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
Mademuasel [1]
3 years ago
5

When a number is increased by 7.1%, the result is 89. What is the original number to the nearest tenth?​

Mathematics
1 answer:
balu736 [363]3 years ago
3 0

Answer:

The original number is 83.1

Step-by-step explanation:

Let

x -----> the original number

Remember that

100\%+7.1\%=107.1\%=107.1/100=1.071

The increased number is equal to multiply the original number by the factor 1.071

so

89=1.071x

Solve for x

Divide by 1.071 both sides

x=83.1

You might be interested in
A triangle has ∠A, ∠B, and ∠C.<br> ∠B is 20° more than ∠A.<br> ∠C is double ∠B.<br> How big is ∠A?
san4es73 [151]

Answer:

30°

Step-by-step explanation:

∠A + ∠B + ∠C = 180

∠B = ∠A + 20

∠C = 2 * ∠B

<A + (∠A + 20) + (2 * ∠B) = 180

<A + (∠A + 20) + (2 * (∠A + 20)) = 180

<A + (∠A + 20) + 2∠A + 40 = 180

4∠A + 60 = 180

4∠A = 120

∠A = 30

5 0
3 years ago
Read 2 more answers
What is the best estimate for the sum 2/9 + 10/11 ?
Gelneren [198K]

Answer:

4. 0 + 1 = 1

Step-by-step explanation:

since 2/9 is a bit small

and

since 10/11 is almost whole

3 0
3 years ago
Read 2 more answers
Find the common ratio of the geometric sequence 6, 48, 384, ...​
gregori [183]

Answer:

r = 8

Step-by-step explanation:

The common ratio r of a geometric sequence is

r = \frac{a_{2} }{a_{1} } = \frac{a_{3} }{a_{2} } = ..... = \frac{a_{n} }{a_{n-1} }

Then

r = \frac{48}{6} = \frac{384}{48} = 8

8 0
3 years ago
What is the rate of A, what is the rate of B, which equation has a greater rate?
11Alexandr11 [23.1K]

Answer: Rate of A: 5/6

Rate of B: 3/5

A has a higher rate of change

Step-by-step explanation: You calculate slope/rate of change by determining the rise over the run. The rate of change in A is 5/6x, this is bigger than the slope of B.

5 0
3 years ago
How can you use a number line to find the sum of -4 and 6?
mixer [17]

Answer:

see explanation for number line\ $29$

Step-by-step explanation:

this is the answer guys.

6 0
3 years ago
Other questions:
  • I need help "quick
    12·1 answer
  • I really need help pleasee!!
    5·1 answer
  • The total cost to produce x handcrafted wagons is C(x) = 110 + 7x - x^2 + 2x^3. Find the marginal cost when x = 8.
    11·1 answer
  • How do you solve the inequality 12 &lt; x + 5 so that the variable "x" is on the left side?
    10·2 answers
  • What is the mean of the data set?
    9·2 answers
  • A culture started with 2000 bacteria after 3 hours it grew to 2,400 bacteria. Predict how many bacteria will be present after 18
    6·2 answers
  • The point (–3, –4) is reflected across the x-axis. What quadrant is the reflected point located? A. Quadrant I B. Quadrant II C.
    15·1 answer
  • The map of a park shows that the swings are 9 inches away from the monkey bars. The scale of the map is 2 inches represent 5 met
    8·1 answer
  • −39 = −0.6k<br> what does k equal
    8·2 answers
  • X=3y+10 x=-8y-12<br><br> can u guys help me find the steps to solve this equations
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!