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ELEN [110]
2 years ago
15

RATIO AND PROPORTION 1st correct answer is marked brainliest

Mathematics
2 answers:
Anarel [89]2 years ago
4 0
2, 8, 7, 9, 18, 12, 10, 12, 12, 45
4, 24, 2, 6, 6, 12, 9, 7, 18, 5
Are the answers for the ratios the first 10 are on top in order and the bottom 10 are on the right in order
jenyasd209 [6]2 years ago
3 0

Answer:

2:9         4:8

8:3         24:6

9:7          3:2

18:15      6:6

18:12     12:16

10:40    5:9

12:16     6:7

12:36     12:18

45:15     4:5

those in bold are the answer

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The table below represents a linear function f(x) and the equation represents a function g(x):
forsale [732]

Answer:

Step-by-step explanation:

vr

6 0
2 years ago
Need help with this problem explain pls
Usimov [2.4K]
All sides of an equilateral triangle are equal, so all three sides are 9 cm.
To find h, use the pythagorean theorem. This requires use of only one right triangle, where we use b as our h.

a^2+b^2=c^2
(4.5)^2+b^2=(9)^2
(20.25)+b^2=(81)
b^2=(81/20.25) or 4
square root both sides
b=2
6 0
3 years ago
Which system of inequalities is represented by the graph?
timofeeve [1]

Answer:

The system of inequalities " x + 2 y ≤ 5 and 3 x + y ≤ 4 " is represented by the graph ⇒ D

Step-by-step explanation:

To find the answer let us find the equation of each line

Blue line:

∵ The line passes through points (5 , 0) and (0 , 2.5)

- Find the slope of the line

∵ m = Δy/Δx

∴ \frac{0-2.5}{5-0}=\frac{-2.5}{5}

∴ m = -0.5

- The form of the equation is y = m x  + b, where b is the

   y-intercept (value y at x = 0)

∵ y = 2.5 at x = 0

∴ b = 2.5

- Write the equation of the line

∴ y = - 0.5 x + 2.5

- Multiply both sides by 2

∴ The equation of the blue line is 2 y = - x + 5

- The shading is under the line and the line is solid, that means

  2 y is less than or equal - x + 5

∴ The inequality of the blue line is 2 y ≤ - x + 5

Red line:

∵ The line passes through points (3 , -5) and (0 , 4)

- Find the slope of the line

∴ m=\frac{-5-4}{3-0}=\frac{-9}{3}

∴ m = -3

∵ y = 4 at x = 0

∴ b = 4

- Write the equation of the line

∴ y =  -3 x + 4

∴ The equation of the red line is y = -3 x + 4

- The shading is below the line and the line is solid, that means

  y is less than or equal -3 x + 4

∴ The inequality of the red line is y ≤ -3 x + 4

Let us find which answer is the same with this system of inequalities

∵ 2 y ≤ - x + 5

- Add x to both sides

∴ x + 2 y ≤ 5 ⇒ same as the first inequality of answer D

∵ y ≤ -3 x + 4

- Add 3 x to both sides

∴ 3 x + y ≤ 4 ⇒ same as the second inequality of answer D

The system of inequalities " x + 2 y ≤ 5 and 3 x + y ≤ 4" is represented by the graph

4 0
3 years ago
Consider 10 married couples. how many ways can 7 married couples be selected from this group
Novay_Z [31]
10c7
=10!/(7!*(10-7)!)
=120
3 0
3 years ago
A toy train car is 6 in. long. If a real train car is 75 ft long, which of the following have the same constant of proportionali
Rus_ich [418]

Answer:

use this

Step-by-step explanation:

velocity = distance / time…. So distance = velocity x time

3 0
3 years ago
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