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
Alex Ar [27]
3 years ago
6

Solve the radical equation x-8= 37-4x

Mathematics
2 answers:
bulgar [2K]3 years ago
8 0

Step-by-step explanation:

<u>x-8</u><u>=</u><u>3</u><u>7</u><u>-</u><u>4</u>

<u>x</u><u>+</u><u>4</u><u>x</u><u>=</u><u>3</u><u>7</u><u>+</u><u>8</u>

<u>5</u><u>x</u><u>=</u><u>4</u><u>5</u>

<u>x</u><u>=</u><u>4</u><u>5</u><u>/</u><u>5</u>

<u>x</u><u>=</u><u>9</u>

Mariana [72]3 years ago
8 0
Answer: X=9

Explain:
x+4x-8=37

5x=37 +8

5x=45

Divided 45/5

x=9
You might be interested in
While traveling to Europe phlegm exancheged 250 US dollars he spent 150 euros on his trip after returning to the United States h
anzhelika [568]
1euro = 1.3687 USD 

So 150 Euros = 150*1.3687 USD 

=<span>205.305 USD 

So he spent $205.305 USD on his trip. 

He started off with $250 so to find the amount left we just take 

250 - 205.305 

= $44.695 

Or 44 dollars and 69.5 cents. It's a weirdly exact amount, sure, but the question had a very precise exchange rate, so we'll assume this is fine. </span>
4 0
3 years ago
An aptitude test has a mean score of 80 and a standard deviation of 5. The population of scores is normally distributed. What pr
konstantin123 [22]

Answer:

2.28% of tests has scores over 90.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 80, \sigma = 5

What proportion of tests has scores over 90?

This proportion is 1 subtracted by the pvalue of Z when X = 90. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{90 - 80}{5}

Z = 2

Z = 2 has a pvalue of 0.9772.

So 1-0.9772 = 0.0228 = 2.28% of tests has scores over 90.

8 0
3 years ago
PLEASE PLEASE SOMEONE PLEASE HELP ME PLEASE PLEASE SOMEONE PLEASE HELP ME WITH MY HOMEWORK PLEASE HELP
bogdanovich [222]

Answer:

0.725

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Frank and Gertrude mow lawns for extra money over the summer. Frank's income is determined by f(x) = 5x + 15, where x is the num
Zepler [3.9K]
H(x)=5x+15+4x+20

if x=4, together it would be 5(4)+15+4(4)+20
h(x)=20+15+16+20=71
Divided by 2, they'd each get 35.5

If Frank worked alone, he'd get 5(4)+15= 35
He'd make more working together. 
3 0
3 years ago
Evaluate:<br> Σ10, 8(27-1) =
vfiekz [6]

Answer:

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Help me out pleaseeeeee!!
    11·1 answer
  • Suppose you flip a coin and spin a spinner that is divided into 8 equal regions. Of the 8 equal regions, 3 are red, 4 are black
    8·1 answer
  • P(x) = x + 1x² – 34x + 343<br> d(x)= x + 9
    9·1 answer
  • Plane hkp and plane rkp are two distinct planes. name the intersection of plane hkp and plane rkp.
    8·1 answer
  • Portia' s goal is to run a total of 10 miles every week. She ran 1.901 miles on Monday, 2.037 miles on Wednesday, and 3.159 mile
    9·1 answer
  • What is the length of BC?
    13·2 answers
  • Help me and ill mark you brainliest
    11·1 answer
  • The hypotenuse of a right triangle measures 15 cm and one of its legs
    15·2 answers
  • Solve for y.<br><br> –4(y − 15) + –6 = –10 What does y equal
    10·1 answer
  • Juan is participating in a 4 -day cross-country biking challenge. He biked for 61, 70, and 59 miles on the first three days. How
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!