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2 years ago

Solve for x. -8 - 7x = -5x - 10

Mathematics

1 answer:

Arlecino [84]2 years ago

5 0

Answer:

×=1

Step-by-step explanation:

-7x+5x=-10+8

-2×=-10+8

x=1

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Which ordered pairs are in a proportional relationship with (0.2, 0.3)?

MAXImum [283]

Answer:

C and E

Step-by-step explanation:

We are given that

$x_1=0.2,y_1=0.3$

$\frac{y}{x}=\frac{0.3}{0.2}=\frac{3}{2}$

$k=\frac{y}{x}=\frac{3}{2}$

A. $x_2=1.2,y_2=2.3$

$\frac{y_2}{x_2}=\frac{2.3}{1.2}=\frac{23}{12}\neq=\frac{3}{2}$

Hence, it is not in proportional relationship with (0.2,0.3)

B.(2.7,4.3)

$x_3=2.7,y_3=4.3$

$\frac{y_3}{x_3}=\frac{4.3}{2.7}=\frac{43}{27}\neq\frac{3}{2}$

Hence, it is not in proportional relationship with (0.2,0.3).

C.(3.2,4.8)

$x_4=3.2,y_4=4.8$

$\frac{y_4}{x_4}=\frac{4.8}{3.2}=\frac{3}{2}$

Hence, the ordered pair (3.2,4.8) are in a proportional relationship with (0.2,0.3).

D.(3.5,5.3)

$\frac{y_5}{x_5}=\frac{5.3}{3.5}=\frac{53}{35}\neq \frac{3}{2}$

Hence, the ordered pair (3.5,5.3) are not in a proportional relationship with (0.2,0.3).

E.(5.2,7.8)

$\frac{y_6}{x_6}=\frac{7.8}{5.2}=\frac{3}{2}$

Hence, the ordered pair (5.2,7.8) are in a proportional relationship with (0.2,0.3).

4 0

2 years ago

What are the solutions of the equation x^2+4x+4=25

vodomira [7]

X² + 4x + 4 = 25
(x+2)² = 25
x + 2 = ±5
x + 2 = -5 or x + 2 = 5
x = -5 -2 x = 5 - 2
x = -7 x = 3

The solutions are x=-7 and x=3

7 0

2 years ago

The function <img src="https://tex.z-dn.net/?f=y%20%3D%20x%5E%7B3%7D%20%2B2mx%5E%7B2%7D%20%2B%20%283m-1%29x%20%2B%202" id="TexFo

Lera25 [3.4K]

Answer:

This is not correct question

6 0

2 years ago

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Solve the equation 5x - 8 = 9 Helpppp pleaseeee

Rama09 [41]

Answer:

x= 17/5

Step-by-step explanation:

8 0

2 years ago

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Show your work please!

timofeeve [1]

Answer:

Step-by-step explanation:

10^5=100,000

100,000*4.7=470,000 (Four Hundred Seventy Thousand)

10^8=100000000

100000000*3.9=390,000,000 (Three Hundred Ninty Million)

10^5=100,000

100,000*5.2=520,000 (Five Hundred Two Thousand)

Least to Greatest:

470,000 520,000 390,000,000

I III II

6 0

2 years ago

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