PLEASE HELP ASAP!! -13=r/9+8 what does r=?

Answer:

it's c

Step-by-step explanation:

Answer: -1.4, -21/3, 4/5, 21%

Step-by-step explanation:

Answer:

13

Step-by-step explanation:

Answer:13 is the greatest common factor

Step-by-step explanation:

Answer:

all sides will be 20

Step-by-step explanation:

100 divided by 5=20

Answer:

one solution

Step-by-step explanation:

-2x=18

x=-9

Answer:

: Marked price of dinner set = $480. Discount = 18% of $480 = 0.18 × 480 = $86.40.

| Must include: 7Step-by-step explanation:

Answer:

Step-by-step explanation:

The real answer would 28%

Step-by-step explanation:

answer is b

6x-18y=198

Answer:

$1,539.70

Step-by-step explanation:

Given the data :

National average Teachers' salary (NATS)

YEAR:_1960 _ 1970 _ 1980 _ 1990 _ 2000 2010

NATS:4995_8626_15970_31367_41807_55202

AVEAGE SALARY INCREASE PER YEAR BETWEEN 1980 and 1990

Salary in 1980 = $15970

Salary in 1990 = $31367

Average salary increase per year:

Difference in salary / difference in years

$(31367 - 15970) / (1990 - 1980)

= $15397 / 10

= $1539.7

Answer:

KM = 4 units

Step-by-step explanation:

Here, we are to determine the numerical length of KM

since point L is on the line segment;

Then;

KM = KL + LM

Thus;

5x + 4 = 5x + 1 + 3x + 3

5x + 4 = 8x + 4

8x - 5x = 4-4

3x = 0

x = 0/3 = 0

From the question;

KM = 5x + 4

Substitute x = 0

Thus we have;

5(0) + 4 = 4

KM = 4 units

Answer:

5 bananas cost $ .55

Step-by-step explanation:

9x = .99

divide by 9, each banana is $.11

multiply by 5 to get cost.

Answer:

she could by 3 brownies BB and 6 donuts DD

Step-by-step explanation:

369 so that be 3 BB and then the donuts are 1$ so 10 11 12 13 14 15

1 2 3                                                                               1   2  3  4  5  6

Answer:

The inverse of a function is the set of ordered pairs obtained by interchanging the first and second elements of each pair in the original function. In plain English, finding an inverse is simply the swapping of the x and y coordinates.

Step-by-step explanation:

Answer:

-6 is the rate of change per year

Step-by-step explanation:

The amount in dollars decrease by 6 every year.

It went from $27 to $21 to $15 and finally to $9.

Hope I helped you!!

Answer:

The discriminant is -23

The equation has 0 real solution

Step-by-step explanation:

The discriminant of the quadratic equation ax² + b x + c = 0 is Δ = b² - 4ac

Let us use the rule above to solve the question

∵ x² - x + 6 = 0

∴ a = 1, b = -1 and c = 6

∵ Δ = b² - 4ac

∴ Δ = (-1)² - 4(1)(6)

∴ Δ = 1 - 24

∴ Δ = -23

∴ The discriminant is -23

∵ -23 < 0

∴ Δ < 0

∴ The equation has no real solutions

∴ The equation has 0 real solution

Answer:

1 dollar 75 cents or $1.75

Step-by-step explanation:

Answer:

customer saves $7.50

Step-by-step explanation:

10% = $5

5%= $2.50

therefore 15% = $7.50

Answer:

the customer saves $7.50

Step-by-step explanation:

Trust me its right :)

Answer: 1350 envelopes

Step-by-step explanation:

From the question, Leon packs thirty business envelopes in each of twenty-five boxes. The total business envelopes here will be:

= 30 × 25

= 750

Leon picked thirty regular envelopes in each of twenty boxes. The total regular envelopes will be:

= 30 × 20

= 600

Total envelopes will now be:

= 750 + 600

= 1350 envelopes

Answer:

50m²

Step-by-step explanation:

10×5=50

Answer: 2, 1

Step-by-step explanation:

Whenever you rotate a point on a graph 90 degrees you go from (x,y) to (y,-x)

so -1, 2 goes to 2, 1

Answer:

4/13 < 6/13

Step-by-step explanation:

I will assume you want to see which one is greater.

We don't need to find common denominators since they already have one which is 13.

We know that 4 < 6 so this means that 4/13 < 6/13

Best of Luck!

Answer:

64.4

Step-by-step explanation:

Because the nearest one is the 4 in 0.4 and 4 isn't enough to make it a 5

search it up its 1e+81.

Answer:

Step-by-step explanation:

10000000000000000000000000000000000000000000000

times

100000000000000000000000000000000000.1

is too much for the calculator

and it will do this in return for asking this.

1e+81

Hope this helps! <3

Answer:

19, 18, 15.5

Step-by-step explanation:

b(-2) =

18 - 0.5(-2)

18 - (-1)

b(x) = 19

b(0) =

18 - 0.5(0)

18 - 0 =

b(x) = 18

b(5) =

18 - 0.5(5)

18 - 2.5

b(x) = 15.5

Answer: y = -6x - 2  

Step-by-step explanation:

54x + 15 = -3(3y + 1)   To solve for y distribute on the right side to get,

54x + 15 = -9y -3        Add 3 to both sides

      +3             +3

54x  + 18 = -9y        Divide each term by -9 on each side.

y = -6x - 2

Answer______

54x + 15 = -3 (3y + 1)

54x + 15 = -9y -3

+3 +3

54x + 18 = -9y

y = -6x - 2

Answer:

Darlene's net proceeds after the broker fees are taken out is $8,279.

Step-by-step explanation:

From the question, the following can be obtained:

Basic cost of purchase of the stock = $20,000

Broker fee related to purchase = Basic cost of purchase of the stock * 1.5% = $20,000 * 1.5% = 300

Total cost of purchase of the stock = Basic cost of purchase of the stock + Broker fee related to purchase = $20,000 + 300 = $20,300

Selling price = $28,600

Broker fees related sales = 21

The net proceed can therefore be calculated as follows:

Net proceeds = Selling price - Broker fees related sales - Total cost of purchase of the stock  = $28,600 - $21 - $20,300 = $8,279

Therefore, Darlene's net proceeds after the broker fees are taken out is $8,279.

Answer:

B

Step-by-step explanation:

1/2 y +x, well, no one reads these so...The Answer is B

Answer:

$0.7

Step-by-step explanation:

$25.20 ÷ 36 = $0.7 per mile

Answer:

Step-by-step explanation:

0,7

Answer:

-4√5

Step-by-step explanation:

-√ 5 can be written as -1√ 5.

from there it is simple subtraction of the radicles

-1-3=-4   therefore, -1√ 5 - 3√ 5=- 4√ 5