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
sergejj [24]
3 years ago
9

Shane earns $3 for completing a chore (c) and $2 for completeing his homework (h). In a week, he earns $24 by completing a total

of 9 chores and homework combined. How many chores (c) and homeworks (h) did he complete?
(find x and y for graph)
Mathematics
1 answer:
ki77a [65]3 years ago
8 0

Answer:

6 for c and 3 for h

Step-by-step explanation:

6*3+3*2

You might be interested in
Solve Systems of Equations Algebracallyy=x+2 y=-3x
Sphinxa [80]

y = x + 2

y = -3x

Do y = -3x in y = x + 2

y = x + 2

-3x = x + 2

-3x - x = 2

-4x = 2

x = -2/4

x = -1/2

Now put x = -1/2 in y = -3x

y = -3x

y = -3.(-1/2)

y = 3/2

5 0
3 years ago
Jeff writes comic strips for a local newspaper. The number of comic strips he creates is represented by the function f(x) = 3x,
Andrei [34K]
If he does three hours, its 9 strips, for four, its 12, six is 18, seven is 21, and nine is 27
7 0
3 years ago
A professor records the difference between the marks scored by the students in the class test last week and those scored in the
dezoksy [38]

Answer: (10.82\ , 13.18)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\mu\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 35  , large sample (n>30)

Mean difference : \overline{x}=12

Standard deviation : \sigma=3

Significance level : \alpha=- 1-0.999=0.001

Critical value : z_{\alpha/2}=z_{0.0005}=3.4807567

Now, the 99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students will be :-

12\pm\ (3.4807567)\dfrac{2}{\sqrt{35}}\\\\=12\pm1.18\\\\=(10.82\ , 13.18)

Hence, the  99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students = (10.82\ , 13.18)

4 0
3 years ago
Find the sum of (x + 5) and (2x + 3) *<br><br> A) 9x + 1<br> B) 5x + 2<br> C) 8x + 3<br> D) 3x + 8
KatRina [158]

Answer:

D

Step-by-step explanation:

We know that we are adding the two expressions because the question says "sum" which means that we need to add. Let's combine like terms. We know that x + 2x = 3x and 5 + 3 = 8 so the answer is 3x + 8.

7 0
3 years ago
Read 2 more answers
Eight children were in a ballet class. Three of them were wearing a pink leotard. What fraction of them did not have a pink leot
leva [86]

Answer:

5/8

Step-by-step explanation:

8 children in class

3 have pink on

8-3 = 5

That means 5 do not have pink

Fraction that do not have pink

those that do not have pink/total

5/8

5 0
3 years ago
Other questions:
  • Solve for d. | - 2d|&lt;10
    8·1 answer
  • The lengths of the three sides of a right triangle are 25,15,20. Which equation correctly expresses the relationship between the
    10·1 answer
  • What is -1/5 divided by 7/5?
    14·1 answer
  • What is 38/6 times 1 1/2
    5·2 answers
  • Can anyone solve these for me?
    15·1 answer
  • PLS HELP ME ITS DUE AT 4
    8·1 answer
  • PLEASE HELPPPPPPPPP MEEE!​
    10·2 answers
  • 2x - 5y + 3z 5x + 9y - 2z
    9·1 answer
  • Help. ill give brainliest
    14·2 answers
  • A store is having a 20%-off sale on all pairs of shoes. Kurt wants to buy a pair of shoes that have a regular price of x dollars
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!