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cestrela7 [59]
3 years ago
13

Solve each of the following equations for the given variable using proper algebraic notation. Show ALL work for full marks.

Mathematics
1 answer:
icang [17]3 years ago
6 0

Answer:

3x=42

Divide 3x to both sides

14=x

56=8x

Divide 8 to both sides

7=6

6x+4=40

subtract 4 to both sides

6x=36

divide 6 to both sides

x=6

58=4x-6

add 6 to both sides

64=4x

divide 4 to both sides

16=x

Step-by-step explanation:

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Multiply. What is the value of the second partial product?<br><br> 26 × 107
Reil [10]

Answer:

Below

Step-by-step explanation:

(20*100)+(20*7)+(100*6)+(7*6)

8 0
3 years ago
Ava and Kelly ran a road race, starting from the same place at the same time. Ava ran at an average speed of 6 miles per hour. K
zalisa [80]
<h2>Hello!</h2>

The answer is:

It will took 0.375 hours for Ava and Kelly to be 3/4 miles apart.

<h2>Why?</h2>

To calculate how long after they start they will be 3/4 miles apart, we need to write two equations.

So, writing the equations, we have:

Calculations for Ava:

We have the following information,

v_{Ava}=6mph

Then, writing the equation,

x_{Ava}=x_{o}+v_{Ava}*t

x_{Ava}=x_{o}+v_{6mph}*t

Calculations for Kelly:

We have the following information,

v_{Kelly}=8mph

We need to calculate when Kelly will be 3/4 miles apart of Ava, so, it's position will be the Ava's position plus 3/4 miles.

Then, writing the equation,

x_{Ava}+0.75miles=x_{o}+v_{Kelly}*t

x_{Ava}+0.75miles=x_{o}+v_{8mph}*t

Now, substituting Ava's speed into the second equation, we have:

x_{o}+6mph*t+0.75miles=x_{o}+8mph*t

6mph*t+0.75miles=+8mph*t

8mph*t-6mph*t=0.75miles

2mph*t=0.75miles

t=\frac{0.75miles}{2mph}=0.375hours

Hence, we have that it will took 0.375 hours for Ava and Kelly to be 3/4 miles apart.

Have a nice day!

7 0
3 years ago
Read 2 more answers
Help and thanks please
goblinko [34]

Answer:

D i think

Step-by-step explanation:

7 0
3 years ago
Solve equation<br> 7+3x-12x=3x+1
inysia [295]
7+3x-12x=3x+1
We will first make all the numbers which have x in go to the left.
So 7+3x-12x-3x, we make the 3x negative since to make it move it needs to change.
Then we will make all the sevens go to the right, so 3x-12x-3x=1-7.
So now it is much easier to figure out.
-12x=-6
4 0
3 years ago
Find the height of a triangle that has an area of 30 square units and a base measuring 12 units.
Alexxx [7]
The equation for the area of a triangle is 1/2 x base x height. Plug in the values that you already have with h being the missing height value: 30= 1/2 x 12 x h Simplify: 30=6h Solve: 30/6=h 5=h The heoght of the triangle is 5 units
7 0
4 years ago
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