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3 years ago

17 to 26 Help me please

Mathematics

1 answer:

Pepsi [2]3 years ago

4 0

Answer:

See below

Step-by-step explanation:

17. 17x + 3 x=4 18. -2x + 1 / 3 x= -5

17(4) + 3 - [(2)(-5) + 1] / 3

68 + 3 - [-10 + 1] /3

71 9/3 or 3

19. 2x - 33 x=9 20. - 9x - 2 x=7

(2)(9) - 33 -(9)(7) - 2

18 - 33 -63 - 2

- 15 -65

21. 7/3x - 9 x=3 22. - [12x/5] x= -1

(7/3)(3) - 9 - [(12)( -1)/5]

7 - 9 - [ -12/5 ]

-2 2.4

23. 11x - 11 x = -11 24. (2/9)x - (9/2) x= 9

- 121 - 11 (2/9)(9) - (9/2)

-132 2 - (9/2) ( 2 can be shown as 4/2)

(4/2) - (9/2)

- 5/2 or - 2.5

25. f(x) = 0.12x + 4.52 x = 250 26. f(x) = 0.18x + 3.12 x= 175

= (0.12)(250) + 4.52 = (0.18)(175) + 3.12

= 30 + 4.52 = 31.50 + 3.12

= 34.52 = 34.62

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How much longer is the hypotenuse of the triangle than its shorter leg?

RUDIKE [14]

This is an incomplete question, here is a complete question and image is also attached below.

How much longer is the hypotenuse of the triangle than its shorter leg?

a. 2 ft

b. 4 ft

c. 8 ft

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Step-by-step explanation:

Using Pythagoras theorem in ΔACB :

$(Hypotenuse)^2=(Perpendicular)^2+(Base)^2$

$(AB)^2=(AC)^2+(BC)^2$

Given:

Side AC = 6 ft

Side BC = 8 ft

Now put all the values in the above expression, we get the value of side AB.

$(AB)^2=(6)^2+(8)^2$

$AB=\sqrt{(6)^2+(8)^2}$

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Now we have to calculate the how much longer is the hypotenuse of the triangle than its shorter leg.

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Difference = 4 ft

Therefore, the 4 ft longer is the hypotenuse of the triangle than its shorter leg.

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VMariaS [17]

Ratio of children, adults and pensioners is 1 : 2 : 8/3 = 3 : 6 : 8.

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So, 6x is number of adults and 8x is number of pensioners.

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