Answer:
decrease of 64.3%
Step-by-step explanation:
Percentage change can be calculated from ...
pct change = ((new value)/(original value) -1) × 100%
= (50/140 -1) × 100%
= (-9/14)×100% = -64 2/7% ≈ -64.3%
The price of crude fell about 64.3% in that period.
Answer:
$11.25
Step-by-step explanation:
You give the farmer $60.00 and you subtract $48.75 = $11.25
Therefore the farmer gave you $1.00 more.
Answer:
Option D.
Step-by-step explanation:
we have
-----> equation A
-----> equation B
Solve the system by elimination
Multiply both sides equation A by -1
-----> equation C
Adds equation C and equation B
<em>Find the value of x</em>
substitute the value of y in either equation
The solution is the point (-1,2)
In this problem Option A,B and C are correct
The option D not result in a system with a pair of opposite terms
because
Multiply both sides of equation B by -3
-----> equation C
Multiply both sides of equation A by 5
----> equation D
so
equation C and equation D not have a pair of opposite terms
Answer:
16 groups
Step-by-step explanation:
Add all the people up then divided it by 8 so now it will be 8 people in each group and there will be a total of 16 groups
30+32+29+28+9=128/8=16
Answer:
120
Step-by-step explanation:
No of math books = 4
No of History books = 7
Since no two math books are next to each other, we can say each math book is sandwiched between two history books like
H⇔M⇔H
We can assume that this there books in system above is binded together, thus we will have
3 binded combinations H⇔M⇔H
1 single Math book M
1 single History book H
No of possible arrangements = (3+1+1)! =5! = 5 x 4 x 3 x 2 x 1 = 120
