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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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Plz help with numbers 3 and 4 !!
goblinko [34]

Answer:

3. opposite

30°

4.  50° + 30° + 2x = 180°

80° + 2x = 180°

2x = 100°

4 0
3 years ago
Read 2 more answers
I need help with this I don’t understand what it’s asking.
DanielleElmas [232]

Answer:

20

Step-by-step explanation:

Because it is a square table, that means all the sides are even. And to find the area, we do Height * Base. But again, because they're even, we would just need to find 2 numbers that multiply to be 400. And that number, is 20. 20 * 20 = 400. So the length of one side is 20.

5 0
3 years ago
-2.1b +5.3= b -- 3.1b + 5.3<br><br> does is have one solution or infinitely many solutions ? Why ?
pychu [463]

Answer: infinitely many solutions.

Step-by-step explanation:

Ok, our equation is:

-2.1*b + 5.3 = b - 3.1*b + 5.3

now, simplifyng the right side, we have:

b - 3.1*b + 5.3 = (1 - 3.1)*b + 5.3 = -2.1*b + 5.3

Then our initial expression is:

-2.1*b + 5.3 = -2.1*b + 5.3

So in both sides of the equality we have the exact same thing, so this is a trivial equality.

This means that the equality will remain true for any value of b, which means that we have infinitely many solutions.

6 0
3 years ago
Can someone simplify
madam [21]

APP IT will HELP SIDJIDNUDNUD

8 0
3 years ago
Theresa buys 62 stickers. She gives 6 stickers to her little sister. Theresa then splits the remaining stickers evenly across 8
Alja [10]

Answer:

7 stickers on each page.

Step-by-step explanation:

We start with 62 stickers.

Then we give 6 to the little sister, so we subtract 6 from 62.

62-6=56

Then we divide the remaining 56 stickers evenly across 8 pages.

56/8=7

7 stickers on each page.

5 0
3 years ago
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