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
iren2701 [21]
2 years ago
11

On a quiz, Tom received 2 points for each correct spelling word, and 4 points for each correct definition, Tom received 80 point

s for a total of 30 correct
responses. The equations and graph below can be used to determine the number of Tom's correct responses, where x represents the number of
correct spelling words and y represents the number of correct definitions.
Correct responses: 2 + y = 30
Total points: 2x + dy = 80

*Graph*

Tom got BLANK words correct and BLANK definitions correct

Words correct
A. 10
B. 20
C. 30

Definitions correct
A. 10
B. 20
C. 30

Mathematics
1 answer:
IRINA_888 [86]2 years ago
5 0

Tom got 20 words correct and 10 definitions correct

<h3>Equation</h3>

An equation is an expression used to show the relationship between two or more numbers and variables.

Let x represent the number of correct spelling word, and y represent the number of correct definition. Hence:

2x + 4y = 80   (1)

Also:

x + y = 30   (2)

The solution to the equation is:

x = 20, y = 10

Tom got 20 words correct and 10 definitions correct

Find out more on Equation at: brainly.com/question/13763238

You might be interested in
HELP PLEASE!!! Which equation can be used to calculate the area of the shaded triangle in the figure below?
kykrilka [37]
It’s the first one 44 square feet
5 0
3 years ago
Read 2 more answers
a traveler has 7 pieces of luggage . how many ways can the traveler select 3 pieces of luggage for a trip
7nadin3 [17]
Well, you could assign a letter to each piece of luggage like so...

A, B, C, D, E, F, G

What you could then do is set it against a table (a configuration table to be precise) with the same letters, and repeat the process again. If the order of these pieces of luggage also has to be taken into account, you'll end up with more configurations.

My answer and workings are below...

35 arrangements without order taken into consideration, because there are 35 ways in which to select 3 objects from the 7 objects.

210 arrangements (35 x 6) when order is taken into consideration.

*There are 6 ways to configure 3 letters.

Alternative way to solve the problem...

Produce Pascal's triangle. If you want to know how many ways in which you can choose 3 objects from 7, select (7 3) in Pascal's triangle which is equal to 35. Now, there are 6 ways in which to configure 3 objects if you are concerned about order.

7 0
3 years ago
A student on a piano stool rotates freely with an angular speed of 2.85 rev/s . The student holds a 1.50 kg mass in each outstre
Vlad1618 [11]

Answer:r'=0.327 m

Step-by-step explanation:

Given

N=2.85 rev/s

angular velocity \omega =2\pi N=17.90 rad/s

mass of objects m=1.5 kg

distance of objects from stool r_1=0.789 m

Combined moment of inertia of stool and student =5.53 kg.m^2

Now student pull off his hands so as to increase its speed to 3.60 rev/s

\omega _2=2\pi N_2

\omega _2=2\pi 3.6=22.62 rad/s

Initial moment of inertia of two masses I_0=2mr_^2

I_0=2\times 1.5\times (0.789)^2=1.867

After Pulling off hands so that r' is the distance of masses from stool

I_0'=2\times 1.5\times (r')^2

Conserving angular momentum

I_1\omega =I_2\omega _2

(5.53+1.867)\cdot 17.90=(5.53+I_o')\cdot 22.62

I_0'=1.397\times 0.791

I_0'=5.851

5.53+2\times 1.5\times (r')^2=5.851

2\times 1.5\times (r')^2=0.321

r'^2=0.107009

r'=0.327 m

7 0
3 years ago
Which expression is equal to 5^4⋅5^8 ? 512 54 52 5−4
KiRa [710]

Answer is 5^12 which is choice A (assuming you meant to put the ^ symbol)

The bases are the same (both are 5), so you add the exponents: 4+8 = 12. The base stays the same the entire time.

So, 5^4*5^8 = 5^(4+8) = 5^12

3 0
3 years ago
(Photo above! How would I find the area of this?
boyakko [2]
It is basically a square attached by a small rectangle. So figure out the area of the square and add it to the area of the rectangle and don't forget to label your answer. Hope this helped :)

7 0
4 years ago
Read 2 more answers
Other questions:
  • The height,h,increased by 6 inches
    7·1 answer
  • MARKING BRAINLIEST I NEED HELPPPPP ASAPPPPP
    10·1 answer
  • The public library has volunteers shelve book after they have been returned.lisa shelve 165 book in 25 minutes.patricia shelves
    6·1 answer
  • An equation for 10/50=12/60
    9·1 answer
  • 25 ate only breakfast, 15 ate only lunch, 50 ate only dinner, 60 ate only lunch and breakfast, 225 ate only lunch and dinner, 50
    5·1 answer
  • You deposit $300 in an account that pays 1.48% annual interest. What is the balance after 1 year if the interest is compounded d
    15·2 answers
  • A storage chest is shown. What is the volume in cubic feet?
    12·1 answer
  • Find the simplified product where x&gt;=0
    6·2 answers
  • Ella has 10 more CDs than her friend Krystal has. Iris has 3 times as many CDs as Ella has. Which of the following can be used t
    9·1 answer
  • What is the slope-intercept form equation of the line that passes through (2, 4) and (4, 10)?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!