Randy is thinking of a number. When he adds 7 to the number, multiplies the sum by 3, then subtracts 2, the result is 13. What is the original number?
A. 6
B. -2
C. 2
D. -6

Answers

Answer 1

Answer:

B. -2

Step-by-step explanation:

let the number be x

=7+x

=3(7+x)

=3(7+x)-2

13=3(7+x)-2

solving for  x we have

13=21+3x-2

21+3x-2-13=0

collect like terms we have

21-2-13+3x=0

6+3x=0

6=-3x

x=6/-3

x=-2

The answer is B

B. -2


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is so eassy 2 puls 2

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Answer:

4

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

A rectangular object is 3.0 cm long, 2.0 cm wide, and 4.0 cm high. Calculate the VOLUME of the object?

Answers

Answer:

V = length x width x height

V = 3 x 2 x 4

V = 24 cm^3

Choose the symbol that goes in the blank to make the statement true.
163_136

Answers

Answer: 163>136

Step-by-step explanation:

during a snow storm the temp drops from o degrees to -10 degrees in 2 hours. on average, bye how many degrees is the temperature changing per hour.

Answers

Answer:

five degrees:)

Step-by-step explanation:

2 hours= -10

1 hour= half of ten

so you could say -5 or that it drops by five degrees every hour.

hope this helps!

Jody and Mark are using the spinners shown for a probability experiment. They spin the spinner on the left. If they spin a 2 and 3, then they spin the spinner on the right.

Answers

Answer:

it’s b

Step-by-step explanation:

Distance between -1.75 and 1.5 on a number line

Answers

Answer:

3.25

Step-by-step explanation:

I am glad to help you

Can any kind soul help me please​

Answers

Answer:

v=31

Step-by-step explanation:

Average speed is total distance/total time.

We can rearrange this equation to find total distance:

Distance = time x speed

Our given time is 14 hours and our average speed is 13km/h, therefore the distance travelled 14x13=182m.

On a speed-time graph, the distance is found by finding area under the line on the graph. So to find v, we can find the area for the other sections first and then use the remainder to find v.

The total distances for the other 3 sections are: 4x6 + 6x12 + 4x12 = 24+72+24=120

182-144 = 38

This means that the area of the triangle with height v-12 has an area of 38.

Area of a triangle = 1/2bh

38=1/2(4)h

38=2h

h=19

The distance between v and 12 is 19 so the full value of v is 19+12=31

v = 31

Hope this helped!

!!HELP 20 PTS!! Pls I need help

Answers

Answer:

6c+d+17

Step-by-step explanation:

Please identify the common angles and sides or if there are non. Explain all work please!

Answers

Answers:

Common angles: ΔBGC and ΔGDC

Common sides: ΔGE and ΔAG

A common angle is a triangle that exists in two or both of the triangles.

Here, the common angles should be ΔBGC and ΔGDC.

These two angles are triangles, and they consist in both triangles.

A common side is when two angles have one vertex in the same area.

Here, we see that the common sides are ΔGE, because they intersect.

Another common side we see here is ΔAG, because they also intersect.

Hope this answer helps you!

Interce
Determine the intercepts of the line.
Y=-9x-14

Answers

Answer:

y= -14        x= -1.556

Step-by-step explanation:

graphing calculator is good  

Anthony, Josh, and Dominic worked a combined 7 hours today. Dominic worked twice as many hours as Anthony did with an extra hour. Dominic worked 5 more hours than Josh did. How many hours did each of them work?

Answers

dominic worked 5 hours
anthony worked 2 hours
josh worked 0 hours

The number of hours worked by Anthony , Josh and Dominic is 2 hours , 0 hours and 5 hours respectively

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the number of hours worked by Anthony = A

Let the number of hours worked by Josh = J

Let the number of hours worked by Dominic = D

Total number of hours worked by Anthony , Josh and Dominic = 7 hours

So , A + J + D = 7   be equation (1)

Now ,

Dominic worked twice as many hours as Anthony did with an extra hour

So , D = 2A + 1   be equation (2)

And ,

Dominic worked 5 more hours than Josh did

So , D = 5 + J   be equation (3)

Simplifying be equation (2) and be equation (3) , we get

2A + 1 = 5 + J

Subtracting 5 on both sides , we get

J = 2A - 4   be equation (4)

Now ,

Substituting the values of equation (2) , equation (3) and equation (4) in equation (1) , we get

A + 2A - 4 + 2A + 1 = 7

5A - 3 = 7

Adding 3 on both sides , we get

5A = 10

Divide by 5 on both sides , we get

A = 2

Therefore , the number of hours Anthony worked is 2 hours

Now , Substituting the value of A in equation (4) , we get

J = 4 - 4

J = 0 hours

Therefore , the number of hours Josh worked is 0 hours

Now , Substituting the value of A in equation (2) , we get

D = 4 + 1

D = 5 hours

Therefore , the number of hours Dominic worked is 5 hours

Hence , The number of hours worked by Anthony , Josh and Dominic is 2 hours , 0 hours and 5 hours respectively

To learn more about equations click :

https://brainly.com/question/10413253

#SPJ2

Can someone help me
Please and thank you!!

Answers

Answer:

im pretty sure the answer is 150

Step-by-step explanation:

hope this helps <3

Answer:

150 degrees.

Step-by-step explanation:

The total number of degrees is 180. 180-30=150 degrees.

Mia makes 12% commission on all her sales This month she sold $9,000 worth of merchandise . What was her commission?

Answers

I think that all you need to do is multiply the 12% commission by the $9,000 worth of merchandise sold. 12% would equal 0.12. So 0.12 x 9,000 = $1,080.

