MATHEMATICS MIDDLE SCHOOL

Simplify: Negative four and one-fifth minus negative thirteen and one-tenth

Answers

Answer 1
Answer: -4 1÷5 - (- 13 1÷10)

first we should turn these into improper fractions by multiplying the whole number by the denominator then add the numerator.

4 × 5 = 20 + 1 = 21
13 × 10 = 130 + 1 = 131

(-21/5) - (-131/10)

To subtract fractions we want to find a common denominator so we can multiply the numerator and denominator of (-21/5) by 2 to get (-42/10)

(-42/10) - (-131/10)

Since we are subtracting a negative, that becomes a positive

(-42/10) + 131/10

131 - 42 = 89

89/10

Now we can change it back into a mixed fraction:

8 and nine-tenths or 8 9÷10
Answer 2
Answer:

Answer:

agree with guy on top

hehed

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9.64 rounded to the nearest tenth
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RS has endpoints R(-2,3) and S(-8,-2) whats the midpoints? whats the quadrants?

I need some help. Can anyone help?

Answers

Answer: y = -(2/3)x + 5

Step-by-step explanation:

The line has negative slope. So, option 2nd and 3rd can be eliminated.

y-intercept is at y = 5 when drawing line of best fit, so option 1st can be eliminated.

Carmen has 10 boxes of seashells with 6 seashells in each box. She gave away 5 seashells. Which steps can you use to find the number of seashells she has now?

Answers

Answer: the answer is four

Final answer:

To find the number of seashells Carme has now, multiply the initial number of seashells by the number of boxes and subtract the number she gave away.

Explanation:

To find the number of seashells Carmen has now, follow these steps:

  1. Multiply the number of boxes she initially had (10) by the number of seashells in each box (6). This gives you the total number of seashells she started with (60).
  2. Subtract the number of seashells she gave away (5) from the total number she started with. This will give you the number of seashells she has now.

Using the steps above, we can calculate:

  1. Initial number of seashells = 10 boxes x 6 seashells per box = 60 seashells
  2. Number of seashells she has now = 60 seashells - 5 seashells she gave away = 55 seashells

Therefore, Carmen now has 55 seashells.

Learn more about Finding the number of seashells Carmen has now here:

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Jamie has 3 times as many pencils as pens. She has at least 18 pencils. How many pens does Jamie have?

Answers

She would have 6 pens because 6 times 3 pencils is 18
Jamie has 6 pencils, because for this problem you have to do: pencils/how many more of pencil=pens.18/3=6 

Sarah is buying a pair of jeans that regularly cost $60. They are on sale for 40% off. What is the sales price of the jeans?

Answers

The answer is $36. $60 - 40% = $36 (60•.40)

Plz help me with this

Answers

This question is not even trying to test your arithmetic.  It's just testing
to see whether you know how to read numbers in words properly.

When you read numbers in words, the only time you ever say "and"
is for a decimal point.  There are no decimals in this question, so the
"and" is not a part of any numbers.

The question gives you two numbers. The word "and" is the marker
that's BETWEEN them.  The two numbers are 1,300 and 950 .

The first thing the question wants you to do is write the numerical
expression for all the words.  That's    (1300 - 950) / 4 .

The next thing you're supposed to do is"evaluate the expression" ...
find out what number it all boils down to.  I don't think you'll have
any trouble with that now.

Find the equation of a line that has a slope of 4 and passes through the point (-1, 8).(multiple choice)

A. y = -1x + 8

B. y = 4x + 4

C. y = 4x + 12

D. y = 4x

Answers

Slope intercept form: y=mx+b, with m being the slope and b being the y-intercept.

Plug 4 in for the slope, as that's given in the question:

y=4x+b

Now, we need to solve for the y-intercept, because the answer could be B, C, or D. You can do this by plugging in the given coordinate (-1,8) for x and y in the equation respectively.

8=4(-1)+b

Multiply.

8=-4+b

Add four to both sides.

12=b

The y-intercept is 12. Plug 12 into the equation for b:

y=4x+12 is the completed equation.

The answer is C.

I hope this helps :)
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