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AlexFokin [52]
3 years ago
15

To solve 5(2x + 4) = 15, first divide each side by .

Mathematics
2 answers:
Fofino [41]3 years ago
8 0

Step-by-step explanation:

5(2x+4)=15

10x+20=15

10x=15-20

<u>1</u><u>0</u><u>x</u>= <u>-</u><u>5</u>

10. 10

x=-1/2

Cerrena [4.2K]3 years ago
7 0

Answer:

<u>First part:</u> Divide each side by 5

<u>Second part:</u> x = -2.415

Step-by-step explanation:

This is correct on EDGE 2020

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40.51x+12.45y=666.64
irga5000 [103]

Answer:

The graph of the equation 40.51x+12.45y=666.64 is attached with the answer where the horizontal axis represents the X axis and the vertical axis represents Y axis.

To plot the graph physically just find two points lying on the line. Mark the points on the graph sheet and then join them. This will give you the line represented by the equation.

To find points on the line assume the value of any one variable, substitute it in the equation, then solve the equation to find the value of other variable. For example : assume y = 1; substitute the value of y in the equation;

⇒ 40.51x + 12.45×1 = 666.64

⇒ 40.51x = 666.64 - 12.45

⇒ 40.51x = 654.19

⇒ x = \frac{654.19}{40.51}

⇒ x ≈ 16.149

Therefore point ( 16.149 , 1 ) lie on the graph of the equation.

***Only two points are required to plot this graph just because it represents a straight line, that we can conclude just by observing the equation. If in an equation the power of x is 1 or 0 and power of y is 1 or 0 then only it will represent a straight line in 2-D plane.***

5 0
3 years ago
Please help!! Question is down below and I’m kinda confused
Arada [10]
It would be the last one
4 0
3 years ago
Urgenttttt please I need it fast​
dolphi86 [110]

Answer:

Below in bold.

Step-by-step explanation:

c) 3 x (9^2)^3/4 x ((81^3)^5/6

= 3 x 81^3/4 x 81^15/6

= 3 x 81^(3/4 + 15/6)

= 3 x 81^13/4

= 3 x 3^13

= 3^14

= 4,782,969.

f) (5x^-1y^2)^-2 / (25 x^2 y - 1)^2

=  5^-2 x^2y^-4 / 625 x^4y^-2

=  5^-2 x^-2 y^-2 / 5^4

= 5^-6 x^-2y^-2

= 0.000064x^-2y^-2.

5 0
3 years ago
What would the answer be for this equation 7x/20 - 5x/12
polet [3.4K]

Answer:

\frac{1}{15} x

Step-by-step explanation:

\frac{7x}{20}  -  \frac{5x}{12}

\frac{3 \times 7x}{3 \times 20}  -  \frac{5 \times 5x}{5 \times 12}

\frac{21x}{60}  -  \frac{25x}{60}

\frac{21x - 25x}{60}  = (21 - 25)x =  - 4x

\frac{ - 4x}{60}  =  -  \frac{ x}{15}

\boxed{\green{=  \frac{1}{15} x}}

4 0
2 years ago
A bag of M&amp;Ms have eight red 10 brown and six green what color are in the ratio of 5:3
son4ous [18]

Answer:

BROWN & GREEN

Step-by-step explanation

6 : 8 : 10

divide above ratio by 2

3 : 4 : 5

green : red : brown

3 : 5

green : brown

8 0
3 years ago
Read 2 more answers
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