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
emmasim [6.3K]
3 years ago
12

Help me with my math please!!!!

Mathematics
1 answer:
astra-53 [7]3 years ago
7 0

Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test. I have it with me right now and it has everything I've ever been taught about math in it so it might help you.

You might be interested in
​$9500 is​ invested, part of it at 12​% and part of it at 9​%. For a certain​ year, the total yield is ​$1032.00. How much was
alina1380 [7]
Let's say the quantities are "a" and "b"
so... whatever "a" and "b" are, they add up to 9,500, thus

a + b = 9,500

now, "a" was invested at 12%, or 12/100
it yielded some amount, actually 12% of a, or 12/100 * a or 0.12a

the "b" amount was invested at 9%, or 9/100
it yielded 9% of b, or 9/100 * b or 0.09b

whatever 0.12a is, and 0.09b is, their sum or total yield was 1032
thus
0.12a + 0.09b = 1032

thus     \bf \begin{cases}
a+b=9,500\implies \boxed{b}=9,500-a\\\\
0.12a+0.09b=1032\\
--------------\\
0.12a+0.09(\boxed{9,500-a})=1032
\end{cases}

solve for "a" to see how much was invested at 12%

what about "b"? well, b = 9500 - a
4 0
3 years ago
Consider two populations of coins, one of pennies and one of quarters. A random sample of 25 pennies was selected, and the mean
Alexus [3.1K]

Answer:

No, the conditions for normality have not been met because the sample size for the quarters is not large enough and no information is given about the distributions of the populations.

Step-by-step explanation:

"The Kolmogorov-Smirnov test (K-S) and Shapiro-Wilk (S-W) test are designed to test normality by comparing your data to a normal distribution with the same mean and standard deviation of your sample. If the test is NOT significant, then the data are normal, so any value above .05 indicates normality"

5 0
3 years ago
Read 2 more answers
mary spends 40% of her monthly earnings on rent and 10% of the remaining amount on entertainment. If she spends $800 for rent, h
liraira [26]

Answer:

<em>$120</em>

Step-by-step explanation:

40% of the earnings is spent on rent.

The earnings is an unknown, so we call it x.

The rent is $800, so 40% of x equals $800.

40% * x = 800

0.4x = 800

x = 800/0.4

x = 2000

She earns $2000 per month.

After paying rent, the remaining amount is

$2000 - $800 = $1200

She spends 10% of the remaining amount on entertainment.

10% of $1200 = 10% * $1200 = 0.1 * $1200 = $120

5 0
3 years ago
It takes approximately 4.65 quarts of milk to make a pound of cheese. Express this amount as a mixed number in simplest form.
ikadub [295]
The correct answer would be 4 and 13/20
4 0
3 years ago
Please help!!!!<br> I'm being timed I will give Branly
lyudmila [28]

Answer:

11 X 34 then divide that by two which is 187

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Dario’s school has rented several buses to take students on their field trip to visit the Science Museum in the neighboring town
    10·1 answer
  • Graph the equation c=225s+6750
    15·1 answer
  • How do you graphically represent a point? Explain
    13·1 answer
  • Write the equation of the parabola that has the vertex at point (− 1/2 ,2.3) and passes through the point (5,2 3/4 ).
    15·1 answer
  • Ax + By = C for x. plz sove
    5·1 answer
  • If the sum of a number and eight is doubled, the result is three less than the number. Find the number.
    6·1 answer
  • Natalie is out for a run. She decides to run a park in town. The length of sides of the park are 15 feet, 1o feet, 12 feet and 1
    11·1 answer
  • The following length measurements were taken by students using several different measuring devices. Find . the average of the me
    10·2 answers
  • A triangle has two sides that are 6in and 13in. What could the length of the third side of the triangle be?
    5·1 answer
  • A fair coin is flipped twice. What is the probability of showing heads on both flips?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!