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Bas_tet [7]
3 years ago
15

2x - 4 = -8 what is the value of x?

Mathematics
1 answer:
Brums [2.3K]3 years ago
3 0

Answer:

x = -2

Step-by-step explanation:

2x = -8+4

2x = -4

x = -2

CHECK

-4 - 4 = -8

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Can someone plz help with 5, 6 and 7
juin [17]

Answer:

750 people will come in at 15 hours.

Step-by-step explanation:

350 divided by 7=50       50 times 15=750

sorry i don't know  the rest

8 0
3 years ago
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A newspaper reported that 4040​% of people say that some coffee shops are overpriced. The source of this information was a telep
vampirchik [111]

Answer:

a. Identify the population of interest in this study.

  • all the population of the country

b. Identify the sample for the study.

  • 50 adults (the ones that were surveyed)

c. Identify the parameter of interest in the study.

  • the parameter of interest is the people that believe that coffee shops are overpriced

d. Find and interpret a 95​% confidence interval for the parameter of interest.

z score for a 95% confidence level = 1.96

margin of error (E) = z score x √{[0.4(1 - 0.4)] / 50} = 1.96 x 0.069282 = 0.13579

95% confidence level interval:

0.4 - 0.13579 = 0.26421

0.4 + 0.13579 = 0.53579

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5 0
3 years ago
Find the slope of the line through each pair of points.<br><br> (19, −2), (−11, 10)
Stels [109]

Answer:

slope = -\frac{2}{5}

Step-by-step explanation:

1) Calculate the slope using slope formula, \frac{y_2-y_1}{x_2-x_1}. Use the two points given, substitute their x and y values into the formula, and solve.

\frac{(10)-(-2)}{(-11)-(19)} \\= \frac{10+2}{-11-19} \\= \frac{12}{-30}\\= -\frac{2}{5}

Thus, the slope is -\frac{2}{5}.  

4 0
3 years ago
The maximum number of charms that will fit on a bracelet is 3(d-2/3), where d is the diameter (In centimeters) of the bracelet.
viva [34]

Answer: 16

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Step-by-step explanation:

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14. Let g represent Gupta's age. You can solve the equation 2g - 5+ g = 31 to find g. Which property would not be used in solvin
True [87]

Answer:

B. Commutative Property of Addition

Explanation:

To find out the property that would not be used in solving this equation, we solve for g.

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A. Addition Property of Equality/D. Subtraction Property of Equality​

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8 0
1 year ago
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