write three expressions for 7a+21​

Answers

Answer 1
7(a)+21. , 7a+7.3. , 7(a+3). Hope this helps

Related Questions

Plz help I’m really confused

Answers

Answer: i think its 134

Step-by-step explanation:

The area of a sign in the shape of a square is 219 square inches. Which measurement is closest to the side length of
this sign in inches?
55 in.
B
15 in.
7 in.
D 110 in.

Answers

Answer:

A

Step-by-step explanation:

The area of a square is given as the side² thus the side length of the given square will be around 15 inches thus option (B) will be correct.

What is a square?

A square is a geometrical figure in which we have four sides each side must be equal and the angle between two adjacent sides must be 90 degrees.

Length of diagonal of square = √(2) × side

It is known that,

Area of square = Side²

Given, the area is 219 square inches.

Side² = 219

Side = √219 = 14.79 ≈ 15 in.

Hence "The area of a square is given as the side² thus the side length of the given square will be around 15 inches".

For more about a square,

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Solve the inequality.


9p ≥ −72

Answers

Answer:

yes

Step-by-step explanation:

because of math,

Step-by-step explanation:

[tex] p\geqslant - 8[/tex]

8. There were 512 people at the Talent Show,
Admission was $1.25 for adults and 50
for children. The receipts were $406.75.
How many of each attended?

Answers

Answer:

7.9 of each

Step-by-step explanation:

7996
Ben sat outside his school in Cambridge and made a note of the colour of
the first 100 cars that passed.
27 of the cars were red.
In Britain there are around 35 million cars on the road .
Use bens findings to give an estimate of how many cars on the road are red

Answers

Answer:

1,296,296 cars are red.

A manufacturer of pickup trucks is required to recall all the trucks manufactured in a given year for the repair of possible defects in the steering column and defects in the brake linings. Dealers have been notified that 3% of the trucks have defective steering, and that 5% of the trucks have defective brake linings. If 94% of the trucks have neither defect, what percentage of the trucks have both defects

Answers

Answer: 2%

Step-by-step explanation:

Let A be the event of having defective steering and B be the vent of having defective brake linings.

Given: P(A)  = 0.03  P(B) = 0.05

P(neither A nor B ) = 0.94

Using formula: P(either A nor B) = 1- P(neither A nor B )

= 1-0.94

i.e.  P(either A nor B) =0.06

Using formula:P(A and B) = P(A)+P(B)-P(either A or B)

P(A and B) =0.03+0.05-0.06

= 0.02

Hence, the percentage of the trucks have both defects = 2%

determine the value of x if the measure of the sixth exterior angle of a hexagon is given by -6(3/16x-14)+3​

Answers

Answer:

24°

Step-by-step explanation:

Assume the hexagon is regular.

Simplify: x^2-16/x-4 What does the given expression simplify to? What is the excluded value of x for the given expression?

Answers

Step-by-step explanation:

Difference of Squares: a² - b² = (a + b)(a - b)

(x² - 16) / (x - 4)

= [(x + 4)(x - 4)] / (x - 4)

= x + 4, where x =/= 4.

Answer:

1.    (x+4)

2.     4

Step-by-step explanation:

got right on edge

William fills 1/3 of a water bottle in 1/9 of a minute. How much time will it take him to fill the bottle

Answers

Answer:

3/9 = 1/3 of a minute or 20 seconds

Step-by-step explanation:

Answer:

1/3 of a minute

Step-by-step explanation:

1/3 x 3 = 1 bottle

1/9 x 3 = the time

1/9 x 3 = 3/9 or 1/3

Kiran says that -2<-5. Do you agree with Kiran? Explain or show your reasoning.

Answers

Answer:

No I do not agree. -2 is closer to 0 than -5

Step-by-step explanation:

-5 -----------> -2---------> 0

a chicken eats 0.114 kg of grains per day. how much grain does the chicken eat in 31 days

Answers

Answer:

3.534kg

Step-by-step explanation:

0.114 × 31 = 3.534 kg

hope this helps...

Iuhi(in 6uguyguygugjhguygiygi6ihb

Answers

Answer:

gt676t6

Step-by-step explanation:

Answer:

yuhijokfdvbr9878r9t

Step-by-step explanation:

jy

A regular number cube is rolled. What is the probability that an odd number will not be rolled?

