pls help!!!!! due right now:(

Answer:

A = 2w² - 5w

150 sq.cm

Step-by-step explanation:

Let the length be L and width be w

If the length of a rectangle is 5 centimeters less than 2 times the width, then;

L = 2w - 5

Area of the rectangle A = Lw

Since L = 2w - 5

A = (2w-5)w

Expand

A = 2w² - 5w

b) if w = 10cm

A = 2w² - 5w

A = 2(10)² - 5(10)

A = 200 - 50

A = 150 sq.cm

Hence the required area is 150 sq.cm

Answer

A 7/10

Step-by-step explanation:

if you make it even, you double the 4/5 to make it a 8/10, if you every have a number that is like 4/6-2/18, you triple the 4 to make 12, and triple the 6 to make it 18. so you now have 12/18-2/18=10

So 8/10-1/10=7/10

Answer:

as a decimal it is 0.166667 as a percent it is 16.666667%.

Answer: D.

Step-by-step explanation:

The way to know if it is “greater than or equal to” opposed to jsut greater than is to look at the dot. If it is filled in it is “equal to” if not it isn’t.

9514 1404 393

Answer:

  6300 m³

Step-by-step explanation:

The volume of the pyramid is given by the formula ...

  V = 1/3s²h

where s is the side length of the square base, and h is the height.

  V = 1/3(30 m)²(21 m) = 6300 m³

The approximate volume of the pyramid is 6300 m³.

Answer:

Tom's height = x = 64 inches

Sally's height = y = 60 inches

Step-by-step explanation:

Let us represent

Tom's height = x

Sally's height = y

Tom is 4 inches taller than Sally

x = y + 4

Together their heights equal 124 inches

x + y = 124

We substitute y + 4 for x

y + 4 + y = 124

2y + 4 = 124

Collect like terms

2y = 124 - 4

2y = 120

y = 120/2

y = 60

Solving for x

x = y + 4

x = 60 + 4

x = 64

Therefore,

Tom's height = x = 64 inches

Sally's height = y = 60 inches

Answer: 27%

Step-by-step explanation:

Answer:

The volume of the cereal box is 276.25 inches

Answer:

59.5

Step-by-step explanation:

30% of 85 is 25.5

85-25.5=59.5

Answer:

C

Step-by-step explanation:

A (15-10)×(4+3)=-35

B (15-5)×(4-3)=-5

C (15+10)×(4+3)=135

D (15+10)×(4-3)=25

Answer:

105

Step-by-step explanation:

sry if my answer is wrong

Answer:

LCM=Least Common Multiple

Step-by-step explanation:

Let's use this:

1. LIST THE FIRST  MULTIPLES OF 15 AND 21. UNTIL YOU SPOT  A COMMON MULTIPLE

15:30, 45, 60,75, 90, 105,  120,

21:42, 63, 84, 105

105

Yeah!  105 is the LCM of these 2 numbers!

I hope this helps:)

Answer: 2.5%

Step-by-step explanation:

60 divided by 24 equals 2.5

Answer:

24

Since they washed a total of 60 cars, then according to the question they washed 40%(40 per cent) of 60 cars on Sunday.

Per

c

e

n

t

is simply per

h

u

n

d

r

e

d

or out of

h

u

n

d

r

e

d

.

We have to find out 40% of 60, which is

40

100

×

60

This is equal to

2400

100

=

24

00

1

00

=

24

Step-by-step explanation:

please follow me and make me brainlist

Answer:

reflection over the y axis

Step-by-step explanation:

Answer:

8"

Step-by-step explanation:

320/40 = 8"

Answer:

Lucas monthly net pay is $1758

Step-by-step explanation:

Lucas works for a salary of $2,396 per month.

His deductions include $360 of federal income tax,

$148 for Social Security,

$35 for Medicare, and

a $95 insurance premium.

Now,

2396 - 360 - 148 - 35 - 95 = 1758

Thus, Lucas monthly net pay is $1758

-TheUnknownScientist

right angle is always 90

total inside a triangle is always 180

35 + 90 = 125

180 - 125 = 55

Answer:

there missing is equal to 15

hope it will help you

Answer:

It is 4.5

Step-by-step explanation:

You can estime so 82 as 80 and 352 and 350 and the so the clossest is 4.5

Answer:

Cups = 24

Plates = 48

Balloons = 12

Total = 84

Step-by-step explanation:

Serena's mom is planning her birthday party. She bought balloons, plates, and cups. Serena's mom brought twice as many plates as cups. The number of balloons Serena's mom bought was half the number of cups. If Serena's mom bought 84 items, how many of each item did she buy.

Let

c = number of cups

Serena's mom bought twice as many plates as cups.

