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algol13
3 years ago
8

2x-7=13 what is answer

Mathematics
2 answers:
Serggg [28]3 years ago
7 0

Answer:

x = 10

Step-by-step explanation:

2x-7=13

2x = 20  (Add 7 to both sides)

x = 10 (Divide by 2 on both sides)

Sholpan [36]3 years ago
4 0

Answer:

10

Step-by-step explanation:

2x - 7 = 13

2x = 13+7 = 20

x = 20/2 = 10

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Definition of vertical line test
Serhud [2]

the vertical line test is a graphical way to determine whether or not the graph is a function of x

if you can draw a vertical line on a graph and cross the graph at least 2 times, the graph is not a function

a function will have 1 y value for every x value, therefore, if we can draw a vertical line (x=c, a constant) that intersects the curve at more than 1 point, then that point where it intersects at more than 1 point is where 1 value of x coresponds to more than 1 value of y and is therefore not a function

4 0
3 years ago
An airplane descends 2.5 miles to an elevation of 7.55 miles. Find the elevation of the plane before its descent. The initial el
Zielflug [23.3K]

Answer:

8.75!

Step-by-step explanation:

the answer is x-2.5=6.25

6.25+2.50=8.75

7 0
3 years ago
In 1985 there were 275 cell phone subscribers in the small town of China grove. Subscribers increased by 40% each year after 198
emmasim [6.3K]
1985year ->275cell phones->100%
1994year -> x cell phones ->100%+360%
40% • (1994-1985)= 40% • 9= 360%

275 cell phone 100%
X cell phones. 100+360%=460%
x=275•460%/100%
x=12420/100
x=1265
99% sure this is a correct answer


x=275 • 460%/100%
x=12,420/100
x=1265

1994-1985= 9 yrs • 40%= 360%

5 0
3 years ago
Abby's school is 6 blocks west of her house. Her mother works at a store that is 4 blocks east of her school. Use a number line
faltersainse [42]

Answer:

<h2>10</h2>

Step-by-step explanation:

Let us give a proper illustration in the number line

let H be Abby's house

and S be the school

let W be her mother's work.

kindly find attached a rough sketch of the number line for your reference

Question:<em> What value represents the difference in position between Abby's house and her mother's store?</em>

basically, the distance between two points on a number line is the difference between the points.

So the value that represents the position between Abby's house and her mother's store is the distance between the two points.

= 4-(-6)

=4+6

=10  

7 0
3 years ago
MULTIPLE CHOICE
OLEGan [10]

Answer:

C

Step-by-step explanation:

8 x 6 would equal 48, which results in not having enough money to buy lunch for more people.

6 0
3 years ago
Read 2 more answers
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