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Art [367]
3 years ago
6

Justity each step in solving the equation 4x = 7(x - 3) by writing a reason for each statement Answer Statement Reason 1. 4x7x3)

1. 2. 4x = 7x - 21 2. 3. 3x = 21 3. 4X=7 4.
Mathematics
1 answer:
NemiM [27]3 years ago
4 0

Answer:

2. 4x = 7x - 21

Step-by-step explanation:

4x = 7(x - 3) \\ 4x = 7x - 21 \\ 21 = 7x  - 4x \\ 21 = 3x \\  \frac{21}{3}  = x \\ 7 = x \\

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0.007 divided by 10 equivalent to 0.07
allochka39001 [22]

Does 0.007/10=0.07

true or false?

Answer:

NO if you wanted to get 0.07 you would have to multiply not divide.

Step-by-step explanation:

0.007/10=0.0007

8 0
3 years ago
Wyatt’s class is having pizza party. Each group of 3 students eats 1 1/2 pizzas.
valina [46]
What is the question
6 0
3 years ago
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Write an equation for the line that passes through the points (-1,-12) and (4,8)​
Aleks [24]

Answer:

y = 4x - 8

Step-by-step explanation:

(-1, -12) & (4, 8)

First you want to find the slope of the line that passes through these points. To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)

Plug in these values:

(8 - (-12)) / (4 - (-1))

Simplify the parentheses.

= (8 + 12) / (4 + 1)

= (20) / (5)

Simplify the fraction.

20/5

= 4

This is your slope. Plug this value into the standard slope-intercept equation of y = mx + b.

y = 4x + b

To find b, we want to plug in a value that we know is on this line: in this case, I will use the second point (4, 8). Plug in the x and y values into the x and y of the standard equation.

8 = 4(4) + b

To find b, multiply the slope and the input of x(4)

8 = 16 + b

Now, subtract 16 from both sides to isolate b.

-8 = b

Plug this into your standard equation.

y = 4x - 8

This is your equation.

Check this by plugging in the other point you have not checked yet (-1, -12).

y = 4x - 8

-12 = 4(-1) - 8

-12 = -4 - 8

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Your equation is correct.

Hope this helps!

8 0
3 years ago
Find SP when CP=Rs.400 and proft%=4%
kvasek [131]

Answer:

\boxed{Selling\ Price = Rs.\ 424}

Step-by-step explanation:

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Profit = 4 % of Cost Price

=> \frac{4}{100} * 600

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7 0
3 years ago
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If a circle has a circumference of 4.6pi what is the area?
Alla [95]

Answer:

r = 0.732 d = 1.46 C = 4.6

Step-by-step explanation:

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3 years ago
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