Mathematics College

Devonte is 7 years older than Hanna. In 7 years the sum of their ages will be 83. How old is Devonte now?

Answers

Answer 1

Answer:

Hannah = 34 and 1/2

Devonte = 41 and 1/2

Step-by-step explanation:

Hanna = x

Devonte = x+7

x+x+7=83-7

2x+7=76

2x=76-7

2x=69

x=34.5

Hannah = x = 34.5

Devonte = x+7 = 41.5

Related Questions

Find the total surface area of this cone.
Leave your answer in terms of pi
12cm
55cm

Answers

Answer:

Step-by-step explanation:

write your answer in improper fraction 282 should be written in front of 6 upon 7 this is your answer I hope it helps

please someone answer this

Answers

Answer:

option 2.

the others are simultaneous equations in two unknowns but 7x-2y have the same value and the value can't be two different things at once

What is the slope of the line below?

Answers

up two over one so the slope is 2
The slope is 2 :) dndjes
Dmfirkdnd

Sam's height is 15 centimeters less than 2 times Martha's height. If Sam is 185 centimeters tall, and Martha's height is x, the relationship between the heights can be represented by the equation 2x − 15 = 185. What is Martha's height?
A.
90
B.
95
C.
100
D.
105

Answers

Answer:

C

Step-by-step explanation:

S= (2M-15)=185

2m=185+15= 200

m=200÷2= 100cm-C

Please help I kind of understand but not fully

Answers

Answer:

Graph #1 - y=-20x+40

Graph #2 - y=5x+10

Step-by-step explanation: The first thing that you do is pull two points from each of the graphs and find the slope. To find the slope you use

M = y2-y1/x2-x1

FROM GRAPH #1:

(3,40) (2,80)

(x1,y1)    (x2,y2)

   80-40/2-3

      20/-1

    M = -20

FROM GRAPH #2:

(1,10) (3,20)

(x1,y1)  (x2,y2)

  20-10/3-1

     10/2

    M = 5

2. Now once you find the slope you will use the equation of a line formula to form an equation.

y=mx+b

The (mx) is your slope, the (b) is the y-intercept. (any value on the y-axis)

3. Since we now know the equation of a line and the slope we will substitute the variables.

Graph #1:

y=mx+b

y=-20x+40

Graph #2:

y=mx+b

y=5x+10

HOPE THIS HELPS :)


The population of a country has been increasing for several decades. In 1990, the population was about 263 million people In 2014, the population was about 307 million people Determine the percent in + The country's population increased by about % during this time period


​

Answers

Answer:

The country's population increased by about 16.73% during this time period.

Step-by-step explanation:

Percent increase:

The percent increase is given by the change multiplied by 100 and divided by the initial value.

In 1990, the population was about 263 million people In 2014, the population was about 307 million people.

Change: 307 - 263 = 44

Initial population: 263

Percentage increase:

44*100/263 = 16.73%

The country's population increased by about 16.73% during this time period.

ILL GIVE BRANILESST PLZ
Select the correct answer from each drop-down menu.
A system of linear equations is given by the tables.
<
у
х
у
-5
10
-8
-11
-1
2
-2
-5
ol
1
-2
11
-22
7
4
X
The first equation of this system is y=
v
The second equation of this system is y= x -
The solution to the system is (

Answers

Answer:

1: -2

2: -3

(-2,-3)

Step-by-step explanation:

Suppose the buildings on Main Street are renumbered as if they are on a number line so that the location of the fire station represents 0. How do we describe two numbers with the same distance from 0?

Answers

☁️ Answer ☁️

Yh, im not helping you.

log 3x^2y fully expanded

Answers

Answer:

6xy

Step-by-step explanation:

Brainliest for correct answer

Answers

Answer:

one third of the volume

Step-by-step explanation:


1. It takes 45 minutes for two people to clean six identical rooms. How
long would it take five people to clean 20 of the same rooms at the same
rate?​

Answers

Answer:

To clean 20 identical rooms 5 people will take 1 hour .

Hope It Helps You.


[tex]12 {?}^{2} [/tex]
​

Answers

12^2 is 144, 12 x 12. Hope this helps?

what is a solution to the inequality y>3x-9

Answers

Answer:

Many answers including (0,0)

Step-by-step explanation:

Well there is many solutions since it is an inequality, in fact there are infinite possible solutions.

