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
lesya692 [45]
3 years ago
12

Solve for x 27=9^x-1

Mathematics
1 answer:
Galina-37 [17]3 years ago
4 0
27  = 9^x-1

3^3 = 9^x-1


3^3 = 3^2(x-1)

3    = 2 (x-1)

1.5 = x-1

x = 2.5
You might be interested in
There are 7 more quarters than nickels. If there is a total of $ 2.65 in coins, how many quarters are there?
Solnce55 [7]

o=nickel

O=quarter

O O O O O O O O O O + o o o =2.65

(2.50+.15=2.65)

there are 10 quarters total, and 3 nickels

5 0
3 years ago
The area of the larger circle is 36 find the circumference of one of the smaller circles
Yanka [14]

Can you post the image?

4 0
3 years ago
The width of a triangle is six more than twice the height. The area of the triangle is 88in2. Find the height and base of the tr
malfutka [58]

For this case we have that by definition, the area of a triangle is given by:

A = \frac {b * h} {2}

Where:

b: It is the base of the triangle

h: It is the height of the triangle

According to the statement data we have:

b = 6 + 2h

Substituting we have:

88 = \frac {(6 + 2h) * h} {2}\\176 = 6h + 2h ^ 2\\2h ^ 2 + 6h-176 = 0

We divide between 2 on both sides:

h ^ 2 + 3h-88 = 0

We factor by looking for two numbers that, when multiplied, are obtained -88 and when added together, +3 is obtained.

These numbers are +11 and -8.

(h + 11) (h-8) = 0

We have two roots:

h = -11\\h = 8

We choose the positive value.

Thus, the base of the triangle is:b = 6 + 2 (8) = 22

Answer:

The base of the triangle is 22 units.

5 0
3 years ago
Read 2 more answers
Determine the solution to the equation. 2(9x - 6) = 6(3x - 2) + 2
Irina-Kira [14]
The answer is bbbbbbbbb
7 0
3 years ago
What expression can be used to 80% of 120
12345 [234]

Answer:

59%

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Jules owns a square plot of land that measures 30 yards on each side. He plans to divide the land in half by building a fence, a
    15·2 answers
  • 3(5-2h)+9=-30 I need to find h
    11·2 answers
  • Which has the greater area: a 6 ‐centimeter by 4 1 2 ‐centimeter rectangle or a square with a side that measures 5 centimeters?
    14·1 answer
  • John Smith has found a​ short-term investment opportunity. He can invest ​$6,000 at 0.75 % interest for 15 days. How much intere
    8·1 answer
  • Kim is solving a quadratic trinomial equation and has correctly factored it into (x+3)(x-2)=0.
    14·1 answer
  • At the ice cream shop there are 14 shakes sold for every 6 malts. What is the ratio of malts to shakes? don't forget to simplify
    5·1 answer
  • A triangle has a perimeter of 165 cm. The first side is 65 cm less than twice the second side. The third side is 10 cm less than
    8·2 answers
  • Find EF in parallelogram CDEF.
    11·1 answer
  • Y varies directly w² and inversely as the cube of x. what is y when w is 3 and x is2​
    5·2 answers
  • 8.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!