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
yulyashka [42]
3 years ago
9

6 stools and 4chairs cost$58 but 5 stools and 2 chairs cost$ 35 find the cost of each stool and each chair

Mathematics
1 answer:
Ivahew [28]3 years ago
6 0
Stool = s, chair = c
6s+4c=58 ---(1)
5s+2c=35 ---(2)

(2)*2; 10s+4c=70 ---(3)
(3)-(1); 4s=12
so s=3
from (2)
5s+2c= 35
5(3)+2c=35
2c = 35-15
2c = 20
so c=10

then the cost of each stool is $3 and the cost of each chair is $10
You might be interested in
Select all statements below which are true for all invertible n×n matrices A and B
nirvana33 [79]
The statements that are rue for <span>all invertible n×n matrices A and B are:
</span><span>(A+B)(A−B)=A^2−B^2
</span>and 
<span>(ABA^−1)^4=AB^4A^−1 
</span>From the above results we can conclude that the correct options among all the options that are given in the question are option "B" and option "E". I hope the answer helps you.
7 0
3 years ago
This table gives a few (x,y) pairs of a line in the coordinate plane.
fomenos

Answer:

(-22,0)

explanation:

You subtract 10 from 8 and you get -2 and if you subtract 10 from -2 you get -12 so there for you are subtracting by 10 on the x-values so if you do -12 - 10 = -22 making your answer (-22,0).

Hope this helps (. ❛ ᴗ ❛.)

8 0
3 years ago
I need help ASAP. Thank you
Fed [463]
Here is the link to the graph. You can scale it and tweak it.
https://www.desmos.com/calculator/mawkflj9ws

Hope this helped!


8 0
3 years ago
The nicotine content in a single cigarette of a particular brand has a distribution with mean 0.9 mg and standard deviation 0.1
Ad libitum [116K]

Answer:

The answer to the question is;

The probability that the resulting sample mean of nicotine content will be less than 0.89 is 0.1587 or 15.87 %.

Step-by-step explanation:

The mean of the distribution = 0.9 mg

The standard deviation of the sample = 0.1 mg

The size of the sample = 100

The mean of he sample = 0.89

The z score for sample mean is given by

Z =\frac{X-\mu}{\sigma/ \sqrt{n} } where

X = Mean of the sample

μ = Mean of the population

σ = Standard deviation of the population

Therefore Z = \frac{0.89-0.90}{0.1/\sqrt{100} } = -1

From the standard probabilities table we have the probability for  a z value of -1.0 = 0.1587

Therefore the probability that the resulting sample mean will be less than 0.89 = 0.1587 That is the probability that the mean is will be less than 0.89 is 15.87 % probability.

             

7 0
3 years ago
The width of a rectangle is 2 cm less than 8 times the length. The perimeter is 68 cm. What are the width and length of the rect
eduard

Answer:

length=4

width=30

Step-by-step explanation:

length=x

width=8x-2

(8x-2)*2+2x=68

16x-4+2x=68

18x=72

x=4 (Length)

4*8=32, 32-2=30(width)

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the largest number that can be rounded to 2500 when rounded to the nearest ten
    14·2 answers
  • What is the slope of the perpendicular lines?
    5·1 answer
  • Suppose a student's score on a standardize test to be a continuous random variable whose distribution follows the Normal curve.
    9·1 answer
  • ILL GIVE BRAILIEST JUST ANSWER IT RIGHT
    15·1 answer
  • Brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
    12·2 answers
  • Find the parametric equation of the line r(t), 0 ≤ t ≤ 1, between P = (2, − 3, 1) and Q = (− 2, 1, 7).
    15·1 answer
  • Can someone please help me with this math question please. Please
    8·1 answer
  • What is the slope of a line that passes through the two points (8,3) and (4,9)?
    8·1 answer
  • A restaurant offers a catering service which costs $25.00 per person with a $119.50 service charge. For parties of 50 or more pe
    8·1 answer
  • Complete the table to show the steps for combining like terms.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!