One possible solution is (0,0)

Here's a graph that shows some of the possible solutions:

Simplify: (3^5)^2 / 3^-2


A) 3^10

B) 3^9

C) 3^12

D) 3^8

Answers

Answer:

3^12

Step-by-step explanation:

(3^5)^2 / 3 − ^2 = 243^2/3−^2 = 59049 / 3−^2 = 59049/ 1 / 9 = 531441

= 3*3*3*3*3*3*3*3*3*3*3*3 = 3^12

For the number line shown, which statement is not true?

Answers

Answer:

The answer is The First One, IaI > b

Step-by-step explanation:

Rewrite the sum of 12 + 27 using the GCF and the distributive property I​

Answers

12345678991112131415161718

Find the opposite of: - 4x2 - 6x + 3

Answers

Wdym by opposite ??????

Helpppppp plssssssss

Answers

Answer:

y^6

Step-by-step explanation:

Anyone know this?? Thanks

Answers

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

The figure is a rhombus when the sides are the same length.

  21 -x = 2x +9

  12 = 3x . . . . . . . . add x-9 to both sides

  4 = x . . . . . . . . . . divide by 3

2. 10+ 2 + 3 x 5 - 3​

Answers

Your answer would be 24


A gumball machine consists of a base and a glass sphere. The gumballs are stored in the glass sphere. If each
gumball has a diameter of 1.5 inches, about how many gumballs can be stored in a gumball machine whose glass
sphere measures 10 inches in diameter?

Answers

Answer:

6 gumballs can be stored in the gumball machine.

Step-by-step explanation:

Since a gumball machine consists of a base and a glass sphere, and the gumballs are stored in the glass sphere, if each gumball has a diameter of 1.5 inches, to determine how many gumballs can be stored in a gumball machine whose glass sphere measures 10 inches in diameter, the following calculation must be made:

10 / 1.5 = X

6.666666 = X

Thus, 6 gumballs can be stored in the gumball machine.

Each day last week, Ms. Wilson walked 3/4 mile. What is the total distance, in miles, that Ms. Wilson walked in four days.

Answers

5.25 oooooooooooooooo

Answer:

3

Step-by-step explanation:

If I’m wrong sorry

But can I get brainlist

Please guys help me please

Answers

Answer - B
Explanations triangle reflected over y-axis

number of side number of triangle sum of the measure of the angles ​

Answers

Answer:

Quadrilateral

#sides = 4

#∆ = 4-2 =2

sum= n(4-2)180° = 360°

pentagon

#sides =5

#∆ = 5-2 = 3

sum = n = (5-2)180° = 540°

Octagon

#sides = 8

#∆= 8-2 = 6

sum = n = (8 - 2)180° = 1080°

Nonagon

#sides =9

#∆ =9-2 = 7

sum = n=(9-2)180° = 1260°

Heptagon

#sides= 7

#∆= 7-2 = 5

sum = n= (7-2)180° = 900°

will mark brainlist!! help please ​

Answers

Answer:

It is the 3rd one 9/5y+9.

Someone please answer this ​

Answers

Answer:

Answer what?

Step-by-step explanation:

Haruto gave 42 of his paycheck to his mother. If his paycheck was 855 how much money did he give to his mother

Answers

Answer:

813

Step-by-step explanation:

I need this for math thanks

Answers

I’ll answer, but wait, do I send a picture of my work? or not? It says I have to make a table of values, so

i don’t know i’m sorry man

what are 2 challenges that Will Smith faced

Answers

Answer:

Will Smiths wife cheated on him!

Step-by-step explanation:

A game comes with a deck of cards with each card
showing one of the numbers 2, 3, 4, 5, 6, or 8. Each
card occurs one time in red, one time in purple, and
one time in blue. Given that a blue card is drawn, what
is the probability the card is a 4?
Select one:
4/9

1/18

1/3

1/6

Answers

Aasf;kbdaihhakufnsdo;fgaoudghosaugbolfbodbfaifjla;db;ihjlksabd;ohipn

Step-by-step explanation:

Answer:

k

Step-by-step explanation:

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