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
Flura [38]
3 years ago
12

A student's cost for last semester at her community college was $2700. She spent $297 of that on books. What percent of las

Mathematics
1 answer:
aniked [119]3 years ago
5 0

Answer:

Answer- 12%

Step-by-step explanation:

You might be interested in
Find the diameter of the object.<br> 2 in.<br> diameter:
Softa [21]

Answer:

4 inches

Step-by-step explanation:

The radius is the line from the center of the circle to the edge. We can assume the black line on the orange is the radius.

We want to find the diameter. The diameter is twice the radius, or

d=2r

We know the radius is 2, so we can substitute that in for r

d=2*2

Multiply

d=4

So, the diameter is 4 inches

5 0
4 years ago
Read 2 more answers
If you give me the correct answer I will give you brainliest plz help
liq [111]
It’s 1 and 2.
Comment if you need clarification.
3 0
3 years ago
Marla scored 70% on her last unit exam in her statistics class. When Marla took the SAT exam, she scored at the 70th percentile
Lerok [7]

Answer:

The difference is that Marla's exam in her statistics class was graded by percent of correct answers, in her case 70%, while the SAT is graded into a curve, taking other students' grades also into account, and since she scored in the 70th percentile, Marla scored better than 70% of the students.

Step-by-step explanation:

Marla scored 70% on her last unit exam in her statistics class.

This means that in her statistics class, Marla got 70% of her test correct.

When Marla took the SAT exam, she scored at the 70th percentile in mathematics.

This means that on the SAT exam, graded on a curve, Marla scored better than 70% of the students.

Explain the difference in these two scores.

The difference is that Marla's exam in her statistics class was graded by percent of correct answers, in her case 70%, while the SAT is graded into a curve, taking other students' grades also into account, and since she scored in the 70th percentile, Marla scored better than 70% of the students.

3 0
3 years ago
A population of values has a normal distribution with μ = 247 and σ = 62.2. You intend to draw a random sample of size n = 16. (
nadya68 [22]

Answer:

a) z = \frac{295.2-247}{62.2}=0.772

And using the normal distribution table or excel we got:

P(Z>0.772) = 1-P(Z

b) z = \frac{295.5 -247}{\frac{62.2}{\sqrt{16}}}= 3.119

And we can use the normal standard table or excel in order to find the probability and we got:

P(z>3.119) =1-P(Z

Step-by-step explanation:

For this case we know that the random variable of interest is normally distributed with the following parameters:

X \sim N (\mu = 247, \sigma =62.2)

Part a

We want to find this probability:

P(X>295.2)

And we can use the z score formula given by:

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

Replacing we got:

z = \frac{295.2-247}{62.2}=0.772

And using the normal distribution table or excel we got:

P(Z>0.772) = 1-P(Z

Part b

We select a random sample of size n = 16 and we try to find this probability:

P(\bar X >295.2)

And we can use the z score formula given by:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And replacing we got:

z = \frac{295.5 -247}{\frac{62.2}{\sqrt{16}}}= 3.119

And we can use the normal standard table or excel in order to find the probability and we got:

P(z>3.119) =1-P(Z

8 0
3 years ago
F(x) = -3x + 7 x = -2
Marat540 [252]

Answer:

X= 1/2

Step-by-step explanation:

-3x+7x=2

4x = 2

4x/4 + 2/4

X= 1/2

8 0
3 years ago
Read 2 more answers
Other questions:
  • If $(x,y)$ satisfies the simultaneous equations \begin{align*} 3xy - 4x^2 - 36y + 48x &amp;= 0, \\ x^2 - 2y^2 &amp;= 16, \end{al
    14·1 answer
  • What is the best approximation for the circumference of a circle with a radius of 125 m?
    12·2 answers
  • Mrs. Barrett will be serving 40 people at Lydee’s birthday party. She plans to make three meatballs for each person. Mrs. Barret
    7·1 answer
  • Brainliest answer will be given!
    7·1 answer
  • What is 7% of $7.40​
    15·1 answer
  • Write -1/2x + y = 10 in slope-intercept form
    6·1 answer
  • Please answer this question if you are correct i will mark brainliest
    11·1 answer
  • a boat traveled 14 miles per hour downstream. the trip upstream was at a speed of 10 miles per hour. what is the speed of the bo
    11·1 answer
  • Least to greatest 4, |-2|,3,|5|,-1 helppppppl
    5·2 answers
  • Please help lol. In ISS and cant solve
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!