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777dan777 [17]
3 years ago
11

Simplify the ratio. 14 ft to 21 ft

Mathematics
1 answer:
larisa86 [58]3 years ago
7 0

14 ft to 21 ft = 2 ft to 3 ft

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Twice a number, increased by 3 is the same as five less than four times a number.what is the number?
zzz [600]

Answer:

x = 4, hope this helps!

Step-by-step explanation:

2x + 3 = 4x - 5

-2x -2x

3 = 2x -5

+5 +5

8 = 2x

divide by 2 on both sides

4 = x

switch where the x and 4 is, because teachers seem to like that

x = 4

8 0
3 years ago
30 POINTS!!!!! PLEASE HELP
Hoochie [10]

Answer:

a) For a constant increment in x-variable, there is a constant increment in y-variable, for example, for x = 0 to x = 0.5 (increment = 0.5) y-variable goes from 60 to 62 (increment = 2); the same is valid for any couple of (x,y) values. This behaviour is characteristic of linear equations.

b) slope:

m = (increment in y-variable)/(increment in x-variable) = 2/0.5 = 4

y-intercept:

y1 = m*x1 + h

60 = 4*0 + h

60 = h

equation: y = 4x + 60

where y represents scores and x represents hours spent studying

c) The slope indicates that you need to study 1 hour to increase your score in 4 points

The y-intercept indicates that you will get at least a score of 60, even though you hadn't studied

3 0
3 years ago
What is the fractional form of 0.8 repeating
Sonja [21]
When there is only one number repeating, put it over 9
0.8 repeating is 8/9

if there was 2 numbers repeating (.232323), u would put it over 99....23/99
if there was 3 numbers repeating (.234234234), u would put it over 999...234/999
8 0
3 years ago
20 POINTS FOR THIS!!!!!!!!!!!!!!!!!!!!!!!!
Sloan [31]

Answer:

b = 13

Step-by-step explanation:

the value of the discount is a constant, while the total cost of the books is a variable because it depends of the purchase

We can write this equation

5b - 7 = 58

Solve it

1) add 7 at both members

5b -7 + 7 = 58 + 7

5b = 65

2) divide both membera by 5

b = 13

7 0
2 years ago
Read 2 more answers
Use triangle XYZ to answer questions 3-5.
Murljashka [212]

Answer:

Step-by-step explanation:

7 0
2 years ago
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