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Elan Coil [88]
3 years ago
10

Please help me it’s due today at 4:20pm please help me please please help me

Mathematics
2 answers:
Sergio039 [100]3 years ago
4 0

Answer:

x = 3, the error is that the -2x should be added.

Step-by-step explanation:

The -2x should be added to the left side.

3x - 7 = -2x + 8

3x + 2x = 8 + 7

5x = 15

x =3

Answer lest edited 3:11 PM Central, 11/24/2020

charle [14.2K]3 years ago
3 0

Answer:

x=5

Step-by-step explanation:

Correct way:

Add 2x to 3x ( 5x )

3x-7=8

Add 7 to 8 ( 15 )

3x=15

Divide 15/3

x= 5

What was wrong:

You need to combine like terms and put the variable on the left side of the equation and then follow the steps above. You also forgot to divide.

Hope this helped, Have a Great Day!!

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kolezko [41]

Answer:

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3 years ago
the sum of two numbers is 63. The smaller number is 9 less than the larger number.what are the numbers
dezoksy [38]

Answer:

27 and 36

Step-by-step explanation:

x + (x - 9) = 63

2x - 9 = 63

add 9 to both sides

2x = 72

Divide both sides by2

x = 36

x - 9 = 36 - 9

x - 9 = 27

7 0
3 years ago
Which of the following slopes of a line pass through points (1, -3) and (0, 2)?
Aloiza [94]

The slope of the line that passes through (1, -3) and (0, 2) is: B. m = -5.

<h3>What is the Slope of a Line?</h3>

Slope (m) = rise / run = change in y / change in x.

Given the points, (1, -3) and (0, 2):

Slope (m) = (-3 - 2)/(1 - 0)

Slope (m) = -5/1

Slope (m) = -5

Therefore, the slope of the line is: B. m = -5.

Learn more about the slope of a line on:

brainly.com/question/3493733

#SPJ1

6 0
1 year ago
Match each description when z = 9 + 3i. 1. Real part of z 2. Imaginary part of z 3. Complex conjugate of z 4. 3i - z 5. z - 9 6.
sergey [27]
1)\quad \Re(9+3i)=9\qquad\text{F}\\\\&#10;2)\quad \Im(9+3i)=3\qquad\text{E}\\\\&#10;3)\quad \overline{(9+3i)}=9-3i\qquad\text{D}\\\\&#10;4)\quad 3i-(9+3i)=3i-9-3i=-9\qquad\text{A}\\\\&#10;5)\quad 9+3i-9=3i\qquad\text{B}\\\\&#10;6)\quad 9-(9+3i)=9-9-3i=-3i\qquad\text{C}\\\\
5 0
3 years ago
A 16 inch candle is lit and burns at a constant rate of 1.1 inches per hour. Let t represent the never of hours that have elapse
Alex17521 [72]

Answer:

(a) Number of inches that have burned from the candle since it was lit is (1.1t) inches

(b) The remaining length of the candle is (16 - 1.1t) inches

Step-by-step explanation:

(a). Length of candle before it was lit = 16 inches

Constant rate at which at which candle burns = 1.1 inches per hour

Let t represent the number of hours that have elapsed since the candle was lit

In 1 hour, 1.1 inches of the candle burned

Therefore, in t hours, (1.1t) inches of the candle would have burned since the candle was lit

(b) Remaining length of candle = length of candle before it was lit - length of candle that have burned = 16 inches - 1.1t inches = (16 - 1.1t) inches

6 0
3 years ago
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