Ask question

Ask question

All categories

2 years ago

11

Using your own words or illustrations, explain the addition rule for equations. (in other words, don't just restate the rule wor

d for word).

1 answer:

Dmitriy789 [7]2 years ago

4 0

Step-by-step explanation:

This rule states that the same value can be added to both sides of an equation without interfering with the solving process of the equation

You might be interested in

I do not understand what number I am supposed to use for “y=4x+__. I thought it would be 6 because that’s how many hexagons are

skad [1K]

Based on the table, it should be 2.
Y=4x+2 works for all x and y values in the table.

8 0

2 years ago

At a book sale, all books cost less than $5.

Arada [10]

Answer: b<5

Step-by-step explanation:

B Represnts the books and 5 is the 5 dollars so then 5 is greater than b and since 5 dollars is greater than the books price then you should be b<5.

this should be right.

Hoped this helped

6 0

2 years ago

Scores from an exam are normally distributed with a mean of 85 and a standard deviation of 5. Suppose 188 students take the exam

charle [14.2K]

The mean is $\mu=85$ and standard deviation is $\sigma=5$ . Then the variable $X\sim N(85,5)$ .

Use substitution $Z=\dfrac{X-\mu}{\sigma}=\dfrac{X-85}{5}$ , then the variable $Z\sim N(0,1)$ .

The probability $Pr(X>80)$ can be calculated in the following way:

for X=80, $Z=\dfrac{80-85}{5} =-1$ and $Pr(X>80)=Pr(Z>-1)$ . From the diagram $Pr(Z>-1)=0.34+0.34+0.135+0.025=0.84$ .

Conclusion: if 188 students take the exam, then 188·0.84=157.92 (157) would receive a score above 80

4 0

3 years ago

Read 2 more answers

Find −315÷134. Write your answer as a mixed number in simplest form.

kipiarov [429]

Answer:

$-2\frac{47}{134}$

Step-by-step explanation:

$-2\frac{47}{134} = -\frac{315}{134}$

$134$ can go into $-315$ twice at the most, so doubling $134$ will give us $268$ , which leaves us with $47$ left over to reach 315, which is why $47$ is the numerator. The remainder is ALWAYS the numerator.

I am joyous to assist you anytime.

3 0

3 years ago

URGENT I NEED HELPPPPP

lorasvet [3.4K]

Answer:

8/15

Step-by-step explanation:

Using Pythagorean Theorem the length of XZ is 15.

tan X = opposite / adjacent = YZ / XZ = 8 / 15.

7 0

3 years ago

Read 2 more answers