Sarah is twice as old as John. Six years ago, Sarah was 4 times as old as John was then. How old is John now?
Answers
Answer 1
Answer:
%5C%20%5C%20%5C%20%5CRightarrow%5C%20%5C%20%5C%202J-6%3D4J-24%5C%5C%5C%5C2J-4J%3D-24%2B6%5C%5C%5C%5C-2J%3D-18%5C%20%2F%3A(-2)%5C%5C%5C%5CJ%3D9%5C%5C%5C%5CAns.%5C%20Now%5C%20John%5C%20is%5C%209.)
Answer 2
Answer:
S = 2J
S - 6 = 4(J - 6)
S - 6 = 4J - 24
2J - 6 = 4J - 24
-2J = -18
-J = -9
J = 9
18 = 2(9)
12 = 4(9 - 6)
12 = 12!
S - 6 = 4(J - 6)
S - 6 = 4J - 24
2J - 6 = 4J - 24
-2J = -18
-J = -9
J = 9
18 = 2(9)
12 = 4(9 - 6)
12 = 12!
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Answers
I'll tell you the answer but please know mental math strategies.it is very helpful in the future. message me if you need help with mental math
answers from top to bottom
16,7,6,24,2,12,12,9
answers from top to bottom
16,7,6,24,2,12,12,9
Answers
21 -
There are 1000 m in 1 km.
441.96/1000 = 0.44196
0.44196 km
22 -
There are 1000 mg in 1 g.
5700/1000 = 5.7
5.7 g
23 -
There are 1000 mL in 1 L.
0.946 * 1000 = 946
946 mL
24 -
There are 10 mm in 1 cm.
60(10)=600
600/50=12
12 beads
25 -
There are 1000 mL in 1 L.
1500(2)=3000
3000/1000=3
3 L
26 -
There are 100 cm in 1 m.
110(100)=11000
11000-8=10992
10992 cm
There are 1000 m in 1 km.
441.96/1000 = 0.44196
0.44196 km
22 -
There are 1000 mg in 1 g.
5700/1000 = 5.7
5.7 g
23 -
There are 1000 mL in 1 L.
0.946 * 1000 = 946
946 mL
24 -
There are 10 mm in 1 cm.
60(10)=600
600/50=12
12 beads
25 -
There are 1000 mL in 1 L.
1500(2)=3000
3000/1000=3
3 L
26 -
There are 100 cm in 1 m.
110(100)=11000
11000-8=10992
10992 cm
21. 1,000 meters = 1 kilometer
441.96 meters = 0.44196 kilometer
22. 1,000 milligrams=1 gram
5,700 milligrams= 5.7 grams
23. 1 liter = 1,000 milliliters
0.946 liter = 946 milliliters
24. 10 millimeters = 1 centimeter
50 millimeters = 5 centimeters
60/5 = 12 sections between beads
25. 1,000 milliliters = 1 liter
1,500 milliliters = 1.5 liters
double 1,500 milliliters = double 1.5 liters = 3 liters
26. 100 centimeters = 1 meter
8 centimeters = 0.08 meter
Difference = 110 meters - 0.08 meter = 10,992 centimeters
Much better than that . . . How many pygmy pines would it take
to stack up to one redwood ?
110 / 0.08 = 1,375 of them, stacked top to bottom.
You're welcome.
441.96 meters = 0.44196 kilometer
22. 1,000 milligrams=1 gram
5,700 milligrams= 5.7 grams
23. 1 liter = 1,000 milliliters
0.946 liter = 946 milliliters
24. 10 millimeters = 1 centimeter
50 millimeters = 5 centimeters
60/5 = 12 sections between beads
25. 1,000 milliliters = 1 liter
1,500 milliliters = 1.5 liters
double 1,500 milliliters = double 1.5 liters = 3 liters
26. 100 centimeters = 1 meter
8 centimeters = 0.08 meter
Difference = 110 meters - 0.08 meter = 10,992 centimeters
Much better than that . . . How many pygmy pines would it take
to stack up to one redwood ?
110 / 0.08 = 1,375 of them, stacked top to bottom.
You're welcome.
Feeling Really Sad!!!!! Please Help Me!!!!!
Answers
Assuming that the traps stay the same, we know that the number of moths they catch will be relative to the size of the population of moths. From this, we can see that the trend in the population of light moths is a steady decrease from year to year, and the trend in the population of the dark moths is a steady increase over the same time period.
Since the trees have been darkened by industrial pollution (they have black smoke on them), we know that the dark moths camouflage better than the light moths. Because of this, the white moths get eaten by predators more often and their population goes down gradually; the dark moths, however, camouflage easily, and their population goes up since they get eaten less often.
If the environment were cleaned up, the light moths' population would increase (since they camouflage better on clean trees), while the dark moths' population would decrease (since they camouflage better on dirty, polluted trees).
Since the trees have been darkened by industrial pollution (they have black smoke on them), we know that the dark moths camouflage better than the light moths. Because of this, the white moths get eaten by predators more often and their population goes down gradually; the dark moths, however, camouflage easily, and their population goes up since they get eaten less often.
If the environment were cleaned up, the light moths' population would increase (since they camouflage better on clean trees), while the dark moths' population would decrease (since they camouflage better on dirty, polluted trees).
Answers
that means you got 6 right, and since it is out of 10, 60 percent. However, since it was only out of ten your teacher may choose to weigh it differently. But, 6/10 is 60 percent.
ill explain how it is 60%. It is 60% because once you divide 6 by 10 that is 0.6, 0.6 in percentage from is 60%.
Answers
3772 divided by 44 is approximately 85.72 repeat. The 72 at the end is the repeat part
Answers
ball=sphere
Vsphere=pir^3
d/2=r
d=9
9/2=4.5=r
V=pi4.5^3
V=pi91.125
aprox pi=3.141592
V=286.227
round
V=286 in^3
Vsphere=pir^3
d/2=r
d=9
9/2=4.5=r
V=pi4.5^3
V=pi91.125
aprox pi=3.141592
V=286.227
round
V=286 in^3
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