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Alik [6]
3 years ago
12

A is directly proportional to b such that a = 2b. what is a if B =3? Also, what is b if a =7?

Mathematics
2 answers:
Papessa [141]3 years ago
5 0
If b was 3 a will be 6 because 2*3=6
and for the second part b will be 3.5 because 2*3.5=7
slava [35]3 years ago
4 0
See attached

Solve using algebra!

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What is 67 sec and 76 minuts equal to
Readme [11.4K]

Answer:

1 hour and 17 minutes and 7 sec

Step-by-step explanation:

.

6 0
2 years ago
Read 2 more answers
A class of 32 consists of students who either have red or yellow shirts if there are 12 more people with red shirts than there a
natta225 [31]

Answer:

22 kids

Step-by-step explanation:

R (red shirts)

Y (yellow shirts)

R= Y+12 (to make them equal, you need to add 12 to the yellow because it tells you that there are 12 more red shirts than yellow)

R+Y=32 (the amount of students in the class)

Substitute R from the first equation into the second one.

(Y+12) + Y = 32

2Y +12 =32 (subtract 12 from both sides)

2Y =20  (divide by 2 on both sides)

Y=10

Now you know the amount of kids wearing yellow shirts.

Subtract the whole class and the yellow shirts.

32-10= 22

5 0
3 years ago
Pls help I really need it
tangare [24]

Answer:

x = 20

p =54

y= 54

Step-by-step explanation:

2x-4 = 96-3x

5x = 100

x = 20

2x-4 = 40-4 = 36

(180 - (36 x 2))/2

(180-72)/2

108/2

p = y =54

5 0
2 years ago
Please answer this question now
Sloan [31]

Answer:

<h2>             39°</h2>

Step-by-step explanation:

A radius to the tangent point always forms a right angle with the tangent:

m∠XWY = 90°

So:

  90° + 58° + x - 7° = 180°

    141° + x = 180°

        x = 39°

4 0
3 years ago
Lydia spent 4/5 of her money on a mobile phone and 2/3 of the remaining amount on a bag. She had $60 left. How much more money d
KengaRu [80]
The answer is 600 because 1 out 3 is 60 so to find the bag multiply by two while to find 1 out 5 of her monet take 60 times 3 which is 180. 180 times 4 is the money she spent on her mobile phone so take the money spent on her mobile phone(720)minus the amount of money spent on the bag(120)
5 0
2 years ago
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