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GarryVolchara [31]
3 years ago
9

Show how you can solve this proportion using both the cross‐product property and the reciprocal property.

Mathematics
1 answer:
vova2212 [387]3 years ago
5 0

Answer:95

Step-by-step explanation:2x19=38

5x19=95

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X = 0<br> Solve.<br> 2.1x - (1 + 2x) = 5.3
HACTEHA [7]

Answer:

<u>-1=5.3</u>

<u />

<em>not sure if this is right; it should be though</em>

<em></em>

Step-by-step explanation:

2.1(0) - (1+2(0))= 5.3

-(1)=5.3

-1=5.3

8 0
3 years ago
The manager of a radio station decides that on each successive evening (7 days per week), a Beethoven piano sonata will be playe
VashaNatasha [74]

Answer:

3 years, 11 months and 10 days

Step-by-step explanation:

Beethoven wrote

32 piano sonatas

9 symphonies

5 piano concertos

By the fundamental principle of counting there are

32 times 9 times 5 ways of combining these pieces in the required order.

32 times 9 times 5 = 1,440

As there are 365 days in a year, the policy decided by the manager could be continued during

1,440/365 = 3.9452 years.

But 3.9452 years = 3 years + 0.9452 years.

As 1 year equals 12 months

0.9452 years = 11.3424 months

11.3424 months = 11 months+0.3424 months

As 1 month = 30 days

0.3424 months = 10.27 days = 10 days rounded to the nearest integer

So, the manager could continue this policy for

3 years, 11 months and 10 days without repeating the program.

8 0
3 years ago
HOW DO I SOLVE THIS PLEASE HELP
malfutka [58]

Answer:

  x = 15

Step-by-step explanation:

We assume you want to find the value of x.

Know (or prove) that in this geometry, all of the right triangles are similar. That means the ratios of corresponding sides are proportional.

  short side / hypotenuse = 9/x = x/25

  x^2 = (9)(25) . . . . . . . . . . multiply by 25x ("cross multiply")

  x = √((9)(25)) = (3)(5) . . . take the square root

  x = 15

3 0
3 years ago
Write a linear function whose slope is -4 and y intercept is -5. Explain what these values mean in the equation.
dsp73
In y = mx + b form, the slope is in the m position and the y int is in the b position.

y = mx + b
slope(m) = -4
y int (b) = -5
y = -4x - 5
or
f(x) = -4x - 5
8 0
4 years ago
Find the slope of the described line by x - 6y = -12​
Simora [160]

Answer:

Slope <em>m</em> = 1/6

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

<u>Algebra I</u>

Standard Form: Ax + By = C

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define</u>

x - 6y = -12

<u>Step 2: Rearrange</u>

<em>Find slope-intercept form.</em>

  1. Subtract <em>x</em> on both sides:                    -6y = -x - 12
  2. Divide -6 on both sides:                      y = 1/6x + 2

<u>Step 3: Break Function</u>

<em>Identify Parts.</em>

Slope <em>m</em> = 1/6

y-intercept <em>b </em>= 2

8 0
3 years ago
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