Solve the inequality -3/5 < r -3/5 how to solve

Answer:

Yes every square is a rhombus, but not every rhombus is a square

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

100-3t=76

-3t=-24

t=8

Answer:

t=8

Step-by-step explanation:

100 - 3t = 76

-100        -100

-3t = -24

/-3    /-3

t = 8

Hope this helps!

Answer:

rational since all decimals that terminate are rational here is a sheet to help

6.825 is rational number.

A rational number is a number that is of the form p/q where p and q are integers and q is not equal to 0. The set of rational numbers is denoted by Q.

Given number: 6.825

Now, we know Terminating decimals like 0.35, 0.7116, 0.9768, etc., are rational numbers.

So, we can see that 6.825 is terminating decimal.

Learn more about rational and irrational number here:

https://brainly.com/question/24398433

#SPJ2

Answer:

20 times 4

Step-by-step explanation:

Han's team has 4 players.

A perfect score is the maximum possible score. Each player can score up to 20 points in each round, so 20 points is the maximum score.

If each of the 4 players scores 20 points, then the total score for the team is:

20 *4

That is the expression for the team's points.

Answer: 20*4

Answer:14

Step-by-step explanation:

X-6=8

+6. +6

X=14

Answer:

-64

Step-by-step explanation:

Answer:

the answer is c

Step-by-step explanation:

7(2+5x)=3x+14

14+35x=3x+14

35x-3x=14-14

32x=0

32x 32x X=0

Answer:

Step-by-step explanation:

Given the expression 5(-3/7)

On simplifying, we have:

[tex]= 5 \times \frac{-3}{7}\\ \\= \frac{5 \times -3}{7}\\ \\= \frac{-15}{7}[/tex]

Express as a mixed fraction

[tex]= \frac{-15}{7}\\= -2 \frac{1}{7}[/tex]

Hence the correct answer is -2 1/7

Answer:

52

38

Step-by-step explanation:

Answer:

janet can plant 36 per hour Amy can plant 34per hour

Step-by-step explanation:

Answer:

Janet's is 36 feet of carrots per hour

Amy is 34 feet of carrots per hour

Step-by-step explanation:

for Janet I did 60÷15=4(thqt is one hour) then 9×4=36 which is the answer

for Amy I did 17×2=34 because she does 17 in 40 mins which is half an hour so you would double to make it one hour

Answer/Step-by-step explanation:

Length of rectangular garden = 12.63 m

Width of rectangular garden = 3.28

Part A: Perimeter of garden if the length and height is rounded to nearest whole number.

12.63 rounded to nearest whole number = 13

3.28 rounded to nearest whole number = 3

Equation that shows her estimate would be: C. 13 + 3 + 13 + 3 = 32 meters

Part B: Perimeter of garden if the length and height is rounded to nearest tenth.

12.63 rounded to nearest tenth = 12.6

3.28 rounded to nearest tenth = 3.3

Equation that shows this estimate would be: B. 12.6 + 3.3 + 12.6 + 3.3 = 31.8 meters

Part C: Exact Perimeter of her garden.

Exact perimeter would be 12.63 + 3.28 + 12.63 + 3.28 = 31.82 meters

Part D:

Difference between 31.82 and the exact perimeter is 0.02, while difference between 32 and the exact perimeter is 0.18.

Therefore:

The numbers rounded to the nearest TENTH are closer because 31.8 meters is closer to the exact perimeter than 32 meters.

Answer:

Junior PSAT

Training Packet

2016-17

Math Department  

Answer Key

Section 3: Math Test — No Calculator

QUESTION 1.

Choice C is correct. Subtracting 6 from each side of 5x + 6 = 10 yields 5x = 4.

Dividing both sides of 5x = 4 by 5 yields x =

_4

5

. Te value of x can now be

substituted into the expression 10x + 3, giving 10 ( _4

5 ) + 3 = 11.

Alternatively, the expression 10x + 3 can be rewritten as 2(5x + 6) − 9, and

10 can be substituted for 5x + 6, giving 2(10) − 9 = 11.

Choices A, B, and D are incorrect. Each of these choices leads to 5x + 6 ≠ 10,

contradicting the given equation, 5x + 6 = 10. For example, choice A is

incorrect because if the value of 10x + 3 were 4, then it would follow that

x = 0.1, and the value of 5x + 6 would be 6.5, not 10.

QUESTION 2.

Choice B is correct. Multiplying each side of x + y = 0 by 2 gives 2x + 2y = 0.

Ten, adding the corresponding sides of 2x + 2y = 0 and 3x − 2y = 10 gives

5x = 10. Dividing each side of 5x = 10 by 5 gives x = 2. Finally, substituting

2 for x in x + y = 0 gives 2 + y = 0, or y = −2. Terefore, the solution to the

given system of equations is (2, −2).

Alternatively, the equation x + y = 0 can be rewritten as x = −y, and substituting x for −y in 3x − 2y = 10 gives 5x = 10, or x = 2. Te value of y can then

be found in the same way as before.

Choices A, C, and D are incorrect because when the given values of x and

y are substituted into x + y = 0 and 3x − 2y = 10, either one or both of the

equations are not true. Tese answers may result from sign errors or other

computational errors.

QUESTION 3.

Choice A is correct. Te price of the job, in dollars, is calculated using

the expression 60 + 12nh, where 60 is a fxed price and 12nh depends on the

number of landscapers, n, working the job and the number of hours, h, the job

takes those n landscapers. Since nh is the total number of hours of work done

when n landscapers work h hours, the cost of the job increases by $12 for each

hour a landscaper works. Terefore, of the choices given, the best interpretation

of the number 12 is that the company charges $12 per hour for each landscaper.

