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Free_Kalibri [48]
3 years ago
9

What is 3x-4=18+5x ?

Mathematics
1 answer:
My name is Ann [436]3 years ago
7 0
3x - 4 = 18+5x
-3x             -3x

-4-18 = 18 + 2x
       -18

-22 = 2x

2x/2 = -22/2

x= -22/2

x= -11

Final answer: x = -11
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I’m pretty sure it’s b I had the same hw sheet
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3 years ago
Which expression is equivalent to the one below? check all that apply. 81x
olga_2 [115]

Answer:

The correct options are A ,C and F.

Step-by-step explanation:

The given expression is

81^x

Calculate the simplified form of given options.

A.

(9\cdot 9)^x=81^x

B.

9\cdot 9^{2x}=9\cdot (9^2)^x=9(81)^x

C.

9^x\cdot 9^x=(9\cdot 9)^x=81^x

D.

9^2\cdot 9^x=81(9^x)

E.

9\cdot 9^x=9(9^x)

F.

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4 0
3 years ago
Read 2 more answers
What is the slope of the line?
valentinak56 [21]

Answer:

4/5

Step-by-step explanation:

5(y + 2) = 4(x - 3)

Divide each side by 5

5/5(y + 2) = 4/5(x - 3)

(y + 2) = 4/5(x - 3)

This is in point slope form

(y  - y1) = m(x - x1)

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3 0
3 years ago
the rectangular grassy plot 126 m by 48m has a gravel path 1.5m wide a road 2.5m wide is constructed all around it on inside of
dusya [7]

Answer:

= Sh. 2281.50

Step-by-step explanation:

Area of the path;

(126 × 2.5 ) + (2.5 × (48 - (2.5×2)

= 315 + (2.5 × 43)

= 315 + 107.5

= 422.5 m²

But; the cost of graveling is sh 5.40 per square meter

Therefore; The cost of graveling the whole path;

= 422.5 × 5.40

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6 0
4 years ago
If a rectangle measures 21 centimeters by 28 centimeters what is the length in centimeters of the diagonal of the rectangle
SOVA2 [1]

Answer:

35cm

Step-by-step explanation:

Given data

Length= 21cm

Width= 28cm

Diagonal= ???

Applying Pythagoras theorem

D^2= L^2+W^2

D^2= 21^2+28^2

D^2= 441+784

D^2= 1225

D= √1225

D= 35cm

Hence the diagonal is 35cm

4 0
3 years ago
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