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4 years ago

PLEASE HELP ME FAST. WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER

Mathematics

1 answer:

Sholpan [36]4 years ago

6 0

Slope is the change in Y over the change in. X

Using two of the given points:

Slope = 70-45 / 25-10

Slope= 25/ 15

Slope = 5/3

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9th grade alg 1 number 43 and work please!

Darya [45]

Answer:

The rule is y = -7x + 5

→ Other values of x;

-9

→ Other values of y;

5
-2
-9
-12
28
68
-170

Step-by-step explanation:

» Take points (1, -2) and (3, -12) from the table.

☑ General equation of a line is y = mx + c

m is the slope
c is y-intercept

✍ For slope, m :

${ \tt{slope = \frac{ - 12 - 2}{3 - 1} }} \\ \\ { \tt{slope = \frac{ - 14}{2} }} \\ \\ { \tt{m = - 7}}$

✍ For y-intercept, c :

${ \tt{y = mx + c}}$

» Taking point (1, -2):

${ \tt{ - 2 = (1 \times - 7) + c}} \\ { \tt{c = - 2 + 7}} \\ { \tt{c = 5}}$

${ \boxed{ \tt{y = - 7x + 5}}}$

3 0

3 years ago

Read 2 more answers

(02.01) Solve for x: 3x - 5 = 2x + 6. (1 point) a -1 d -11

sp2606 [1]

Answer:

Step-by-step explanation:

3x - 5 = 2x + 6

x - 5 = 6

x = 11

8 0

3 years ago

Will give brainliest

kompoz [17]

Answer:

Why the rest of the answers or bubbles are hidden???

Step-by-step explanation:

5 0

3 years ago

Terrence took a total of 63 quizzes over the course of 7 weeks. After attending 10 weeks of school this quarter, how many quizze

Ulleksa [173]

Answer:

90 quizzes

Step-by-step explanation:

In 7 weeks, 63 quizzes

In 10 weeks, x quizzes

Making a proportion,

7/10 = 63/x

Cross multiplying,

7x = 630

Dividing by 7 on both sides,

x = 90 quizzes

3 0

3 years ago

99 students choose to attend one of three after school activities: football, tennis or running.

nordsb [41]

Answer: $\dfrac{49}{99}$

Step-by-step explanation:

There are 61 boys --> 38 girls

A) 19 chose football: 5 are girls --> 14 are boys

B) 38 girls: 28 chose running, 5 chose football --> 5 girls chose tennis

C) 31 students chose tennis: 5 are girls --> 26 are boys.

D) 61 boys: 14 chose football, 26 chose tennis --> 21 boys chose running.

$\large\boxed{\begin{array}{l|cc||c}&\underline{Boys}&\underline{Girls}&\underline{Total}\\Football&14&5&19\\Tennis&26&5&31\\\underline{Running}&\underline{\quad 21\quad}&\underline{\quad 28\quad}&\underline{\quad 29\quad}\\Total&61&38&99\end{array}}$

Total running = 21 boys + 28 girls = 49

Total students = 99

$\dfrac{\text{Total running}}{\text{Total students}}=\large\boxed{\dfrac{49}{99}}$

3 0

3 years ago