Choice B is incorrect because the number of landscapers that will work each

job is represented by n in the equation, not by the number 12. Choice C is

incorrect because the price of the job increases by 12n dollars each hour,

which will not be equal to 12 dollars unless n = 1. Choice D is incorrect

because the total number of hours each landscaper works is equal to h. Te

number of hours each landscaper works in a day is not provided.

QUESTION 4.

Choice A is correct. If a polynomial expression is in the form (x)2

+ 2(x)(y) +

(y)2

, then it is equivalent to (x + y)2

. Because 9a4

+ 12a2

b2

+ 4b4

= (3a2

)2

+

2(3a2

)(2b2

) + (2b2

)2

, it can be rewritten as (3a2

+ 2b2

)2

.

Choice B is incorrect. Te expression (3a + 2b)4

is equivalent to the product

(3a + 2b)(3a + 2b)(3a + 2b)(3a + 2b). Tis product will contain the term

4(3a)3

(2b) = 216a3

b. However, the given polynomial, 9a4

+ 12a2

b2

+ 4b4

,

does not contain the term 216a3

b. Terefore, 9a4

+ 12a2

b2

+ 4b4 ≠ (3a + 2b)4

.

Choice C is incorrect. Te expression (9a2

+ 4b2

)2

is equivalent to the

product (9a2

+ 4b2

)(9a2

+ 4b2

). Tis product will contain the term (9a2

)

(9a2

Answer:

that looks hard

Step-by-step explanation:

b

Answer:

y=-3x+2

Step-by-step explanation:

Answer:

8/20= 4/5

25/60= 5/12

Step-by-step explanation:

8÷4

Answer:

25/60 = 5/12

8/20 = 2/5

The Ratios do not form a proportion

Step-by-step explanation:

25/60:

25 ÷ 5/60 ÷ 5

= 5/12

8/20:

8 ÷ 4/20 ÷ 4

= 2/5

5/12 ≠ 2/5

The ratios are not proportional.

Answer:

2:1

Step-by-step explanation:

Answer:

2 bananas per apple

Step-by-step explanation:

Answer:

the 6 inch is a better deal because it is 55 cents per inch while the 12 inch is 60 cents per inch

Answer:

identity    

Step-by-step explanation:

Answer:

identity

Step-by-step explanation:

Answer:

1/2h=W

Step-by-step explanation:

1 liter/2 hours

1/2 liter/hour

W=Amount of water lost

H=hours

Answer:

w=1/3h

Step-by-step explanation:

Answer:

It won't because the area is length times height. So 11 x 11. So some of the car will be hanging out of the garage.

Step-by-step explanation:

Answer:

The strands change color at the same time again after 90 seconds

Step-by-step explanation:

We are told:

Strand 1: changes between red and blue every 15 seconds.

Strand 2: changes between green and gold every 18 seconds.

To solve for this question, we use the LCM method.

Step 1

List multiples of each number until the first common multiple is found.

Multiples of 15:

15, 30, 45, 60, 75, 90, 105, 120

Multiples of 18:

18, 36, 54, 72, 90, 108, 126

Therefore,

LCM(15, 18) = 90

The first common multiple is 90, and this is the lowest common multiple.

Therefore, the strands will change color at the same time again after 90 seconds.

Given:

In each of the four relations below, the x values represent inputs and the y values represent the corresponding outputs.

To find:

The relation which does not represent a function.

Solution:

A relation is a function if there exist a unique output for each input.

In options A, B and C, we get unique output for each input.

In option D, we get two outputs y=4 and y=-4 for input x=3.

Since, there exist more than one output values for a single input value, therefore it is not a function.

Therefore, the correct option is D.

Answer:

The correct answer for this question is that the unit rate is 5:1.

Step-by-step explanation:

We can work this out by simplifying down the 2 commercials to every 10 songs ration, so that 10:2 becomes 5:1. We can work this out by halving the original ratio to simplify it.

Answer:

90

Step-by-step explanation:

Answer:

x=95 degrees

Step-by-step explanation:

All of the angles in a triangle add up to 180, so 45+50+(180-x)=180.

Open the parenthesis, and you get 45+50+180-x=180.

Then subtract 180 from both sides, so 45+50-x=0.

Simplify that to 95-x=0, and add x to both sides.

x=95

Also, you can use exterior angles theorem, which states that 45+50=x.

That's the shorter way.

Answer:

Kindly check explanation

Step-by-step explanation:

Given that:

Cost function of banner advertisement:

C(n) = 0.30n + 5.00

n = average number of hits per hour

5 = flat rate

From the function, C(n), the cost per hit is the slope value of the function ; which is 0.30

1.) If the cost of pop-up advert will double the cost per hit, the cost function for pop-up advert will be :

D(n) = 2(0.30n) + 5

D(n) = 0.60n + 5.00

B.) This change in cost per hit has resulted in change in slope which is defined as :

[Rise / run = vertical change / horizontal change].

Hence, both vertical and horizontal change has occurred.

Answer:

The answer is 69 degrees.

Step-by-step explanation:

All you have to do is take the higher temperature and subtract it by the lower one.

Answer:

Step-by-step explanation:

2m - 7 + m = 10 + 3m

3m - 3m = 10 + 17

0 = 17

therefore, there is no solution

Answer: no solution

Like the other answer said, no solutions avaliable.

Answer:

Step-by-step explanation:

so yeah I guess