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3 years ago

3=7-2(3z+2) How to solve

Mathematics

1 answer:

attashe74 [19]3 years ago

3 0

Answer: z = 0 | Equation is not solvable

Step-by-step explanation:

We have 3 = 7 - 2(3z + 2)

When we distribute the 2, we get: -6z - 4 + 7 = 3

Combine like terms: -6z + 3 = 3

Subtract the left hand side 3 from the right hand side 3: -6z = 0

We can not divide by zero thus the equation is not solvable.

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NORTH RIDGE MIDDLE SCHOOL collected 5,022 cans of food for food drive. Each of the 18 homerooms collected the same number of can

Diano4ka-milaya [45]

Answer:

5022 estimate= 5020

18 estimate= 20

So, 5022/20

=251

Step-by-step explanation:

The questions says "about" so that means you have to estimate. First, you estimate the cans, then, you estimate the homerooms = 5022 and 20. Last, you have to divide, 5022/20

=251

Hope it helped!:)

4 0

3 years ago

I suck at math

solniwko [45]

Area of rectangle = length*breadth
= 30*22
=660 yards2
hence answer is D.
hope this helps! :)

6 0

4 years ago

The position of a diving bell is −34−34 mile relative to sea level. the diving bell reached this position after dropping from se

ExtremeBDS [4]

since it travel at a constant speed. Calculate first its speed of descent.

S = -3/4 mile / 1 ½ hr

S = -0.5 mile an hour

So the position of the diving bell relative to sea level 1 hour after it began its descent is

D = (0.5 mile/ hr) x 1 hr = - 0.5 mile

4 0

3 years ago

If the line formed by equation 1 is parallel to the line formed by equation 2, fill in the missing value below.

madreJ [45]

Answer:

$y =-\frac{3}{2}x + 6$

Step-by-step explanation:

Given

$y = []x + 6$ --- equation 1

$y = \frac{2}{3}x + 10$ --- equation 2

Required

Fill in the blank

A linear equation is represented as:

$y = mx + b$

Where m represents the slope

If (1) and (2) are perpendicular, then:

$m_1 = -\frac{1}{m_2}$

In $y = \frac{2}{3}x + 10$ --- equation 2

$m_2 = \frac{2}{3}$

So, we have:

$m_1 = -\frac{1}{m_2}$

$m_1 = -\frac{1}{2/3}$

$m_1 = -\frac{3}{2}$

Hence, the complete equation is:

$y =-\frac{3}{2}x + 6$

7 0

3 years ago

What are the solutions to the equation? x^2+6x = 40.

GaryK [48]

Answer:

x = 4, -10

Step-by-step explanation:

Find the zeros of the equations.

Solve the equation:

x^2 + 6x = 40

Subtract -40 from both sides.

x^2 + 6x - 40 = 0

Factor the equation.

(x - 4)(x + 10)

Solve for x with the given information by equaling it to 0.

x - 4 = 0

Add 4 to both sides

x = 4

x + 10 = 0

Subtract 10 from both sides

x = -10

This means that our x values are:

x = 4, -10

6 0

3 years ago