1/2,1/3,5/6,2/3,

Answers

Answer:

1/2

Step-by-step explanation:

A regular die has 3 odd numbers (1, 3, and 5) and 3 even numbers (2, 4, and 6). The question asks for the probability that an odd number will not be rolled. This is the same as asking the probability of an even number being rolled. Since we have 6 numbers in our data set and 3 are even, we can deduce that 1/2 of them are even and the probability of an even number being rolled is 1/2.

HTH :)

Answer:

the answer is 5/6

Step-by-step explanation:

Paul is a newspaper boy who received a total piecework
paycheck of $265.72. He receives 73 cents for every
newspaper he delivers. How many newspapers did he
deliver?

Answers

Answer:

364

Step-by-step explanation:

265.72 ÷ 0.73 is 364

Check:

364 x 0.73

265.72

At the grocery store,
Ben purchased $7.50
worth of groceries and
a 44 cent stamp If he
paid with two $5 bills,
how much change
should he receive?

Answers

2.06...........................

Answer:

$2.06

Step-by-step explanation:

add 7.05 and 44 cents. he used 2 5 dollar bills, which is 10 dollars. 10-7.94 is 2.06.

A person riding in an elevator travels 180 feet in 30 seconds. What equation
represents this relationship? How many feet will the person travel in 10
seconds?
O A. y = 6x; 60 feet
O B. y = 6x; 6 feet
C. y = 82; 80 feet
O d. y= ; 17 feet
SUBMIT
PLEASE HELP!!!

Answers

Answer:

I believe its A

6x; 60 because 180/30 is 60

b - 1/8= 3 1/2


what’s b equal

Answers

in fraction
b= 29/8
decimal
b= 3.625
another’s fraction
b= 3 5/8

A toy train set includes a train station building which is a scale model of a real building. The area of
the front side of the toy building is 1 square foot. The real building's front side has an area of 400
square feet. If we view the real building as a dilation of the toy, what is the scale factor?
Your answer

Answers

Answer:

[tex]20[/tex]

Step-by-step explanation:

The area of the front side of the toy model is [tex]1\ \text{ft}^2[/tex]

The area of the real building's front side is [tex]400\ \text{ft}^2[/tex]

So

[tex]1\ \text{ft}^2[/tex] of the toy model is equivalent to [tex]400\ \text{ft}^2[/tex] of the real building.

Area scale factor is given by [tex]k^2[/tex], where [tex]k[/tex] is the scale factor of the sides.

So,

[tex]\dfrac{400}{1}=k^2\\\Rightarrow k=\sqrt{400}\\\Rightarrow k=20[/tex]

Hence, the scale factor is [tex]20[/tex].

The scale factor should be 20.

Important information:

The area of the front side of the toy building is 1 square foot. The real building's front side has an area of 400 square feet.

Calculation of the scale factor:

Since 1 square foot should be equal to 400 square feet

So,

[tex]400\div 1 = k^2[/tex]

[tex]K = \sqrt{400}[/tex]

k = 20

Learn more about the scale factor here: https://brainly.com/question/23908178

Leslie’s employer will match up to 3% of her salary in contributions to her 401(k). Her monthly salary is $3,200, and the company allows her to make contributions to a maximum of 10% of her salary. What is the maximum monthly deposit to Leslie’s 401(k), including her employer’s matching contribution?

Answers

Answer:

$416.00

Step-by-step explanation:

Leslie's 10% and her employer's 3% total 13% of her salary:

0.13 · $3200 = $416

The maximum monthly deposit to Leslie’s 401(k) account, including her employer’s matching contribution, is $416.

What is a matching contribution?

A matching contribution is a type of contribution that Leslie's employer decides to contribute to Leslie's 401(k) plan, which is an employer-sponsored retirement plan.

Data and Calculations:

Monthly salary = $3,200

Leslie's maximum contribution = 10% of salary

Employer's matching contribution = 3% of salary

Total contributions to the 401(k) plan = 13% of salary

= $416 ($3,200 x 13%)

Thus, the maximum monthly deposit to Leslie’s 401(k) account, including her employer’s matching contribution, is $416.