2c = number of plates

number of balloons Serena's mom bought was half the number of cups

0.5c = the number of balloons

Total items = 84

c + 2c + 0.5c = 84

3.5c = 84

Divide both sides by 3.5

3.5c / 3.5 = 84 / 3.5

c = 24

c = number of cups = 24

2c = number of plates = 2 * 24 = 48

0.5c = the number of balloons = 0.5*24 = 12

Cups = 24

Plates = 48

Balloons = 12

Total = 84

Answer:

24/60 = 2/5

Step-by-step explanation: dont have one

Answer:

2/5, or 40%

Step-by-step explanation:

The experimental probability is not what the mathematical probability of something always is of happening, but rather the probability based on the pattern of given data in a given experiment. So rather than giving the likelihood of picking a red card on the next pick, you would instead give the "likelihood" of picking a red card based on the trend found in the given data. This would amount to 24/60 which, simplified, would be 2/5, or 40%.

I would appreciate Brainliest, but no worries.

Answer:its just going up

Step-by-step explanation:

Answer:

The numbers are going up.

Answer:12 is the answer for your question

Answer:

Equal to 43 is the answer

Complete question :

Polly’s Pasta and Pizza Supply sells wholesale goods to local restaurants. They keep track of revenue earned from selling kitchen supplies and food products. The function K models revenue from kitchen supplies and the function F models revenue from food product sales for one year in dollars, where t represents the number of the month (1 – 12) on the last day of the month.

K(t)=15t^3–312t^2+1600t+1100

F(t)=36t3–720t2+3800t–1600

In which month was her revenue from food products the greatest? The least?

Answer:

greatest revenue = 4384

Leat revenue = 400 ; October

Step-by-step explanation:

Using the model :

Claculating the revenue from. Food sales from January through December :

F(t)=36t^3–720t^2+3800t–1600

Put t = 1, 2, 3,.. 12 for January through December

t = 1

F(1)=36(1^3) - 720(1^2) + 3800(1) - 1600 = 1516

t = 2

F(2) = 36(2^3) - 720(2^2) + 3800(2) - 1600 = 3408

Inputting the t values up to 12 to cover for January thkorugh December :

We have the data:

t1 = 1516

t2 = 3408

t3 = 4292

t4 = 4384

t5 = 3900

t6 = 3056

t7 = 2068

t8 = 1152

t9 = 514

t10 = 400

t11 = 996

t12 = 2528

Hence, greatest revenue = 4384 (month of April)

Least revenue is at t10(October) ; Lowest revenue is at t 10 = 400

Answer:

Independent then dependent

Step-by-step explanation:

Yes. YES!

Answer:

D.

d = 3t; 90 mi

Step-by-step explanation:

Bicycling A bicyclist traveled at a constant speed during a timed practice period. Write a proportion to find the distance the cyclist traveled in 30 min.

elapsed time    distance

10 min               3 mi

25 min               7.5 mi

Graph it. :)

Start at (0,0), then at 10 min. on the x-axis, go 3 spaces up on the y-axis and plot a point. Do the same for 25 min. and 7.5 miles. Draw a line through all of those points, and see where the line hits on the y-axis when the x-axis is at 30 min. :)

If two things vary directly it means their ratio is a constant.  Therefore from the formula rt=d. r=d/t,  r=3/10 or 7.5/25  which reduces to 3/10.  This is the constant speed,the lable is mi/min.  Now use  (d/30)=(3/10)  and solve for d.  Cross multiply and 10d=90, or d=9 mi

Using the information given, the distance formular = 0.3t ; distance covered in 30 minutes = 9 miles

Since the speed is constant :

We could use either of distance and elapsed time values to create an equation :

Elaspsed time - - - - Distance

10 minutes _____ 3 miles

Recall :

Distance covered = speed × time

Distance covered = speed × time Speed = distance / time

Speed of bicyclist is thus :

(3 miles / 10 minutes) = speed

Speed = 0.3 miles per minute

Hence,

Distance = 0.3 × time

For a travel time of 30 minutes ;

Distance covered = 0.3 × 30 = 9 miles

Hence, distance formular = 0.3t ; distance covered in 30 minutes = 9 miles

Learn more : https://brainly.com/question/20881088?referrer=searchResults

Answer:

The answer is 18

Step-by-step explanation:

6 × 3=18

Hope it helped!!! Sorry it was late!!!!!

Answer:

7 students play an instrument.

Calculation:

35=100%

20%=[20×35]÷100

=7

Answer:

= 6.1072 × 10 to the 6 power

(scientific notation)

Step-by-step explanation:

Answer:

The number 6,107,200 in scientific notation is 6.1072 x [tex]10^{6}[/tex]

Step-by-step explanation: