Please help me this is for a test. Thank you so much whoever answers this.

Mathematics

1 answer:

Alenkinab [10]3 years ago

5 0

Answer: Pretty sure the answer is 3.

Step-by-step explanation:

$\frac{2(4+7)-7}{5}$

$\frac{2(11)-7}{5}$

$\frac{22-7}{5}$

$\frac{15}{5}$

You might be interested in

Solve for b. ab+c= d. b = a + b = C-d) - (0-0)

Nana76 [90]

Answer:

Step-by-step explanation:

ab + c = d....subtract c from both sides

ab = d - c ....now divide both sides by a

b = (d - c) / a....or could also be b = (d/a) - (c/a)

3 0

3 years ago

A line that includes the point (7,0) has a slope of 1. What is its equation in slope-intercept form?

LiRa [457]

Answer:

$y = x-7$

Step-by-step explanation:

To write the equation of the line in slope-intercept form, use the slope-intercept formula, $y = mx +b$ . Find real values for the $m$ and $b$ and substitute them into the formula.

1) We know that $m$ represents the slope, so substitute 1 in its place. However, we still need to find $b$ , or the y-intercept. So, along with substituting that 1 in for $m$ , substitute the x and y values for (7,0) for the x and y in the formula as well. Then, isolate $b$ to find its value:

$y = mx + b\\0 = (1)(7)+b\\0 = 7 + b\\-7 = b$

So, $b$ = -7.

2) Now, just substitute the found values for $m$ and $b$ into the slope-intercept formula. Remember that the slope is $m$ , so substitute 1 in, and $b$ is -7, so substitute -7 in its place as well. This gives the following equation in slope-intercept form:

$y = 1x -7$ or $y = x-7$