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alexdok [17]
3 years ago
8

Solve 3(x−5) = 9. x = −3 x = 2 x = 7 x = 8 (this is the answer)

Mathematics
1 answer:
Mariulka [41]3 years ago
8 0

Answer:

x = 8

Step-by-step explanation:

3(x−5) = 9   (by PEDMAS, distribute 3 into parentheses by distributive property)

x(3)−5(3) = 9

3x - 15 = 9   (add 15 to both sides)

3x = 9 + 15

3x = 24   (divide both sides by 3)

x = 24/3

x = 8

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Philippa took out a $860 discounted loan for a period of m months at a simple interest rate of 6%. The amount she actually recei
jok3333 [9.3K]

Answer:

m = 16.25 months

Step-by-step explanation:

To find the value for m, we first have to consider the formula for calculating simple interest.

The formula that we generally use is:

I = Prt

Now we have to find the value for t as it is not given.

We now define the different variables that we do have.

P = 860

I = 838.50

r = 6% or 0.06

t = ?

First we substitute the value that we do have in the formula.

838.50 = 860 (0.06) (t)

838.50 = 51.6 (t)

838.50 = 51.6t

Now we have to divide both sides by 51.6 to find the value of t.

\dfrac{838.50}{51.6}=\dfrac{51.6t}{51.6}

t = 16.25

Now that we have all the values, we can check if the number months is correct by doing the formula again.

I = Prt

I = 860 (0.06)(16.25)

I = 860 (0.975)

I = 838.50

4 0
3 years ago
Read 2 more answers
Another algebra question I need help with
zzz [600]
7x -7/2 y = -49
7/2 y = 7x + 49
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x - intercept : 2x + 14 = 0 so x = -7

answer is C.
x - intercept : -7
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How to identify LCD on fractions
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Find the distance between the two points an the midpoint of the line segment joining them. (9, 7) and (0, -33) the distance betw
german

Answer:

Step-by-step explanation:

The formula for determining the distance between two points on a straight line is expressed as

Distance = √(x2 - x1)² + (y2 - y1)²

Where

x2 represents final value of x on the horizontal axis

x1 represents initial value of x on the horizontal axis.

y2 represents final value of y on the vertical axis.

y1 represents initial value of y on the vertical axis.

From the points given,

x2 = 0

x1 = 9

y2 = - 33

y1 = 7

Therefore,

Distance = √(0 - 9)² + (- 33 - 7)²

Distance = √(- 9² + (- 40)² = √(81 + 1600) = √1681

Distance = 41

The formula determining the midpoint of a line is expressed as

[(x1 + x2)/2 , (y1 + y2)/2]

[(9 + 0) , (7 - 33)]

= (9, - 26]

6 0
3 years ago
-7/9x9/8 what is the answer
marishachu [46]
Here is what I got
Anyways I have to write 20 words so here they r

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