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
pychu [463]
3 years ago
8

The product of a number and 9 less than the number is 90. Find the number.

Mathematics
1 answer:
Goryan [66]3 years ago
7 0

Let's say this number is a:
a*(a-9) = 90
a^2-9a-90 = 0
(a-15)(a+6) = 0
a = 15 or a = -6
Therefor a. would be the correct answer :)
You might be interested in
ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing. Show your work or give an explaination.
MrRa [10]

Answer:

C 0 solutions

Step-by-step explanation:

8x+47 = 8(x+5)

Distribute

8x+47 = 8x+40

Subtract 8x from each side

47 = 40

This is never true so there are no solutions

8 0
3 years ago
Read 2 more answers
Pls help I will mark brainliest
olya-2409 [2.1K]

Answer: Q= -31

Step-by-step explanation:

3 0
3 years ago
If area of a square is 121 cm2 what is side length
12345 [234]
The answer is 30.25 or as a fraction 30 1/4
3 0
3 years ago
Help please!! i need this last one to finish!!!! 44 points!!
AleksandrR [38]

Answer:

The point is at about (4.5, 100).

Step-by-step explanation:

Minka's line is p = 22t, which has a y-intercept of 0.

Kenji's line is p = 50 + 11t, which has a y-intercept of 50.

Find the line with y-intercept at 0 and the line with y-intercept at 50. Follow the two lines until they intersect. The point of intersection is about (4.5, 100).

You can find this point by setting the two equations equal to each other:

22t = 50 + 11t

Subtract 11t from both sides.

11t = 50

t = 50/11 ≈ 4.545

Then you can find the p value for this point by plugging t = 4.545 into either equation.

p = 22(4.545) = 99.99

p = 50 + 11(4.545) = 99.995

On the graph the point is about (4.5, 100).

5 0
3 years ago
Hannah has a biased coin.
muminat
Look at it this way:

When you flip a coin, the probability of it landing with EITHER side showing
is 100%. 

This leads us to the rule ...

               The sum of the probabilities of
               all possible outcomes is 100%.

For a coin:  (probability of heads) plus (probability of tails) = 100%.

That just says:  We're 100% sure that the coin will land with either
heads or tails up.

An "honest" coin gets heads 50% of the time and tails the other 50%.

But if the coin is all bent and squashed and has a feather stuck to
one side and a wad of gum on the other side so that it comes up
heads 70% of the time, then the coin isn't 'honest'.  But it still has to
land EITHER heads OR tails, so the sum of the probabilities is still 100%.

So the probability of heads is 30%.
7 0
3 years ago
Other questions:
  • IS 0.6 GREATER THAN OR LESS THAN OR EQUAL TO 0.60
    15·2 answers
  • Select all the equation that represent the hanger.
    13·2 answers
  • Fishing hook E is at -7.1 feet it descends another 3.25 feet what it’s depth now
    8·1 answer
  • I need help finding the answer
    14·2 answers
  • Find the amount paid for the loan.<br> $4800 at 9.9% for 4 years
    15·1 answer
  • The frequency table below shows the hourly wages of 22 factory workers. How many are paid $10.50 per hour or more? 1. The freque
    7·1 answer
  • A: 5/7 <br><br> B : 6/7 <br><br> C: 13/7<br><br> D: 17/7
    13·2 answers
  • AD contains BC and AD=40. A point on AD is chosen at random. The probability that the point is also on BC is 0.2. What is BC?​
    13·1 answer
  • Please answer correctly! :)
    12·1 answer
  • The scatter plot shows the number of minutes people had to wait for service at a restaurant and the number of staff available at
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!