2z - 6 = 2(2 + 2) - 10

Answer:

d.  The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.

Step-by-step explanation:

This would be a function as long as one x-value doesn't correspond to two y-values. If two x-values correspond to one y-value though, it still represents a function.

ANSWER

two inputs can have the same output but two different outputs can't have the same input so this does represent a function and is therefore D

Answer:

1.19

Step-by-step explanation:

Answer:

n>5

Step-by-step explanation:

move the 20 onto the other side of the > by subtracting 20 on the left side and adding 20 on the right side

now you have

-3n>7n-20

move the 7n onto the other side the same way. subtract 7n from one side and add it to -3n. now you have

4n>20

this is called adding similar terms or inverse operations what ever you wanna call it. Now you divide N by 4. This is because 4n can be simplified to 4×N and the opposite of multiplication is division. you do the same on the other side.

n/4>20/4.

you are left with n>5

Answer:

n<2

Step-by-step explanation:

Subtract 20 from both sides 20-3n-20>7n-20

Simplify -3n>7n-20

Subtract 7n from both sides -3n-7n>7n-20-7n

Simplify again -10n>-20

multiply both sides by -1 (-10n)(-1) < (-20)(-1)

Simplify 10n<20

Divide both sides by 10 Then you get your answer

Answer:

16.59

Step-by-step explanation:

21 x .79

(7 x 3 = 21)

Answer:

y = 10x^2 + x +21

Step-by-step explanation:

Step-by-step explanation:

garden a:

perimeter=2xlength+2xwidth = 2x(5x(2x-3))+2x(2x-3) = 20x-30 + 4x-6 = 24x-36 / 12(2x-3) feet

garden b:

perimeter= 5x+5 + 4x+2 + 8x-8 = 17x - 1 feet

Answer:

Step-by-step explanation:

garden A

Width (W) = 2x - 3

Length (L) = 5(W)

               = 5 (2x - 3)

               = 10x - 15

Perimeter A = 2L + 2W  (perimeter of a rectangular garden)

                   = 2(10x - 15) + 2(2x - 3)

                   = 20x - 30 + 4x - 6

                   = 24x - 36

garden B

side 1 = 5x + 5

side 2 = 4x + 2

side 3 = 8x - 8

Perimeter B = sides (1 + 2 + 3)  

                   = 5x+5 + 4x+2 + 8x-8

                   = 5x + 4x + 8x + 5 + 2 - 8

                   = 17x - 1

Answer:

79.5

Step-by-step explanation:

35 correct = 35x2.5=87.5

32 wrong = 32x-0.25=-8

no. of pts = 87.5+(-8) = 79.5

Answer:

Final answer=$307.50

Step-by-step explanation:

Given:

Money Enrique makes per hour = $9.25

Total time he worked last week = 30 hours

Commission he got for $300 of sales = 10%

So, total amount of money he made in the last week is,

(Wage he gets per hour)×(No. of hours he worked)

=$9.25×30

=$277.50

Now, we have to find the money he made from the sales with commission of 10%,

= (Money made from sales)×(Commission %)

=$300×10%

=300×10/100

=3×10/1

=$30

Now we calculate the total money he made,

(Money made by working)+(Money from commission)

=$277.50+$30

=$307.50

∴Enrique made $307.50 in total from the last week.

Enrique made $307.50 in total from the last week.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Enrique makes per hour = $9.25

He worked 30 hours in a week.

Commission he got for $300 of sales = 10%

Total money

=(Wage he gets per hour)×(No. of hours he worked) + money made from the commission

=$9.25×30 + (Money made from sales)×(Commission in percentage)

=$277.50 + $300×10%

=  277.50 + 300×10/100

=$307.50

Therefore, Enrique made $307.50 in total from the last week.

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Answer:

0

Step-by-step explanation:

The sum of any number and it's additive inverse should always be zero. Thus, 12 1/4 + (-12 1/4) = 0

Hope this helps!

Answer:

Brandon paid $12.00.

Step-by-step explanation:

To solve, you simply must multiply 15 by 0.8. You multiply by 0.8 and not 0.2 because you are calculating 80% of the original cost, which is the same thing as 20% off.

15 x 0.8 = 12

I hope this helped you! If it did, please consider rating my answer, pressing thanks, and marking as Brainliest. Have a great day!

Answer:

?

Step-by-step explanation:

The solution of inequality 3x + 12 – 6x ≤ –9 will be greater than or equal to 7.

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

The inequality is given below.

3x + 12 – 6x ≤ –9

Simplify the equation, then the value of 'x' is calculated as,

3x + 12 – 6x ≤ –9

6x – 3x ≥ 12 + 9

3x ≥ 21

x ≥ 21 / 3

x ≥ 7

The solution of inequality 3x + 12 – 6x ≤ –9 will be greater than or equal to 7.

The solution is shown on the number line.

More about the inequality link is given below.

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Answer:

the answer is going to be D

Joy will make 5 ornaments this weekend.

Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

WE have been given that Joy made 2 ornaments in 6 hours.

This weekend, Joy plans to spend a total of 15 hours making ornaments.

If joy works at the same rate Therefore,

2 ornaments is 6 hours = 2/6 ornaments/hour

= 1/3 ornaments/hour

Thus 1/3 ornaments/hour × 15 hours = 5 ornaments

Hence, She will make 5 ornaments this weekend.

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Answer:

789

Step-by-step explanation:

Answer:

Step-by-step explanation:

The points loosed in the first round  l = 10 points

Points gained in the second round g = 14points

Let the points loosed be negative while that gained be positive, hence;

l = -10 points

g = +14 points

Change in the integers = l+g

Change in the integers = =-10 + 14

Change in the integers = 4points

Answer:

13.5 m tall

Step-by-step explanation:

divide 44.55 by 3.3

Answer:

Step-by-step explanation:

800+20%

20%= (20/100)

800/100=8*20=160

add to original price= 800+160=960

Answer:

c = 9 - 17d

Step-by-step explanation:

9-c = 17d

9-c+c= 17d + c (add c to both sides)

9 = 17d + c (Simplify)

9 - 17d = 17d - 17d + c (subtract 17d from both sides)

9 - 17d = c (Simplify)

The equation can be solved for c as c = 9 - 17d.

A linear equation can be solved by equating the LHS and RHS of the equation following some basic rules such as by adding or subtracting the same numbers on both sides and similarly, doing division and multiplication with the same numbers.

The given equation is 9 - c = 17d.

It can be solved in terms of c as follows,

9 - c = 17d

Subtract 9 from both sides to get,

9 - c - 9 = 17d - 9

=> -c = 17d - 9

Multiply both sides by -1 to get,

-1 × -c = (17d - 9) × -1

=> c = 9 - 17d

Hence, the given equation can be written in terms of c as c = 9 - 17d.

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Answer:

450 Km

Step-by-step explanation:

90 Km/hr x 5 hr = 450 Km

I hope this helped and good luck!

Answer: Distance= 450km

Step-by-step explanation:

90 times 5= 450

Answer:

Yes.

Step-by-step explanation:

Answer:

yes, they are congruent

Step-by-step explanation:

Answer:

A. 30 meters

Step-by-step explanation:

C=2πr

188=2πr

29.92 = r

≈ r

I believe this is algebra and if I correctly remember you have to look at the related numbers and take the symbol to the number on the left and make a problem out of it, if you understand what I mean. so 5x + 2x = 7x and 6 - 3 = 3.

I hope you understand what I said and if you do it should help you in future questions. The bold numbers are the answer.

Answer:

$32

Step-by-step explanation:

0.8*40