MATHEMATICS MIDDLE SCHOOL

A contractor purchases 4 dozen pairs of padded work gloves for ​$58.56 SheShe incorrectly calculates the unit price as ​$14.64 per pair for the expense report. What is the correct unit​ price? What is the​ error?

Answers

Answer 1
Answer: She multiplied 14.64 by 4.
But there are 4 dozen making it 12*4=48 gloves
Answer 2
Answer: the correct unit price is 1.22 per each pair where as she calcualted the price of 12 gloves as 14.64

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Two sisters open saving accounts with $60 each that their grandmother gave them. The first sister adds $20 each month to her account. Her sister adds $40 every two months to her $60. If the sisters continue to make deposits at the same rate, when will they have the same amount of money?
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Round 81.139 to the nearest tenth

Answers

If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up (+1).


If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down (no change).

81.139 ≈ 81.1
the first place after the decimal place is the tenth's place, then next is the hundreth's and so on

when rounding, if the number is 5 or more then round up , if less than 5, round down
exg\
.5 runded up=1
.4 rounded would be 0


so 81.139
disregard the 9
81.13
3 is less than 5
81.10

163 rounded to the nearest ten

Answers

Answer is 160 because 3 is closer to 60 so its 160


its probably 160 dude.

Function Equations(1 pt)
Which equation represents the graph of the linear function?

A. y= - 1/3x+1
B. y=-3x-1
C. y= 3x+1
D. y= -3x+1

Answers

We can rule out B and C immediately because they have positive slopes.  The slope of the graph is negative.

The answer to the problem is D, because the slope is -3.

In a group of 60 triangular and square tiles, 25% are Red and 75% are blue. The ratio of triangles to Squares is 1:2. Seventy percent of the squares are blue. Find the number of each kind of tile (red or blue squares or triangles

Answers

In the group of 60triangular and square tiles, there are 28 blue squares, 12 red squares, 3 red triangles, and 17 blue triangles.

It is given that in a group of 60 triangular and square tiles, 25% are Red and 75% are blue. The ratio of triangles to Squares is 1:2. Seventy percent of the squares are blue.

It is required to find the number of each kind of tile.

What is a fraction?

Fraction number consists of two parts one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

Total number of triangular and square tiles = 60

25% are red means:

\rm = 60*(25)/(100)  ⇒ 15 are red triangular and square tiles.

75% are blue means:

\rm = 60*(75)/(100)   ⇒ 45 are blue triangular and square tiles

The ratio of triangles to squares is 1:2 which means that out of 60 there is a total of 20 are triangles and 40 are squares.

70% of the squares are blue ie.

\rm = 40* (70)/(100)  ⇒ 28 are blue squares.

The number of total red squares = 40 - 28  ⇒ 12

The number of total red triangles = 15 - 12  ⇒ 3

The number of total blue triangles = 60-28-12-3  ⇒  17

Thus, in the group of 60triangular and square tiles, there are 28 blue squares, 12 red squares, 3 red triangles, and 17 blue triangles.

Learn more about the fraction here:

brainly.com/question/1301963
I think your answer will be 20:40 because 1+2=3 60 divided by 3 = 20 20*1 =20 20*2=40 so you have 20:40

Points V, W, X, Y, and Z are graphed on a number line. The coordinate of point V is –8. What points are at a distance of 5 units from point V?

Choose all answers that are correct.

A.
W = –13

B.
X = –8

C.
Y = –3

D.
Z = 3

Answers

Using the absolute value:
|x-(-8)|=5\n|x+8|=5\nx+8=5 \vee x+8=-5\nx=-3 \vee x=-13

A and C

I’m hoping I did this one right

Answers

The answer actually is 4,245 BUT that is the correct way to do it because you take the smaller population away from the larger population in order to find their difference in sizes.
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