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mina [271]
3 years ago
9

PLZZ HELP MEEEEEEEEEEE

Mathematics
2 answers:
Luba_88 [7]3 years ago
8 0

Answer:

That's not math.....that's what appears to be Chemistry.

Step-by-step explanation:

I don't see a question....

netineya [11]3 years ago
5 0
.............................
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PLEASE HELP
ruslelena [56]

Answer:

Rosaria purchased 50 bracelets and 70 necklaces

Step-by-step explanation:

Let the number of bracelets be b and the number of necklaces be n

b + n = 120 •••••(i)

Secondly;

10b + 11n = 1270 ••••(ii)

Total cost of b bracelets at 10 per 1 is 10b

Total cost of n bracelets at 11 per 1 is 11n

Adding both gives 1270

From i, b = 120-n

Substitute this into ii

10(120-n) + 11n = 1270

1200 - 10n + 11n = 1270

n = 1270-1200

n = 70

b = 120-n

b = 120-70

b = 50

4 0
3 years ago
If f(x) = 3 ^ x - 4 what is f(- 2) ?​
Karolina [17]

Answer:

-35/9

Step-by-step explanation:

(3^-2)-4

1/9-4

-35/9

8 0
2 years ago
What's 1 + 1 = ?<br><br> i forgot-
Scilla [17]

Answer:

2

Step-by-step explanation:

1+1=2

4 0
3 years ago
Read 2 more answers
Which number produces a rational number when added to 0.3?
Afina-wow [57]

Basically you need to find the answer choice that is rational. That way the sum will also be rational.

√7 is irrational as well as π and 0.5050050005...

2/4 is the only rational option.

answer: D

6 0
3 years ago
Helen wrote and solved the equation.
Savatey [412]

Answer:

b, Helen should have added 17 to both sides of the equation

Step-by-step explanation:

just took quiz and got it right so it will help u guys too.!!!

7 0
3 years ago
Read 2 more answers
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