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Serhud [2]
3 years ago
9

The solution of v + 17 < or equal to 20

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
4 0
Remember you can do anything to an equaiton as long as you do it to both sides

v+17≤20
minus 17 both sides
v+17-17≤20-17
v+0≤3
v≤3
You might be interested in
What is <br><br> 3x+2y=-13<br> 3x+4y=1
Zepler [3.9K]

Answer:

The values are

x = -25/9 = -2 7/9

y = 7/3 = 2 1/3

Step-by-step explanation:

3x + 2y = -13 --------eqn 1

3x + 4y = 1-------------eqn2

Using eqn 2 to get the value of y

3x + 4y = 1

4y = 1 - 3x

Dividing both sides by 4,to get y

4y/4 =( 1 -3x) / 4

y = (1 - 3x) / 4

Since we've gotten the value for y, substitute the value into eqn 1

3x + 2y = -13

3x + 2(3x - 1)/4 = -13

Opening the bracket

3x + (6x - 2)/4 = -13

LCM = 4

(12x + 6x - 2) / 4 = -13

18x - 2 / 4 = -13

Then we cross multiply

18x - 2 = -13 * 4

18x - 2 = - 52

18x = -52 + 2

18x = -50

Divide both sides by 18, to get the value of x

18x/18 = -50/18

x = -25/9

or x = -2 7/9

The value of x is now known, so let's go back to eqn 2

Substitute x = - 25/9

3x + 4y = 1

3(-25/9) + 4y = 1

Open the bracket

-75/9 + 4y = 1

Make y the subject of the formula

4y = 1 + 75/9

LCM = 9

4y = (9 + 75)/ 9

4y = 84/9

To get y, divide both sides by 4

4y/4 = 84/9 / 4/1

y =

Note : when division changes to multiplication, it always be in its reciprocal form

y = 84/9 / 1/4

y = 84 * 1 / 9 *4

y = 84/ 36

y = 7/3

Or

y = 2 1/3

4 0
3 years ago
You roll a number cube one time. What is the probability that you roll a 6 or 4? Enter your answer as a fraction in simplest for
garri49 [273]

Answer:

1/3 because there are 6 numbers on a number cube and the probability of rolling a 6 or 4 is 2/6 and simplified it would be 1/3

Step-by-step explanation:

if it is right, please mark as brainliest

3 0
2 years ago
A high school administrator is interested in determining the relationship between high school students' final grades in geometry
Radda [10]

Answer: c. On average, a 1 percentage point difference in chemistry score is associated with a 0.919 percentage point difference in geometry score

Step-by-step explanation:

Given that:

Slope value = 0.91857341

The dependent and independent variables are ;

Dependent Variable: Geometry

Independent Variable: Chemistry

Slope is the rate of change in the dependent variable per unit change in the independent variable.

Hence, from the information given, we can conclude that for every 1% change in chemistry score (independent variable), there is a corresponding approximately 0.919% change in geometry score (dependent variable).

6 0
3 years ago
Ok can someone please help me? i really need help and no one will help me, its easy middle school math
pashok25 [27]

Answer:

Step-by-step explanation:

7) A

8) D

9) B

10) A

6 0
3 years ago
The side lengths of two similar solids are in the ratio 1:3<br> What is the ratio of the areas?
kkurt [141]

Answer:

length =  \frac{1}{3}  \\ area =  ( { \frac{1}{3} )}^{2}   \\  =  \frac{1}{9}  \\ ratio \: of \: areas = 1:9

4 0
3 years ago
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