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
umka2103 [35]
3 years ago
12

A park has a grinkgo tree a dogwood tree and 2 blue spruce trees the blue spruce trees are 8 years old the grinkgo tree is 2 yea

rs less than three times the age of the dogwood tree the grinkgo tree is also half the sum of the ages of the dogwood tree and both if the blue spruce trees write and solve an equation to find the ages of the grinkgo and the dogwood trees.
Mathematics
1 answer:
enot [183]3 years ago
7 0

Answer:

The age of the grinkgo tree is 10 years old and the age of the dogwood tree is 4 years old

Step-by-step explanation:

Let

x -----> the age of the grinkgo tree

y -----> the age of the dogwood tree

z -----> the age of the blue spruce tree

we know that

x=3y-2 ------> equation A

z=8 ----> equation B

x=\frac{1}{2}(y+2z)

substitute the value of z

x=\frac{1}{2}(y+2(8))

x=\frac{1}{2}(y+16) -----> equation C

equate equation A and equation C and solve for y

3y-2=\frac{1}{2}(y+16)

6y-4=(y+16)

6y-y=16+4

5y=20

y=4

Find the value of x (equation A or equation C)

x=3(4)-2=10

therefore

The age of the grinkgo tree is 10 years old and the age of the dogwood tree is 4 years old

You might be interested in
What is the value of 4 to the power of 6 over 4 to the power of 8?
dem82 [27]
I say 1 over 16 but could be 64
3 0
3 years ago
Read 2 more answers
3 to the third power + 2 Open bracket 64 - (3 x7) close bracket
Serjik [45]

3 to the third power = 9

2 Open Bracket 64 - (3 x 7) close bracket = 86

9 + 86 = 95

7 0
3 years ago
Does anyone know how to do this?
tatuchka [14]

Answer:

201.0619298297

Step-by-step explanation:

arc length formula

\pi \:  \times r  ^{2}  =  \\ \pi \times 8 ^{2}

8 0
2 years ago
Read 2 more answers
Simplify the expression: 4(9c − 7)
vodka [1.7K]

Answer:

36c - 28

Step-by-step explanation:

4(9c − 7)

Distribute

4 * 9c - 4*7

36c - 28

7 0
3 years ago
Matt wrote the number two million, four hundred three thousand, one hundred
damaskus [11]

Answer:

2,403,158

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Algebra 1 question need help !
    6·2 answers
  • Please ignore my work and show step by step for number 9 please and thank you
    12·1 answer
  • Wat is the mixed improper fraction for 50/10=
    11·2 answers
  • Which of the following are solutions to the equation below?
    5·1 answer
  • When you measure the length of an object to the eighth of an inch and again to the fourth of an inch, which measurement is more
    13·1 answer
  • Assume the reserve requirement is 10%. First National Bank receives a deposit of $5,400. If there is no slippage, how much could
    12·1 answer
  • What is the domain of the given function?
    7·1 answer
  • Which of the following describes a rate?
    12·1 answer
  • Which reason justifies statement 2?
    13·1 answer
  • Write 34/9 as a decimal. If necessary, use a bar to indicate which digit or group of digits repeats.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!