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
boyakko [2]
3 years ago
5

Xanthe and Sarah do some fundraising for their local nursing home. Together they raised $$$302. If Xanthe raised $$$102 more tha

n Sarah, and Sarah raised $$$p:
Mathematics
1 answer:
Dimas [21]3 years ago
6 0

Given :

Xanthe and Sarah together raised $302 .

If Xanthe raised $102 more than Sarah .

To Find :

The amount raised by Sarah .

Solution :

Let , amount raise by Sarah is x .

So , by the relation given , price raised by Xanthe is 102 + x .

Now , sum of their amount raised is :

x+(x+102)=302\\\\2x=302-102\\\\x=\$100

Therefore , the amount raised by Sarah is $100 .

Hence , this is the required solution .

You might be interested in
8x over 8 to the power of 5 = 8 to the power of 7
neonofarm [45]
Ok so if the equation is this
8x/8( 5 exponent) = 8 (7 exponent) the answer should be 8( 11 exponent)
My work is attached below.
Sorry for my awful handwriting!

6 0
3 years ago
The table shows ordered pairs for a polynomial function, f.
Dovator [93]

f(x) means the function of x

so  the function is the input is x and the output is f(x), read "f of x". The output f(x) is sometimes given an additional name y by y = f(x). The example that comes to mind is the square root function on your calculator.

4 0
3 years ago
Find the midpoint of the segment with the given endpoints (4, -10) , (9, -2)
frutty [35]

midpoint = ( \frac{13}{2}, - 6 )

using the midpoint formula

midpoint = [ \frac{1}{2}(4 + 9), \frac{1}{2}(- 10 - 2 )] = ( \frac{13}{2}, - 6)


5 0
3 years ago
A data set with a mean of 34 and a standard deviation of 2.5 is normally distributed
tresset_1 [31]

Answer:

a) z= \frac{34-34}{2.5}= 0

z= \frac{39-34}{2.5}= 2

And we want the probability from 0 to two deviations above the mean and we got 95/2 = 47.5 %

b) P(X

z= \frac{31.5-34}{2.5}= -1

So one deviation below the mean we have: (100-68)/2 = 16%

c) z= \frac{29-34}{2.5}= -2

z= \frac{36.5-34}{2.5}= 1

For this case below 2 deviation from the mean we have 2.5% and above 1 deviation from the mean we got 16% and then the percentage between -2 and 1 deviation above the mean we got: (100-16-2.5)% = 81.5%

Step-by-step explanation:

For this case we have a random variable with the following parameters:

X \sim N(\mu = 34, \sigma=2.5)

From the empirical rule we know that within one deviation from the mean we have 68% of the values, within two deviations we have 95% and within 3 deviations we have 99.7% of the data.

We want to find the following probability:

P(34 < X

We can find the number of deviation from the mean with the z score formula:

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

And replacing we got

z= \frac{34-34}{2.5}= 0

z= \frac{39-34}{2.5}= 2

And we want the probability from 0 to two deviations above the mean and we got 95/2 = 47.5 %

For the second case:

P(X

z= \frac{31.5-34}{2.5}= -1

So one deviation below the mean we have: (100-68)/2 = 16%

For the third case:

P(29 < X

And replacing we got:

z= \frac{29-34}{2.5}= -2

z= \frac{36.5-34}{2.5}= 1

For this case below 2 deviation from the mean we have 2.5% and above 1 deviation from the mean we got 16% and then the percentage between -2 and 1 deviation above the mean we got: (100-16-2.5)% = 81.5%

7 0
3 years ago
A contradiction has no solutions. True or False?
Eddi Din [679]

Answer:

false

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Someone!!! Please help!!!!!!!!!!
    7·1 answer
  • 1/5x &lt;-3 <br> Solve the inequality and graph the solution
    9·2 answers
  • Which relation is a function?
    9·2 answers
  • Hunter invested $580 in an account paying an interest rate of 4.6% compounded monthly. Assuming no deposits or withdrawals are m
    10·1 answer
  • A nature center has a fish tank in the shape of a rectangular prism. The tank is 10 feet long, 8 1/4 feet wide, and 6 feet tall.
    7·2 answers
  • A zoo has 15 Emperor penguins. The Emperor make up30% of all the penguins at the zoo. How many penguins live at the zoo?
    10·1 answer
  • GUYS PLEASE HELP!!A gardener plans to construct a triangular garden using logs for the edges. She has logs that measure
    15·1 answer
  • A certain sum of money doubles itself in 10 years in how many years will it triple itself​
    12·1 answer
  • 30 fortyths into a decimal​
    5·1 answer
  • Describe two ways to simplify the expression 4x(3 + 2)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!