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4 years ago

Please help, 10 points

Mathematics

1 answer:

mario62 [17]4 years ago

8 0

let q= quarters, let n = nickles.

Note that there are 4 times as many quarters as nickles: q = 4n

There is $2.10 in all

n + 4n = 2.10, or (A) (i believe if i read it correctly) is your answer

hope this helps

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The value of two numbers if their sum is 21 and their difference is 3

iragen [17]

Answer:

9 and 12

Step-by-step explanation:

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3 years ago

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Whiskers the cat weighs 2 and 2 over 3 kg.piglio weighs 4 kg. How many times as heavy as piglio is whiskers

ruslelena [56]

Answer:

Whiskers is two-third times as heavy as piglio is.

Step-by-step explanation:

Given:

Weight of whiskers is, $W=2\frac{2}{3}\ kg$

Weight of piglio is, $P=4\ kg$

In order to compare their weights, we have to divide both the weights and then express one weight in terms of the other.

Therefore, dividing whiskers weight by piglio's weight, we get:

$\frac{W}{P}=2\frac{2}{3}\div 4\\\frac{W}{P}=\frac{8}{3}\div \frac{4}{1}(\textrm{4 can be rewritten as 4/1 in fraction form})$

Now, when we divide two fractions, we replace the division sign by multiplication and reverse the second fraction. This gives,

$\frac{W}{P}=\frac{8}{3}\times \frac{1}{4}\\\frac{W}{P}=\frac{8\times 1}{3\times 4}\\\frac{W}{P}=\frac{2}{3}$

Now, expressing 'W' in terms of 'P', we multiply both sides by 'P. This gives,

$W=\frac{2}{3}P$

Therefore, the weight of whiskers is two-third times as heavy as piglio is.

4 0

3 years ago

What is the formula and slope of (18, -7) and (18, 2)

Luden [163]

Answer:

Step-by-step explanation:

Coordinate points: (18, -7) and (18,2)

m= rise / run or $\frac{ y_2 - y_1} {x_2 - x_1}$

m = slope

(x1, y1) = coordinates of first point in the line

(x2, y2) = coordinates of second point in the line

So your rise is...

2 - (-7)

and you run is...

18 -18

Rise = 9

Run = 0

Now, do you see the issue...

You can not have a number over 0 (* a great way to remember is N/0 spells no: "N" being number and "0" being zero)

The slope or the equation 9 / 0 (9 divided by 0 or 9 over 0) is ERROR in the calculator which means the slope of these points are undefined

The line is vertical when this happens

*Side Note: if you were to have 0 as you rise and 9 as your run, 0/9 is ok because that means you have a zero slope meaning that you have a horizontal line

0 divide by 9 is zero

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3 years ago

6. The length of a rectangle is 8 cm more than twice the width. The perimeter of the rectangle is 34

balandron [24]

Answer: Width = 3 and Length = 14

Step-by-step explanation:

Length = 2W + 8

Width = W

Perimeter= 2(width) + 2(length)

34 = 2W + 2(2W +8)

Distribute

34 = 2W + 4W + 16

Combine like terms

34 = 6W + 16

Solve for W

34- 16 = 6W

18 = 6W

W = 3

Substitute 3 in for W in Length equation.

L = 2(3) + 8 = 14

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4 years ago

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ehidna [41]

Answer:

75%

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minimum data point to 1st quartile contains 25% of data

1st quartile to median contains 50% of data

median to 3rd quartile contains 75% of data

3rd quartile to maximum data point represents all of the data

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