Initial cost = $126 Final cost = $150 Then Amount of change = (150 - 126) dollars = 24 dollars Then Percentage change = (24/126) * 100 = 2400/126 percent = 19.05 percent So from the above deduction we can easily conclude that the percentage change is 19.05%. I hope the procedure is simple enough for you to easily understand. You can generally use this method for solving similar kind of problems in future without requiring any kind of help from outside.
$150 - $126= $24
$24/ $126* (100/100)= 19.05%
The percent change is 19.05%.
Please help with hold page extra points given
Answers
2. 300 mph or nautical miles or Knots 3. 77 miles 4. 150 minutes 5. 270 miles 6. 20 yd per min. 7. 1200 miles 8. 14 ft. per min. 9. 2 hours. 10. 3 hours max. (unless u count traffic) 11. No, it will take 3 hours and 30 minutes.
easy, if you use your head and a shortcut
d=rt d/r=t d/t=r basically if given 2 of the, you can find the rest with d=rt t=d/r r=d/t
2. speed=r d=3600m t=12 r=d/t r=3600m/12m r=300m/min rate=300m per minute
3. the time is 7 hours speed =11mph=r d=rt d=7h times 11mph d=77miles
4. given d=300cm r=2cmpermin t=d/r t=300cm/2cmpermin t=150min
5. r=45mph t=6h d=rt d=45mph times 6h d=270miles
6. d=400yd t=20min r=d/t r=400yd/20min r=20yd/min r=20yards per minute
7. r=120mph t=10h d=rt d=120mph times 10h d=1200miles
8. d=700ft t=50min r=d/t r=700ft/50min r=14ft/min r=14 feet per minute
11. 2 ways 1. find how far it travels in 4 hours 2. find how long it will take both easy, I willl do first
in 4 hours d=rt d=4h times 65mph d=260 miles 260mi>230mi yes
What is 5d=470 and what is 8a=47
Answers
5d=470:
in this case we have to divide both sides by 5:
d=94
8a=47:
in this case we have to divide both sides by 8:
a=5.875
as a general rule, if you want to find out a value of a in ab=c
you have to divide both sides of the equation by b (if it's not zero); then you will have left:
a=c/b
and if you calculate c/b, this will give you the answer
What number should be added to the expression to turn it into a perfect square trinomial x^2+2x
Answers
kinda like completing the square if you have ax^2+bx+c a=1 for ease
take b and halve it then square that then make c= that
x^2+2x+c a=1 good b=2 2/2=1 1^2=1 x^2+2x+1 (x+1)^2
the number 1 should be added
Solutions
A Perfect Square Trinomial is the product of two binomials. Both the binomials are same. When you multiply an algebraic expression with two terms to itself, you will get a three-term expression called a perfect square trinomial. A perfect square trinomial is one that factors into two identical factors. The general forms of perfect square trinomial are =
Take the variable b and half it then square that to make c = number
x²+2x+c
variable α = 1
variable β = 2
2 ÷ 2=1
1² = 1
x²+2x+1
(x+1)²
In conclusion the number (1) should be added to the expression to turn it into a perfect square trinomial .
What's the whole number of 4 / 2
Answers
4/2=2/1=2, a whole number.
2 4/2=2 the whole number is 4
Lauren's SUV was detected exceeding the posted speed limit of 60 kilometers per hour, how many kilometers per hour would she have beeen traveling over the limit is she had covered the distance of 10 kilometers in 5 minutes
Answers
She would have been covering 20km for ten minutes multiply that by 6 so she was going 120km/hr so she is 60 km over the speed limit