How many groups of 8 in 80?
Answers
Answer 1
Answer:
Isn't that means divide 80 with 8?
the answer is 10
the answer is 10
Answer 2
Answer:
There are 10 groups of 8 in 80. 8 * 10 = 80 Hope this helps!
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Answers
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.
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%.
$24/ $126* (100/100)= 19.05%
The percent change is 19.05%.
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.
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
9. d==1200mi
r=600mph
t=d/r
t=1200mi/600mph
t=2h
t=2 hours
10. speed limit is 65mph=r
d=195miles
t=?
t=d/r
t=195mi/65mph
t=3 hours
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
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
9. d==1200mi
r=600mph
t=d/r
t=1200mi/600mph
t=2h
t=2 hours
10. speed limit is 65mph=r
d=195miles
t=?
t=d/r
t=195mi/65mph
t=3 hours
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
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
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
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
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 =
(ax - b)² = (ax)² - 2axb + b² and (ax + b)²= (ax)² + 2axb + b²
Calculations
αx²+βx+c
The variable α = 1 for ease
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 .
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 =
(ax - b)² = (ax)² - 2axb + b² and (ax + b)²= (ax)² + 2axb + b²
Calculations
αx²+βx+c
The variable α = 1 for ease
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 .
Answers
4/2=2/1=2, a whole number.
2
4/2=2
the whole number is 4
4/2=2
the whole number is 4
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
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