what is the mathematical sentence of "A number increasd by 7 is 15?

A n - 7 = 15

B n + 7 = 15

C 7n = 15

D. n/7 = 5​

I AGREE WITH THE COMMENT ABOVE, THAT'S THE RIGHT ANSWER, I'VE GOT 100% OUT OF 100% JUST BCS I INSERT THAT ANSWER, VERY HELPFUL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

C

Step-by-step explanation:

The sum of the interior angles of a square = 360° ( 4 right angles )

The sum of the interior angles of a triangle = 180°

Then sum of interior angles of the figure is

sum = 180° + 180° + 360° = 720° → C

Answer:

D)

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

3^2+6= 9+6= 15 hope it helped

Answer:

A- no

B- no

C-yes

D- yes

Step-by-step explanation:Anything that is inside the red is a solution. You can also plug in the points into the equation and see if its right. Thats what I did for a.

Answer:Abby bought 3 sweat shirts and 7 t shirt

Step-by-step explanation:

Step 1

Let sweat shirt be represented as s

and t shirts be represented as t

such that the total  umber of items bought which equals 10 can be written as

s+ t= 10---- equation 1

and total price of the gear with each item costing  $25 on sweatshirt $11 on  t-shirts be expressed as

25 s+ 11 t = 152---- equation 2

Step 2

s+ t= 10-----equation 1

25s+ 11t= 152----equation 2

By elimination method , multiply equation 1 by 10  and subtract equation 2 from it

25 s+ 25t= 250----- equation 3

-25s + 11t= 152-----equation 2

14t=98

t=98/14= 7

To find s, using equation 1

s+t=10

s= 10-7= 3

Abby bought 3 sweat shirts and 7 t shirt

Answer:

-9/4

Step-by-step explanation:

-8-1 = -9

2-(-2) = 4

Answer

x=-4

y=9

Step-by-step explanation:

Answer:

second one. I guess

Step-by-step explanation:

cause I calculated It ..and I think it's the answer

Answer:I hope my answer will helps you

Answer:

1. $165

Step-by-step explanation:

Zahra will expect to earn 14 *t +25 in a day on which she waits on "t" tables.

A linear function in mathematics is one that has either one or two variables and no exponents. It is a function with a straight line as its graph.

Given, Zahra is a waitress at a restaurant. Each day she works, Zahra will make a guaranteed wage of $25,

Let "t" be the tables Zahra is waitressing.

Since, she will get about $14 in tips for each table she waits on.

Total additional tip = t * 14

guaranteed wage = 25$

So, Total Zahra will earn for waitressing on "t" tables = 14 *t +25

For t = 10 tables

Zahra will earn for waitressing on 10 tables = 14 * 10 +25

Zahra will earn for waitressing on 10 tables = 165

Therefore, Zahra will expect to earn $165 in a day on which she waits on 10 tables.

Learn more about Linear Function here:

brainly.com/question/20286983

#SPJ2

Answer:

2/3

[tex] \frac{3 \times 6}{9 \times 3} [/tex]

[tex] = \frac{18}{27} [/tex]

[tex] \frac{18 \div 9}{27 \div 9} [/tex]

[tex] = \frac{2}{3} [/tex]

Answer:

250 - 20 < 80 + 15x

Step-by-step explanation:

Given that

Beth has 250 books and 20 books sold each week

While on the other hand, Martin has 80 books and sell 15 books each week

Let us assume each week be x

Now the equations are  

Beth         250 - 20x            

Martin       80 + 15 x

Now the inequality would be

250 - 20 < 80 + 15x

Answer:

The y-coordinate of the solution is thus -5.

Step-by-step explanation:

Rewrite 5x-y=25 4x+3y=1

in a column:

5x-y=25

4x+3y=1

If we want to find the y-coordinate of the solution, we need to eliminate x.  Solving the second equation for 4x yieds 4x = 1 - 3y, or

x = (1 - 3y)/4.

