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BartSMP [9]
2 years ago
8

Seven times a number minus the number is -48. Find the number.

Mathematics
2 answers:
mixer [17]2 years ago
7 0

Answer:

x = -8

Step-by-step explanation:

let's say the number is equal to x; seven times the number is 7x;

then it says minus the number so 7x-x is equal to -48

7x-x=-48; combine the x's

6x = -48; now divide by 6

x = -8

jeyben [28]2 years ago
6 0

Answer:

The anwser would be A: -8

Step-by-step explanation:

7 x -8 = -56

-56 - (-8) = -48

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For what value of k does the equation 6(x + 1) + 2 = 3(k5x + 1) + 3 have no solution?
NARA [144]

Answer:

k = (6/15)

Step-by-step explanation:

The equation is:

6*(x + 1) + 2 = 3*(k*5*x + 1) + 3

To have no solutions, we need to have something like:

x + 7 = x + 4

where we can remove x in both sides and end with

7 = 4

So this equation is false, meaning that there is no value of x such that this equation is true, then the equation has no solutions.

First, let's try to simplify our equation:

6*(x + 1) + 2 = 3*(k*5*x + 1) + 3

6*x + 6 + 2 = 3*k*5*x + 3*1 + 3

6*x + 8 = 15*k*x + 6

if 15*k = 6, then the system clerly has no solution.

then:

k = 6/15

then we get:

6*x + 8 = (6/15)*15*x + 6

6*x + 8 = 6*x + 6

8 = 6

The system has no solutions.

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2 years ago
the penguin nursery is open two times a day 2/3 hour at noon and 5/12 hour in the afternoon.How much time is the penguin nursery
KonstantinChe [14]
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2 years ago
How do I do this problem
STatiana [176]

Answer:

shape one would have to move 8 units to the right and 5 units down and then flip

i hope this helped you to understand more

Step-by-step explanation:

3 0
3 years ago
What does X equal??<br> Help quick
vagabundo [1.1K]
Correct Answer: x=17
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A chemist is using 381 milliliters of a solution of acid and water. If 17.4% of the solution is acid, how many milliliters of ac
Romashka-Z-Leto [24]

Answer:

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Step-by-step explanation:

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  0.174 × 381 mL = 66.3 mL

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