All categories

3 years ago

3. In the following formal proof, what is the missing reason?

Mathematics

2 answers:

Lana71 [14]3 years ago

6 0

Answer:

Step-by-step explanation:

Start with 2x = 12, and end with x = 6.

To do that, you need to divide both sides by 2.

Answer: A

AlladinOne [14]3 years ago

3 0

The answer is A
I just know it

You might be interested in

Landon was taking a math test. He finished 1/2 of the test in 3/5 of an hour. How much of the test will he have done in one hour

timama [110]

Answer:

$\frac{5}{6}\ of\ the \ test$

Step-by-step explanation:

we know that

Landon finished 1/2 of the test in 3/5 of an hour

by proportion

Find out how much of the test will he have done in one hour

$\frac{(1/2)}{(3/5)}\frac{test}{hours} =\frac{x}{1}\frac{test}{hour}\\ \\x=(1/2)*(5/3)\\ \\x=\frac{5}{6}\ of\ the \ test$

7 0

3 years ago

What number is the arrow pointing at?

Licemer1 [7]

Answer:

540 is the correct answer. Each mark is an increase of 20.

5 0

2 years ago

Read 2 more answers

"write the expression in radical form and then evaluate"

Gennadij [26K]

What is the expression?

3 0

3 years ago

What is the final amount if 700 is increased by 4% followed by a further 3% increase?

Archy [21]

Is my Guss is 300 by the fardes I can think of

3 0

2 years ago

A motor club has estimated that a 325 mile car trip will take 6 1/2 hours. What is the club assuming to be the average speed mil

In-s [12.5K]

<u>Answer: </u>

The average speed that the club is assuming is 50 miles per hour

<u>Solution: </u>

We know that Distance = Speed × Time.

Here it is given that distance is 325 miles and the time to cover 325 miles is $6_{2}^{1}$ hours which is equal to $\frac{13}{2}$ hours.

Now to find the average speed mile per hour we use the formula

$\begin{aligned} \text { Speed } &=\frac{\text { Distance }}{\text { time }} \\ &=\frac{325}{\frac{13}{2}} \\ &=\frac{325 \times 2}{13} \end{aligned}$

By cancelling 325 by 13 we get 25

= 25 × 2

= 50 miles per hour

Thus the average speed that the club is assuming is 50 miles per hour.

3 0

3 years ago