If this is inserted into 5x - y = 12, we get:

5(1 - 3y)/4 - y = 25, or (multiplying all terms by 4 to eliminate fractions):

5 - 15y - 4y = 100, or

-19y = 95, which yields y = -5

The y-coordinate of the solution is thus -5.

Answer:

B. 55°

Step-by-step explanation:

Answer:

k

Step-by-step explanation:

Answer: Yeah, I'll help you!!! :)

Answer:

8 ft. tall

Step-by-step explanation:

the measurement of the height of the 10 and then judging by the height of the middle half is 8 ft.

Answer:

[tex]h=\frac{15.625}{pi}[/tex]

h ~ 4.974

Step-by-step explanation:

The formula for the volume of a cylinder is;

[tex](pi)(r^{2})(h)=V[/tex]

Where [tex](pi)[/tex] represents the value, [tex]3.1415...[/tex]

[tex](r)[/tex] represents the radius of the given cylinder. In other words, if one were to take a base (the flat side in the case of the cylinder) of the figure. The distance from the center to a point on the outside of the circle is the radius.

[tex](h)[/tex] represents the height of the object. In other words the distance between the two bases of the cylinder.

[tex]V[/tex] represents the volume, in other words, the space that the object takes up.

In this problem, one is given the diameter of the cylinder and the volume. One is asked to find the area.

The diameter of a circle is the distance between two opposite sides of the circle. The diameter will always pass through the center of the circle. To find the radius when given the diameter, one will divide by 2.

To solve this problem, one will substitute in the given information and solve for the height using inverse operations.

[tex](pi)(r^{2})(h)=V\\\\(pi)((\frac{8}{2})^{2})(h)=250\\\\(pi)(16)(h)=250\\\\(pi)(h)=15.625\\\\(h) = \frac{15.625}{pi}\\\\h- approx. 4.974[/tex]

Answer:

x = 7, − 5

Step-by-step explanation:

Answer:

Step-by-step explanation:

say that mystery number is x

5*x-27=83

5*x=83+27

5*x=110

x=22

Answer:

22

Step-by-step explanation:

5x-27=83

           +27

5x=110

x=110/5

x=22

Answer: The answer is B

Answer:

1/5

rise over run

1- the inches

over 5- the days

Answer:

8x+14

Step-by-step explanation:

Answer:

600

Step-by-step explanation:

set x as the number

x0.10 = 60

x = 60/0.10

x = 600

Answer:

For me i think its 16.67 well im not fully sure

Step-by-step explanation:

SO we have to figure out what gives us 10 and that will be represented as "x"

[tex]\frac{60}{100}[/tex]  × x = 10

Multiplying both sides by 100 and dividing both sides by 60,

we have x = 10 × [tex]\frac{100}{60}[/tex]  so, x = 16.67

(that's what i believe but i don't know)

Answer:

31.42

Step-by-step explanation:

equation for solving is C= π d

circumference is  π x diameter

so therefore the new equation is π x 10

3.14 (π) x 10 (d) = 31.42

Answer:

10 days

Step-by-step explanation:

2/.2=10

Answer:

D:10 days

Step-by-step explanation

1/5 ÷ 10 = 0.02 in decimal form.

hope that helps

Answer:

the answer is 0.89

Step-by-step:

the first boxes under 62 will be 56

the second box under 56 will be 63

the 3rd boxes will be will be 63

the very top boxes will be 0.89

Answer:

AB = 14

DE =7

Step-by-step explanation:

Remark

AB

Opposite sides of a parallelogram are equal.

AB = CD

AB = 14

DE

According to the diagram AE = 19

AD = 26 which is the same size as BC

DE = 26 - 19 = 7

DE = 7

Answer:

y = -x -1

Step-by-step explanation:

x1= 0, y1= -1

[tex]slope = \frac{x - x1}{y - y1} = \frac{x - 0}{y - ( - 1)} = \frac{x}{y + 1} [/tex]

-1 = x/(y+1)

-1 (y+1) = x

y+1 = -x

y= -x -1