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SVETLANKA909090 [29]
3 years ago
12

Solve 3(x+1) -2x= -6

Mathematics
1 answer:
s2008m [1.1K]3 years ago
6 0
3(x + 1) - 2x = -6    |use distributive property: a(b + c) = ab + ac

3x + 3 - 2x = -6

x + 3 = -6    |subtract 3 from both sides

x = -9
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What is the algebraic expression for this; the value in cents of an unknown number of dimes
Murrr4er [49]

Answer:

X dimes= 10 * X cents

Step-by-step explanation:

Let us suppose that We have X number of dimes

Now from Monetary rules we know that

1 dime = 10 cents  ............(i)

Now if we will have

2 dime = 20 cents

2 dime = 2 * 10 cents  .....(ii)

from (i) and (ii) we see that if we have X dimes then

X dimes= 10 * X cents

8 0
3 years ago
Molly wants to pursue a graduate degree at New University but is unsure whether to specialize in law or medicine. To help her de
Mashutka [201]

Answer:

Molly's Z score for LSAT

z-score=-2

Molly's Z score for MCAT

z-score=2

Step-by-step explanation:

z-score for LSAT

Molly's score=120

mean=150

Standard deviation=15

z-score= (Molly LSAT score-mean)/standard deviation

z=120-150/15=-30/15=-2

z-score for MCAT

Molly's score=52

mean=40

Standard deviation=6

z-score= (Molly MCAT score-mean)/standard deviation

z=52-40/6=12/6=2

3 0
2 years ago
On his way to the park, Nathan rides his bike at a rate of 0.50 mile per minute for 3 minutes. He stops to admire an antique car
TiliK225 [7]

Answer and Step-by-step explanation:

Although the question is not complete, but with the context of the question, they are most likely going to ask for the total distance travelled or the total time or speed. So let's work on that.

Total time travelled = (3 + 5 + 4) = 12mins

Total speed travelled = (0.50 + 0.00 + 0.40)miles/min = 0.90mile/min

The 0.00 represents the period he was at rest admiring an antique car. At this moment, he was not moving so his speed is 0.

Total distance travelled = total speed x total time = 0.90miles/min x 12min = 10.8miles

5 0
2 years ago
MATH HELP ASAP! PLEASE HELP! 20 POINTS!!
Aloiza [94]

The mean decreases, think about it, if every single value in a data set was decreased by the same number, the average would also go down by the same number

The median would also go down, because the value in the middle of the data set would now be smaller than before

The mode would also decrease, because the value that showed up the most in the data set has now also been decreased

The range, however, stays the same. If the lowest value in a data set was 3 and the highest was 10 and you subtracted 2 from each value in the data set, you would have the lowest at 1 and the highest at 8. But, 10-3 still equals 8-1, so the range is unchanged

8 0
2 years ago
I need help what is 1/3x-3?​
lilavasa [31]

Answer:

\frac{1}{3}x-3=\frac{x}{3}-3

Step-by-step explanation:

\frac{1}{3}x-3\\\\\frac{1}{3}x = \frac{x}{3}  \\\\Find\:L.C.M.\\\\=\frac{x}{3}-3

8 0
3 years ago
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