MATHEMATICS MIDDLE SCHOOL

The sum of three consecutive numbers is 57. What is the largest of these numbers?18
19
20
21

Answers

Answer 1
Answer: x+x+1+x+2=57
3x+3=57
3x=54
x= 54/3
x= 18


x+1= 19
x+2= 20

Therefore 20 is the largest
Answer 2
Answer:

Answer:

20

Step-by-step explanation:

just took the test

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Answers

This is a great question for a calculator
But answer the quotient for this problem is 0.0751820273384202 but to round it up to the nearest hundredth, the answer will be 0.08
0.0751820273384202  this is the answer are you happy.

At McCord Middle School, 40 percent of the 500 students ride their bikes or walk to school. How many students ride their bikes or walk to school?

Answers

40% of 500 is 200 students

Answer:

Your answer to this question is 200 (c)

Step-by-step explanation:

Isabelle is mixing red paint with blue paint to make purple paint. She adds 3/10 of a fluid ounce of red to 11/15 of a fluid ounce of blue to make1 1/30 fluid ounces of purple. How many fluid ounces of red paint will she need to make 3 fluid ounces of purple paint?A. 2/5
fluid ounce
B. 11/20
fluid ounce
C. 27/31
fluid ounce
D. 1 13/50
fluid ounces

Answers

Answer: C. 27/31 fluid ounce

Step-by-step explanation:

First, let's turn the mixed number into a fraction:

1(1)/(30)=((1*30)+1)/(30) =(31)/(30)

Then, to solve the problem we can use a simple rule of three:

31/30 ----------3/10

  3  ----------- x

This can be read as: If to make 31/30 fluid ounces of purple you need 3/10 fluid ounces of red, then to make 3 fluid ounces of purple how many fluid ounces of red will you need?

x=(3*(3)/(10) )/((31)/(30) ) =((9)/(10) )/((31)/(30) )=(9*30)/(10*31)=(270)/(310)=(27)/(31)

So, to make 3 fluid ounces of purple paint, Isabelle will need 27/31 fluid ounces of red paint.
the answer b-11/20 fluid ounce

Which of the following is equivalent to 140 centiliters?A.) 0.140 liters
B.) 14.0 millimeters
C.) 0.00140 kiloliters
D.) 1.4 deciliters

Answers

The answer is C) because one litre=100 centiliters, and one kilolitre=one litre which means that one kilolitre =100000 centiliters
So 140 centiliters are 140 divided by 100000 kiloliters=0.00140 kiloliters

The correct answer is:

C.) 0.00140 kiloliters

Explanation:

To convert this, we can use a metric conversion chart:

Kilo- Hecto- Deca- base deci- centi- milli-

Starting with 140 centiliters, converting to deciliters moves to the left 1 place; this moves the decimal to the left one, making it 14.0 deciliters.

Converting to liters, we move to the left 2 places; this moves the decimal to the left two, making it 1.40 liters.

Converting to milliliters, we move to the right 1 place; this moves the decimal to the right one, making it 1400 milliliters.

Converting to kiloliters, we move to the left 5 places; this moves the decimal left 5, making it 0.00140 kiloliters.

Plz help me!!! i will only mark brainlylest 4 a true answer!!!!

Answers

Answer:

2. is y=1.2x+6. 4. is y=2x+10

Step-by-step explanation:

Please help I need by tomorrow

Answers

#4 is +2 try the rest
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