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
Sladkaya [172]
3 years ago
8

Tia cuts a 4-meter 8-centimeter wire into 10 equal pieces.Marta cut a 540-centimeter wire into 9equal pieces. How much longer is

one of Marta's wires than one of Tia's
Mathematics
1 answer:
attashe74 [19]3 years ago
3 0
 Tia's wire is 4 meter and 8 centimeter long which is  that is  408 centimeter long and it is divided in 10 pieces.
tia = 408/10 = 40.8 cm
 Tia's wire pieces are <span>40.8 cm long

 Marta's wire, it is 540 centimeter long and is divided into 9 pieces
marta = 540/9 = 60 cm
 Marta's wires are longer than Tia's
Marta's wire is 19.2 cm longer than tias  

60cm - 40.8cm= 19.2 cm </span><span />
You might be interested in
Eliseo pays $8.99 for a one-point canister of Georgia pecans. Write and solve a proportion to determine the cost of 4 ounces of
dlinn [17]

Answer:

The cost of 4 ounces of the pecans is <u>$2.24</u>.

Step-by-step explanation:

Given:

Eliseo pays $8.99 for a one-pound canister of Georgia pecans.

Now, to solve a proportion to determine the cost of 4 ounces of the pecans she needs for a particular recipe.

Let the cost of 4 ounces of the pecans be x.

1 pound = 16 ounces.

So, using unitary method we get cost of 1 ounces:

Cost of 16 ounces of the pecans = $8.99.

Cost of 1 ounces of the pecans = $8.99 ÷ 16 = $0.56.

According to question we set proportion:

4:x=1:0.56

So, to get by cross multiplication method:

\frac{4}{x} =\frac{1}{0.56}

<em>By cross multiplying we get:</em>

2.24=x

x=2.24

Thus, the cost of 4 ounces of the pecans is $2.24.

4 0
3 years ago
Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________
Tresset [83]

Using the normal distribution, it is found that the correct option is:

  • D. 1; 100

In a <em>normal distribution</em> with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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

  • It measures how many standard deviations the measure is from the mean.

In this problem:

  • The mean on the Wechsler Scale is of 100, hence \mu = 100.
  • The standard deviation is of 17, hence \sigma = 17.
  • Brianna had an score of 117, hence X = 117

Then:

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

Z = \frac{117 - 100}{17}

Z = 1

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

7 0
3 years ago
A lightbulb is installed. With probability 1/3 , it burns out immediately when it is first installed. With probability 2/3 , it
Andrej [43]

Answer:

1 time unit

Step-by-step explanation:

There is a 1 in 3 chance that the time until the bulb burns out is zero, and a 2 in 3 chance that the time is the average between 0 and 3 (since it is uniformly distributed). Therefore, the expected value for the time until it burns is:

E(x) = \frac{1}{3}*0+\frac{2}{3} *\frac{0+3}{2}\\ E(X) = 1

The expected value of the time until the lightbulb burns out is 1 time unit.

3 0
3 years ago
Bruce is solving a system of equations.
Valentin [98]

Answer:

Option 3,4,5 are correct.

Step-by-step explanation:

The system of equations are:

3x+5y=9\,\,\,\,(1)\\x-y=-5\,\,\,\,(2)

Multiply equation (2) with -3 and add with equation (1)

3x+5y=9\\-3x+3y=15\\-------\\8y=24\\y= 24/8\\y=3

Value of y is 3

Putting value of y in eq(2)

x-y=-5\\x-3=-5\\x=-5+3\\x=-2

Value of x is -2

So, Option 3,4,5 are correct.

Keywords: System of Equations

Learn more about System of Equations at:

  • brainly.com/question/13168205
  • brainly.com/question/2115716
  • brainly.com/question/3739260

#learnwithBrainly

7 0
3 years ago
Divide 345609875by 13​
grin007 [14]

Answer:

26585375

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Help me find the slope on the line. Thanks in advance :)
    13·2 answers
  • If f ( x ) is a linear function, f ( − 1 ) = − 4 , and f ( 2 ) = 1 , find an equation for f ( x ) in slope-intercept form.
    7·1 answer
  • 0.083333 rounded to nearest thousandth
    15·1 answer
  • За + 4a = -21 Solve the problem
    14·1 answer
  • Y varies inversely with x k = 4.5 What is the value of x when y is 9?
    5·1 answer
  • A bag contains red and blue marbles, such that the probability of drawing a blue marble is . an experiment consists of drawing a
    13·2 answers
  • A three-dimensional figure has the following properties:
    9·2 answers
  • Write a numerical expression
    8·1 answer
  • Please help me quickly with this guys it’s 2:43pm and it’s due at 3pm
    13·1 answer
  • F = (4x-3)au carre - (x+3)(3-9x)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!