculators, total calculators = 45
4 calculators were chosen, possible outcome = 45C4 = 148995
Required outcome = 33C3 . 12C1 + 33C2 . 12C2 + 33C1 . 12C3 + 33C0 . 12C4
= 65472 + 34848 + 7260 + 495 = 108075
Probability = 108075/148995 = 0.725
Learn more about Probability: brainly.com/question/25870256
#SPJ1
