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
Kay [80]
3 years ago
14

Write an equivalent expression for each of the following please: a. x+x+x+2x+x=. b.(x+2)+(x+2). c. y+y+y+y+10+y+1

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
5 0

Answer:

A 6x

B 2x+4

C 5y + 11

Step-by-step explanation:

You might be interested in
Draw and label a picture to show how knowing 7+7 helps you find 7+8
madreJ [45]
Lets say we have 7 items, and we add 7 more.
Then, in the next situation, we have 7 items and we add 8 more. Now we know that 8 = 7 + 1, so we are actually performing 7 + 7 +1. Our diagram already shows us the value of 7 + 7 so we just add 1.
The items can be represented by circles, triangles etc
3 0
4 years ago
They all decide to meet at school, and they each bring their two ingredients.
miskamm [114]

Step-by-step explanation:

they have 13 coups of flour 1000 grams of butter 7 cups of milk 7 cups of shugar and 6 eggs am not sure but maybe more than 4

4 0
3 years ago
2. Suppose that a particular medical procedure has a cost that is approximately normally distributed with a mean of $19,800 and
Lina20 [59]

Answer:

a) 0.5085

b) -1.6551

c) 0.8103834

Step-by-step explanation:

Data provided in the question:

Mean = $19,800

Standard deviation, s = $2,900

Now,

z score = [ X - Mean ] ÷ s

a) The procedure costs between $18,000 and $22,000

For X = $22,000

z-score = [ $22,000 - $19,800 ] ÷ $2,900

= 0.7586

For X = $18,000

z-score = [ $18,000 - $19,800 ] ÷ $2,900

= -0.62069

P(procedure costs between $18,000 and $22,000)

= P(z < 0.7586) - P( z < -0.62069)

= 0.7759541 - 0.2674018           [ P value from standard z table ]

= 0.5085

b) The procedure costs less than $15,000

For X = $15,000

z-score = [ $15,000 - $19,800 ] ÷ $2,900

= -1.6551

thus,

The procedure costs less than $15,000

P (z < -1.655172 )

= 0.0489448                      [ P value from standard z table ]

c) The procedure costs more than $17,250

z-score = [ $17,250 - $19,800 ] ÷ $2,900

= -0.87931

thus,

The procedure costs more than $17,250.

P (z > -0.87931  ) = 0.8103834

4 0
3 years ago
the Royal fruit company produces two types of fruit drinks. The first type is 20% pure fruit juice, and the second type is a 45%
AlexFokin [52]

We know that 20% of the first type of juice is pure fruit juice and 45% of second type of juice is pure fruit juice.

Now we have to make 30 pints of a mixture that is 35% pure.

Let x be the number of pints of first type of juice and y be the number of pints of second type of juice.

So, x+y=30 (Equation 1)

Since, 20% of x + 45% of y = 35.3% of 30

\frac{x}{5}+\frac{9y}{20}=10.5 (Equation 2)

Solving equations 1 and 2,

we get y=18 and x=12.

So, 12 pints of first type of juice and 18 pints of second type of juice are used.

6 0
3 years ago
I have 3 identical math books, 3 identical English books, and 2 identical French books. In how many distinguishable ways can I a
Reil [10]
The answer is 18.
If you multiple 3 x 3 x 2 you get 18 different ways to arrange the books
4 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone answer all of these???please
    5·1 answer
  • Need help real quick
    5·1 answer
  • A) Work out the size of AOD.
    8·1 answer
  • Please help me with this.
    13·2 answers
  • 14. 3/64 + 2/32 + 5/16 = <br>what is the answer ​
    8·2 answers
  • What are the coordinates of the ride located 3.5 units away from the Merry-Go-Round and 1.25 units away from Roller Coaster 1? D
    13·1 answer
  • Find the circumference<br><br><br> please help :)
    6·1 answer
  • Which of the following expressions results in 0 when evaluated at x = 4?
    7·1 answer
  • Carrie loves carrots so much that she ate 30 of them for lunch. Her sister doesn’t like carrots as much and only ate 5 of them f
    11·2 answers
  • If ABCD is dilated by a factor of 2 the coordinate of C’ would be
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!