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
hoa [83]
3 years ago
5

Sally is 1 year older than 3 times the age of joe.Chirs is 5 years younger than 6 times the age of joe.If sally and Chris are th

e same age,how old is joe
Mathematics
2 answers:
Sav [38]3 years ago
7 0
S = sally C = Chris J = Joe
sally is one year older than 3 times the age of joe, so
s = 3j + 1
chris is 5 years younger than 6 times the age of jo, so
c = 6j - 5
sally and chris are the same age so
s = c so
3j + 1 = 6j - 5
-3j -3j
1 = 3j - 5
+5 +5
6 = 3j or
3j = 6
3j/3 = 6/3
j = 2

check
s = c
3(2) +1 = 6(2) - 5
6 + 1 = 12 - 5
7 = 7 correct✅
guajiro [1.7K]3 years ago
5 0

Answer: Joe is 2 years old

Step-by-step explanation:

Let x represent the age of Joe.

Sally is 1 year older than 3 times the age of Joe. It means that the age of Sally is

3x + 1

Chirs is 5 years younger than 6 times the age of Joe. It means that the age of Chris is

6x - 5

If sally and Chris are the same age, it means that

6x - 5 = 3x + 1

6x - 3x = 1 + 5

3x = 6

x = 6/3

x = 2 years

You might be interested in
Determine the intercepts of the line.
gayaneshka [121]

Answer:

x-intercept: (18/5,0)

y-intercept: (0,-2)

Step-by-step explanation:

btw .. you put the equation twice it's supposed to be " -5x+9y=-18 "

5 0
3 years ago
1. A translation of function f is f1(x) = b(x – h). It is equivalent to
svetoff [14.1K]
4 will be the correct answer to your question
7 0
3 years ago
The perimeter of a playing field for a certain sport is 214 ft. The field is a rectangle, and the length is 41 ft longer than th
malfutka [58]

Step-by-step explanation:

Perimeter of a rectangle = 2(L+W)

L is the length of the rectangle:

W is the width of the rectangle.

Given

Perimeter = 214feet

If the length is 41 ft longer than the width, then L = 41+W

Substitute L = 41+W into the formula:

P = 2(L+W)

214 = 2(41+W+W)

214 = 2(41+2W)

214 = 82+4W

4W = 214-82

4W = 132

W = 132/4

W = 33 feet

Since L = 41+W

L = 41+33

L = 74 feet

Hence the dimension of the field is 74ft by 33ft

<em>The width of the playing field is 33feet</em>

8 0
3 years ago
Which trinomials are perfect square trinomials?
lora16 [44]
Perfect square is
a²+2ab+b²

so just take the square root of the end ones and add then double to get middle term


A.
m+10=10m, doubled is 20m
nope

B.
m+5=5m, doubled is 10m, yep

C.
m+2√15=fancy thing that won't get to 36m

D.
m+12=12m, doubled is 24m, yep


B and D
3 0
3 years ago
Read 2 more answers
Find the slope of the given points (3, 4) and (7, -4).
ziro4ka [17]

Answer:

-2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Gina Chuez has considered starting her own custom greeting card business. With an initial start up cost of $1500, she figures it
    14·1 answer
  • Someone, please help me
    6·1 answer
  • How much would the combined production of pineapples increase for the two islands due to trade? How much would the combined prod
    14·1 answer
  • What is 60% of 125? Enter your answer in the box.
    7·1 answer
  • Describe the transformations needed to translate the graph y=1/x to the graph of y=1/x+3 -4
    5·2 answers
  • 16. Geography If a ship sailed due south from Iceland to Antarctica, it would sail
    11·1 answer
  • A cylinder has a radius of 5x + 4 and a height of 2x + 5. Which polynomial in standard form best describes the total volume of t
    10·1 answer
  • What is the vertex of f(x) = 3(x+2)^2 -1
    15·1 answer
  • ⣼⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢻⣿⣿⢻⣿⣿⣿⣿⢻⣿⣿⢻⣿⣿⠀⠀⠀⠀
    14·2 answers
  • HELP DUE TOMORROW GUYS
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!