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madreJ [45]
3 years ago
5

2.Solve -75 = -25a. A. 3 B. -100 c. -50

Mathematics
1 answer:
Step2247 [10]3 years ago
5 0

Answer:

A

Step-by-step explanation:

-75=-25a

Divide both sides by -3:

3=a

a=3

The answer is choice A

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Factor 65x^2+212x-133 completely
worty [1.4K]
65x^2 + 212x - 133
you have to use the quadratic formula 
x=( -b +/- √b²-4ac) / 2a
a is 65
b is 212
c is 133
because the first value is squared you will have 2 answers
x= 7/13
x= - 19/5

4 0
3 years ago
30 is 12% of what numbr
ruslelena [56]

30 IS 12% OF 250

HOPE IT HELPS! :D

5 0
3 years ago
The cost of 90 kg of rice is 4500. what is the cost of 2 quintal of rice?​
gayaneshka [121]

Answer:

The cost of 2 quintal of rice is $10,000.

Step-by-step explanation:

To determine the cost of 2 quintals of rice, knowing that 90 kilos of said product is worth $ 4,500, it is first necessary to establish the equivalence between quintals and kilograms. In this regard, a quintal is equivalent to 100 kilograms, so 2 quintals are equivalent to 200 kilos.

Now, to determine the cost per kilogram of rice, the following calculation is required:

4,500 / 90 = X

50 = X

Therefore, 1 kilogram of rice costs $ 50. Thus, since 200 x 50 equals 10,000, 2 quintals of rice will cost $ 10,000.

5 0
3 years ago
SIMPLIFY<br> 7x to the power of 2 + 6x + 9x to the power of 2 - 5x
Marizza181 [45]
7x^2+6x+9x^2-5x=(7x^2+9x^2)+(6x-5x)=16x^2+x
4 0
3 years ago
Any help towards finding out Part B and C would be greatly appreciated!
Alika [10]
Part B: I think the relation that has the greater value when x=6 is f(x) = 7x - 15 because:

7(6) - 15 = 27 which is greater than the output of 14.

Part C: the value of x would be 3 because:

f(x) = 7x - 15
6 = 7x - 15
+ 15 +15
21 = 7x
3 = x

Sorry if any of this is wrong.
6 0
3 years ago
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