James, Priya, and Siobhan work in a grocery store. James makes $8.00 per hour. Priya makes 20% more than James, and Siobhan makes 5% less than Priya. How much does Siobhan make per hour?

PLEASEE HELP

Answers

I think it’s approximately $9.20 per hour

A flat screen television measures diagonally 40 inches and 24 inches in length. What is the width of the television?

Answers

Answer:

The width of the television is 32 inches

Step-by-step explanation:

The given parameters are;

The diagonal length of the flat screen television = 40 inches

The length of the television screen = 24 inches

The width of the flat screen television is given by Pythagoras theorem as follows;

Diagonal² = Length² + Width²

Therefore;

Width² = Diagonal² - Length² =

Width² =  40² - 24² = 1024

∴ The width = √1024 = 32

The width = 32 inches

The width of the television = 32 inches.

PLZ HELP ME! I WILL GIVE BRAINLIEST!!! PLZ ONLY ANSWER IF YOU KNOW!!!

Answers

Answer:

14  28   28 22  23 19 12

Step-by-step explanation:

Answer:

7. B

8. C

9. E

10. A

11. D

Step-by-step explanation:

7/8 divided by 2/3 in simplest form

Answers

Answer:

21/16

Step-by-step explanation:

I need some help with geometry.

Answers

Answer:

x = 17, angle 1 and 2 = 45

Step-by-step explanation:

i think x=17 but i’m not sure

What is the slope, x-intercept, and y-intercept of -8x + 2y = 16

With a step by step

Answers

Answer:

Slope 4

X-intercept -2

Y-intercept 8

Step-by-step explanation:

2/3x = 24 what does x equal?

Answers

Answer:

x=36

Step-by-step explanation:

X equals to 36
To Step per step look at the picture

Write in simplest form. 12/15 Divided by 4/9

Answers

Answer:

9/5

Step-by-step explanation:

12/15 / 4/9

12/15 * 9/4

108/60

54/30

27/15

9/5

Enter the unknown value that makes this statement true:
100% of ____ is 50.

Answers

Answer:

200

Step-by-step explanation:

Answer:

50

Step-by-step explanation:

Because 100% is all, so all of 50 is 50.

Find the two integers, m and n,

make the equation (2x^ny2)m = 4x6y4 true.

Answers

Answer:

m = 2 and n = 3

Step-by-step explanation:

We want to find the value of the integers m and n that will make the given expression true

(2x^ny^2)^m = 4x^6y^4

We can rewrite the left hand side of the equation as follows;

(2x^3y^2)^2

we can proceed to use inspection to ind the value of m and n

Through inspection since the left hand side of the equation now looks like the right hand side;

Then;

m= 2 and n = 3

Part 2 - What is the equation of the line?

Answers

Answer:

y = 3x + 3

Step-by-step explanation:

Hope This Helps!

Plz Mark Brainliets!

A group of 7 people spent $33.50 on movie tickets. They paid $6.50 for each adult ticket and $3.50 for each child's ticket. We would like to determine how many of each type of ticket was purchased. A. Specifically define variables for this system B. Write a system of equations that reflects the relationships described in this situation

Answers

Answer:

Number of Adult tickets = 3

Number of student tickets = 4

Step-by-step explanation:

Let the number of Adults tickets = x

The number of students tickets = y

A. Specifically define variables for this system

x + y = 7...... Equation 1

They paid $6.50 for each adult ticket and $3.50 for each child's ticket.

$6.50 × x + $3.50 × y = $33.50

6.50x + 3.50y = 33.50.......Equation 2

B. Write a system of equations that reflects the relationships described in this situation

x + y = 7...... Equation 1

x = 7 - y

6.50x + 3.50y = 33.50.......Equation 2

6.50(7 - y) + 3.50y = 33.50

45.5 - 6.5y + 3.5y = 33.5

45.5 - 33.5 = 6.5y -3.5y

12 = 3y

y = 12/3

y = 4 tickets

x + y = 7...... Equation 1

x + 4 = 7

x = 7- 4

x = 3 tickets

Anne plans to increase the prices of all the items in her store by 5%. To the nearest cent, how much will
an artist save if the artist buys a canvas and a frame that each measure 24 by 36 inches before the
price increase goes into effect

Answers

Answer:

Step-by-step explanation:

We don't know the first price?

Find the tables with unit rates greater than the unit rate in the graph. Then arrange these tables in order from least to greatest unit rate,
70
65
60
55
50
45
40
35
30
25
20
15
10
5
3 4 5 6 7 8 9 10 11 12 13 14
X
y
y
X
y
х
x
y
y
7 13
5
Х y
9 17
18 34
10 19
13 25
11 21
22 42
12 23
24 46
14 26
10 18
20 38
26 50

Answers

Answer:

i don't under stand the question

Step-by-step explanation:

Answer:

i think it is x=11,22 y= 21,42, then x=10,20 y=19,28, then x= 9,18 y=17,34,then x=7,14 y=13,26, then x=5,10 y=9,18

Step-by-step explanation:

A probability experiment consists of rolling a fair 12 sided die. Find the probability of the event below rolling an 11

Answers

Answer:

the chance is 1/12 or 8.333...%

hope this helps

Step-by-step explanation:

Which type of transformation is the equivalent of two reflections across intersecting lines?

Answers

Answer:

Rotation

Step-by-step explanation:

Question
Identify the correct graph and solution for the inequality.
10 a <25
(Look at pic)

Answers

i think it is C
explanation:

Answer:

First option

Step-by-step explanation:

First, Solve the inequality:

Divide each side by 10 to cancel out the 10 next to a. It should now look like this: a < 2.5

Find the inequality that matches the solution:

The first option (which literally writes the simplified version of the inequality) is correct, because it matches our simplified inequality above.  
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