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ss7ja [257]
2 years ago
10

Meredith is 3 times as old as Adam. Six years from now, she will be twice as old as Adam will be then. How old is Adam now

Mathematics
1 answer:
Fantom [35]2 years ago
3 0

Answer:

A=6

Step-by-step explanation:

M=3A

M+6=2(A+6)     M+6=2A+12      M=2A+6

System of equations:

M=3A            Subtract

M=2A+6

0=A-6

A=6

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I need your help again guys!
solmaris [256]

ANSWER

x = 13

EXPLANATION

Use the Pythagoras Theorem to obtain,

{x}^{2}  =  {12}^{2}  +  {5}^{2}

This implies that,

{x}^{2}  = 144 + 25

{x}^{2}  = 169

Take the positive square root of both sides to get,

x =  \sqrt{169}

x = 13

8 0
3 years ago
Read 2 more answers
A train travels 80 mph for 2 hours and then it travels 60 mph for 3 hours . What is its average speed over the entire 5-hour tri
boyakko [2]

Answer:

68 mph

Step-by-step explanation:

80 m/hr * 2 hr = 160 miles

60 m/hr * 3 hr = 180 miles

total miles / total time = average speed

340 miles / 5 hr = 68 m p h

3 0
2 years ago
What is the standard form of 5.93-5
vredina [299]
Just subtract the whole numbers, 5.93-5 = 0.93.
4 0
3 years ago
kyle has 105 baseball cards and must give 2/5 of his cards away. how many cards will kyle give away? what fraction of his cards
adelina 88 [10]
He has 3/5 of his cards left because he had 62/105 of his cards and that simplified is 3/5
6 0
3 years ago
If Gina leaves now and drives at 66km/h she will reach Alton just in time for her appointment on the other hand if she has lunch
Stolb23 [73]

Answer:

165km

Step-by-step explanation:

If Gina leaves now and drives at 66km/h she will reach Alton just in time for her appointment

Now:

Distance=Speed X Time

D=66 X t=66t.....(I)

If she leaves in 40 minutes,and she must get there at the same time, her new drive time will be:

t hours - 40 minutes

=(t-40/60)hours=( t-2/3) hours

Her Distance this time

D=90(t-2/3)=90t-60.....(ii)

Since the distance to Alton does not change, we equate (I) and (ii)

66t=90t-60

60=90t-66t

60=24t

t=2.5 hours

From equation (I)

Distance=66t=66X2.5=165km

Distance to Alton is 165km.

3 0
3 years ago
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