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4 years ago

A) Increase £101 by 16% Show working B) Decrease £36 by 21% Show working

1 answer:

7 0

A)
If 100 increase to 116
so (101×116)/100 = 117.16
answer is £117.16

B)
If 100 decrease to 79
so (36×79)/100 = 28.44
answer is £28.44

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John has a kite shaped like a rhombus. It’s two diagonals measure 22 inches and 13 inches. What is the area of John’s kite?

ozzi

The area of rhombus is product of two diagonals divided by 2

So you have 22 inches and 13 inches so that would be 22·13/2 = 143

Final answer: 143 in²

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4 years ago

What is the slope??? Please show step by step!!

aksik [14]

Answer:

In order to find the slope, we would need to format the coordinates like rise over run (y/x)

We find two points, (-6, 12) and (-5, 14)

Now we subtract the y coordinates from each other and do the same for the x coordinates

14 and 12 are our y coordinates so that will be our rise

-5 and -6 are x coordinates so that will be our run

14 - 12 2

_______ = ______

-5 - (-6) 1

2 is the slope

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3 years ago

I would really like to have some help and know how to do this

NISA [10]

If K=C+273.15
and in a. C=200° then K=200+273.15

8 0

3 years ago

Write the equation of the line that passes through the two points: (-4, 11) and (2,-4)

snow_tiger [21]

Answer:

y= - $\frac{5}{2}$ x+1

Step-by-step explanation:

Utilize the formula of $\frac{y2-y1}{x2-x1}$ to find the distance between two points, or in this case, the equation of the line that passes through two points.

Applying the given points to identify the slope

1. Plug the coordinates into the y and x values. $\frac{-4-11}{2+4}$ =- $\frac{15}{6}$ .

1.5. Simplify; divide both the numerator and the denominator by 3. - $\frac{5}{2}$ .

Applying slope and a point to find the y-intercept of the equation of a line

1. Utilize the formula of y=mx. Though this sounds strange, morph the sign of equality into subtraction.

1.5. Result: y-mx

2. Do this for both points.

First point: (-4,11)

y-mx

11 + $\frac{5}{2}$ (-4)

11 + -10 (11-10)

Plug the result and the slope into y=mx+b to find the slope of the line.

Result: y=- $\frac{5}{2}$ x+1.

Check your answer to confirm that the value of y is true for both points

1. Do the same thing you did with the first point, but use the second point this time.

y-mx

-4 + $\frac{5}{2}$ (2)

-4 + 5

Plug the result and the slope into y=mx+b to find the slope of the line.

Result: y=- $\frac{5}{2}$ x+1. Identical to point one's result.

In conclusion, both of the results are the same. Therefore, the equation of the line must be y=- $\frac{5}{2}$ x+1.

3 0

4 years ago

The width of a rectangle is 6 2/3 inches. The length of the is twice it’s width. What so the perimeter of the rectangle?

Nookie1986 [14]

$\text {Width = } 6\dfrac{2}{3} \text { inches}
$

The length is twice its width:
$\text {Length = } 2 \times 6\dfrac{2}{3} \text { inches}$

Change to improper fraction:
$\text {Length = }2 \times \dfrac{20}{3} \text { inches}$

Combine into single fraction:
$\text {Length = } \dfrac{40}{3} \text { inches}$

Find Perimeter :
$\text {Perimeter = Length + Length + Width + Width}$

$\text {Perimeter = } \dfrac{40}{3} + \dfrac{40}{3} + \dfrac{20}{3} + \dfrac{20}{3} = \dfrac{120}{3} = 40 \text { inches}$

$\bf \text {Answer: Perimeter = 40 inches}$

6 0

4 years ago

Read 2 more answers