Learn more about matching contributions at https://brainly.com/question/16338999

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Need help asap
Will mark you brainlist

Answers

Josiah then Taylor and last is Layla

whati is a quotient of (-1) (2) (-3) (4) and (-5) divided by 6?

Answers

Answer:

You should get -20

Step-by-step explanation:

;)

10x-3Y=-150

how do you solve and graph?

Answers

add 3y to both sides

10x = -150 +3y

subtract -150 from both both sides

10x + 150 = 3y

then divide both sides by 3 (and going to switch the two sides cuz i prefer it that way)

y = (10/3)x + 50

so for graphing you take the y intercept

which is 50 and put a point there

slope (10/3) is rise/over run

so going down and to the left from your y intercept (cuz the slope is positive) count 10 then go over 3

put a point

do it again

then for the other way go up 10 and over 3

that’s graphing

i’ll graph it too but it’ll be sloppy so i figured i’d explain it too

A Traveler arrived at his final destination on February 11, 2021 at 2:30pm. The traveler departed 72 hours earlier traveling East from a time zone that is eight hours behind tha arrival time zone

On what day and at what time did the traveller depart?​

Answers

9514 1404 393

Answer:

  Feb 8, 2021, at 6:30 am

Step-by-step explanation:

The time of arrival, as seen from the point of departure, is 8 hours earlier than 2:30 pm, so is 14:30 -8:00 = 6:30 (am), on Feb 11. Three days (72 hours) before that time is ...

  6:30 am on Feb 8, 2021

△RST is shown below. XU = –2y + 15 and XW = 3y + 5.

PLEASE HELP ME

Answers

The answer for RST= 24

The required measure of the radius inscribed in the triangle RST is 11.

What is the triangle?

The triangle is a geometric shape that includes 3 sides and the sum of the interior angle should not be greater than 180°

Here,
The incenter of the triangle will be the center of the circle inscribed in the triangle. and radius will be the perpendicular distance from the incenter to the sides.
So,
XU = XW,
-2y + 15 = 3y +5
5y = 10
y = 2

Now,
Radius = XU
          = -2(2) + 15
          = 11

Thus, the required measure of the radius inscribed in the triangle RST is 11.

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The total number of seashells a divided by 10

Answers

Answer:

Please give more info

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

30% of 50. Find the percentage of the number.

Answers

Answer:

15

hope it's helpful ❤❤❤❤

THANK YOU.

Answer:

15

Step-by-step explanation:

30%x50÷100=15

Tripp decided to go on vacation to the beach. After driving 60% of the way, he decided to stop for lunch. If he stopped for lunch after 240 miles of driving, how many total miles will he have to drive? Explain and/or show equation.

Answers

Answer:

40=10% im rightthe total is 400

Step-by-step explanation:

Yeah it’s the same thing as he said

Solve for x.
3(-2x - 1) = 2(x + 5)

Answers

Answer:

x= −  8 /13  = −1  8 /5  = −1.625

Step-by-step explanation:

either one is the answer

<3 Enjoy,

    Dea

Answer:

x=-1.625  Decimal form  

x= -13/8    Fraction form

Step-by-step explanation:

3(-2x-1)=2(x+5)

Use distributive property to solve-

-6x-3=2x+10

Now add like terms

-6x-3=2x+10

    +3       +3

   -6x=2x+13  (get the x by itself)

  -2x    -2x

-8x=13     Divide

x= -1.625   Decimal form

x=-13/8   Fraction form

Se vendieron un total de 297 boletos para la obra de teatro escolar. Los boletos eran o de adulto o de estudiante. El número de boletos de estudiante vendidos fue dos veces el número de boletos de adulto vendidos . ¿Cuántos boletos de adulto

Answers

Answer: x boletos de adulto

2x boletos de estudiante

x+2x=288

3x=288

x=288/3

x=96

adulto =96

estudiante 2*96=192

96+192=288

Step-by-step explanation: 96 y 192

I need to find what's in those four boxes

Answers

Answer:

-500 +  200, -300

|0 - 200|, +200

Step-by-step explanation:

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