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
kati45 [8]
3 years ago
7

What number u satisfies the equation sqrt{100u-100}=100?

Mathematics
2 answers:
kifflom [539]3 years ago
6 0
The answer is 101
100 squared is 10,000
Then form an equation
100u-100=10,000
        +100    +100
100u=10,100
divide by 100 on both sides
and you get 101 as the answer
Lorico [155]3 years ago
4 0

Answer:

101

Step-by-step explanation:

If $\sqrt{100u-100}=100$, then in words, $100u-100$ is the number whose square root is $100$.

The number whose square root is $100$ is $100^2$, that is, $10{,}000$.

(If that's confusing, think of what number you can replace $\textcolor{red}{\heartsuit}$ with so that the equation $\sqrt{\textcolor{red}{\heartsuit}}=100$ is true. It's true that $\sqrt{10{,}000} = 100$.)

So, we have the equation

$$100u-100=10{,}000.$$Adding $100$ to both sides gives

$$100u=10{,}100,$$then dividing both sides by $100$ gives

$$u=\boxed{101}.$$

You might be interested in
Mathematics of inequality
Lady_Fox [76]

Answer:

(-3x²+5x-2)-2(x²-2x-1)

-3x²+5x-2-2x²+2x+2

-5x²+7x

b = 7

8 0
3 years ago
Rewrite this as a decimal PLEASE!: <br><br> 13/10=???
stepladder [879]
1.3 hope that helps
8 0
2 years ago
Which statement best describes the equation x = 3
FinnZ [79.3K]

Answer:

that x is represented by 3 as the value

Step-by-step explanation:

4 0
3 years ago
A team of three students are working on a language-learning app; they need to develop 300 micro-lessons and 300 micro-tests befo
Olegator [25]

Answer: a) 15 b)

Step-by-step explanation:

Let X be the number of days:

a)

For LESSONS:

Jordan does 10 / day ( 10*X)

Marco 5 / day ( 5*X)

Junyi 5 / day ( 5*X)

For TESTS:

Jordan does 5 / day ( 5*X)

Marco 10 / day ( 10*X)

Junyi 8 / day ( 8*X)

for each they need a total of 300

a) 10X+5X+5X=300 => 20X = 300 => X = 15 days for the lessons

b) 5X+10X+8X = 300 => 23X = 300 => X = 13.04 days for the tests

so they need 15 days to finish both tasks

now if Junyi gets sick we just eliminate his contribution

a) 10X+5X=300 => 15X = 300 => X = 20 days for the lessons

b) 5X+10X = 300 => 15X = 300 => X = 20 days for the tests

so in 20 days they will finish without him

If jordan works 10 hours a day, we just replace him with 10/24

a) 10(10/24)+5X+5X= 300 => X = 29.58 days for the lessons

b) 5(10/24)+10X+8X = 300 => X = 16.51 days for the tests

so at the end to complete both tasks they need 29.58 days

4 0
3 years ago
Find the value of the expression 0.5^10/0.5^7
SIZIF [17.4K]

Answer:

The solution is:

  • \frac{0.5^{10}}{0.5^7}=0.125

Step-by-step explanation:

Given the expression

0.5^{10}\div 0.5^7

Solving

\frac{0.5^{10}}{0.5^7}

\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=x^{a-b}

so

\frac{0.5^{10}}{0.5^7}=0.5^{10-7}

\mathrm{Subtract\:the\:numbers:}\:10-7=3

=0.5^3

=0.125        ∵ 0.5^3=0.125

Therefore, the solution is:

\frac{0.5^{10}}{0.5^7}=0.125

7 0
3 years ago
Other questions:
  • There are six roses in the vase. Alyssa cut some more roses from her flower garden. There are now 16 roses in a vase. How many r
    7·1 answer
  • Mr. Rollosons class had a board game tournament out of 24 games played, Timeka won 10 games. Write 10 over 20 in simpliest form
    9·1 answer
  • Help please!!!! Geometry again!!!
    13·1 answer
  • Which of the values for x and y make the equation 2x + 3y + 4 = 15 true?
    13·2 answers
  • Which of the following is an equation? Please help :(<br> A y/9-3<br> B y/9=3 <br> C-9-3
    10·1 answer
  • The average distance of the Moon from Earth is 386,242,560 m. Represent 386,242,560 in scientific notation.
    8·1 answer
  • Mark buys Apple stock for $100 and its value increases by a factor of 1.5 each week. Which equation represents the relationship
    5·1 answer
  • GIVING THANKS AND BRAINLIEST FOR BEST ANSWER &lt;3<br> ::::::::
    8·1 answer
  • What is seen in the middle of March and April that can’t be seen at the beginning or end of either month?
    8·2 answers
  • The function f is defined by f(x)=x^2+3x-10
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!