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sergeinik [125]
2 years ago
10

Help me plzzzzzzz guyssss

Mathematics
1 answer:
maks197457 [2]2 years ago
5 0

Answer:

1. 75%

2. 20%

3. 20%

4. decrease 5.4%

Step-by-step explanation:

1. 119-68=51, 51/68=0.75

2. 30-24=6, 6/30=0.20

3. 18-15=3, 3/15=0.20

4. 762-721=41, 41/762=0.0538

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4 question in one 65 points
jeka94

Q6.

The slope-intercept form: y = mx + b

m - slope

b - y-intercept

We have: slope m = 3, y-intercept (0, 4) → b= 4

<h3>Answer: y = 3x + 4</h3>

Q7.

2x + 4y = 4     |subtract 2x from both sides

4y = -2x + 4     |divide both sides by 4

y = -0.5x + 1

Only second graph has y-intercept = 1.

<h3>Answer: The second graph.</h3>

Q8.

The point-slope form:

y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}

We have

(-16,\ 8)\to x_1=-16,\ y_1=8\\(4,\ -2)\to x_2=4,\ y_2=-2

Substitute:

m=\dfrac{-2-8}{4-(-16)}=\dfrac{-10}{20}=-\dfrac{1}{2}\\\\y-8=-\dfrac{1}{2}(x-(-16))\\\\y-8=-\dfrac{1}{2}(x+16)

<h3>Answer: The first equation.</h3>

Q9.

It's a vertical line. The equation of a vertical line is x = <em>a</em>, where <em>a</em> is any real number.

<h3>Answer: x = -4</h3>
6 0
3 years ago
Read 2 more answers
Do #11 I need help pleae
ryzh [129]
330 page/(3/4 Hour):==> 330 : 3/4
To solve this division you have to MULTIPLY the 1st term by the reciprocal of the 2nd (the reciprocal of 3/4 is 4/3), so

330 x 4/3 = (330x4)/3 = 440
330 pages were read in 3/4 Hour (given)  & in 1 hour. could be read

3 0
3 years ago
Solve x 2 + 8x + 7 = 0<br> {-1,-7)<br> {1,7)<br> 00
IgorLugansk [536]
X^2 + 8x + 7= 0
(X+7)(X+1)
X=-1,-7
3 0
3 years ago
Help me please I’m almost done ayyayayayatayayy
leva [86]

Answer:

4(5j+3j) is 32j

4(3j) is 12j

5j+3j+9j is 17j

Step-by-step explanation:

5 0
2 years ago
Ms.jones wants to feed each of the children she babysits a half sandwich for lunch. If she babysits 8 children, how many sandwic
insens350 [35]

Answer:

4

Step-by-step explanation:

If she makes 4 sandwiches, she splits the 4 sandwiches among 8 children. 4/8 is 1/2 which is half a sandwich for everyone.

8 0
3 years ago
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