1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lana [24]
3 years ago
10

Three years ago, sharon was (8+b) years old and nora was (2b-1) years old. Lupe will be 3b years old in 2 years. Write an expres

sion in simplest form for the present day sum of the three girls' ages?
Mathematics
1 answer:
Usimov [2.4K]3 years ago
5 0

Answer:

Three years ago

S = 8 + b

N = 2b - 1

In two years

L = 3b

Add 3 to the first 2 expressions and minus 2 from the second

11 + b + 2b + 2 + 3b - 2

11 + 2 - 2 + b + 2b + 3b

11 + 6b

You might be interested in
To find the standard equation for a circle centered at the origin, we use the distance formula, since the radius measures? A. Th
masya89 [10]

Answer:

  A. The distance from any point in the circle to the origin

Step-by-step explanation:

The distance formula tells you that the distance (d) is related to the coordinates of two points (x1, y1) and (x2, y2) by ...

  d² = (x2 -x1)² +(y2 -y1)²

For points (x, y) on the circle and (0, 0) at the origin, this becomes ...

  d² = (x -0)² +(y -0)²

If we want the distance to the point (x, y) to be equal to the radius of the circle, this becomes ...

  x² +y² = r² . . . . . . the standard equation of a circle centered at the origin

3 0
3 years ago
PLEASE HELP ME WITH ALL ITS DUE TODAY!!
Vadim26 [7]

Answer:

Line 1 Slope: - 4/3

Line 2 Slope: 3/4

Line 3 Slope: 3/4

---------------------------------------------------------------------------------------------------------------

Line 1 and Line 2: Perpendicular

Line 1 and Line 3: Perpendicular

Line 2 and Line 3: Parallel

Step-by-step explanation:

Line 1: Passes through (6, -4) and (0, 4).

We first find the slope by using this equation (y2 - y1) / (x2 - x1) -    

(4 - (-4)) / (0 - 6)    

(4 + 4) / (-6)  

8 / -6

-4 / 3  

Slope = - 4/3

___________________________________________________________

Line 2: Passes through (-4, -2) and (8, 7).

We first find the slope by using this equation (y2 - y1) / (x2 - x1) -    

(7 - (-2)) / (8 - (-4))    

(7 + 2) / (12)  

9 / 12

3 / 4  

Slope = 3/4

___________________________________________________________

Line 3: Passes through (-4, -5) and (4, 1).

We first find the slope by using this equation (y2 - y1) / (x2 - x1) -    

(1 - (-5)) / (4 - (-4))    

(1 + 5) / (4 + 4)  

6 / 8

3 / 4  

Slope = 3/4

___________________________________________________________

Line 1 and Line 2: Perpendicular

Line 1 and Line 3: Perpendicular

Line 2 and Line 3: Parallel

5 0
2 years ago
Find the base of an isosceles triangle whose area is 60 cm2 and the length of one of its equal sides is 13 cm​
Karolina [17]

Answer:

b≈10cm

or

24cm

Step-by-step explanation:

5 0
3 years ago
Solve the following for the variable:<br> 5x – 3 = 2
ra1l [238]
I believe it’s 1 / X= 1
3 0
3 years ago
Read 2 more answers
Your fixed expenses are 1,151.65 month. you saved 4 months worth in an emergency fund.You invest 100% of the emergency fund in a
andrew-mc [135]
I = Prt
I = (4*1151.65)*0.033*(60/360)
I = 25.34

The interest after 60 days is 25.34.
6 0
3 years ago
Other questions:
  • If 3,669 people lived in Marlboro,new York and Brooklyn new York had 681 as many people how many more people live in Brooklyn th
    5·1 answer
  • Y=-1/3x-3 how to graph
    5·2 answers
  • If a triangle is a right triangle then the other two angles must be acute true or false ?
    15·1 answer
  • Find sin0, cos0, tan0
    12·2 answers
  • 2.8 in expanded form
    14·2 answers
  • Need help, this is due very soon
    11·1 answer
  • Help me with math pls ❤️ it will mean a lot to me.
    9·2 answers
  • Work out 25% of £18
    13·2 answers
  • The length of a rectangle measures 5/8 of a foot. The width of the rectangle measures 2 1/2 feet. What is the area of the rectan
    14·2 answers
  • Evaluate the function. f(3) = -36 Find f(-2) Answer: 3 2​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!