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Montano1993 [528]
1 year ago
7

Work out percentage change to 2 decimal places when a price of £97 is increased to £99.99

Mathematics
1 answer:
Korvikt [17]1 year ago
8 0

Answer:

2.99

Step-by-step explanation:

99.99 - 97 = 2.99

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Saturn’s rings span up to about 3/4 of the distance between the Earth and its moon. If Saturn’s rings span up to 179,000 kilomet
larisa [96]

Answer:

The distance between Earth and its moon is about 238,667\ km

Step-by-step explanation:

Let

y ------> Saturn’s rings span up

x -----> the distance between the Earth and its moon

we know that

The linear equation that represent this situation is

y=\frac{3}{4}x -----> equation A

y=179,000\ km -----> equation B

substitute B in equation A and solve for x

179,000=\frac{3}{4}x

Multiply by 4/3 both sides

x=179,000(\frac{4}{3})

x=238,667\ km

4 0
2 years ago
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Triangular numbers can be represented with equilateral triangles formed by dots. The first five triangular numbers are 1, 3, 6,
Alisiya [41]
Direct variation is y = kx  where y  would be the value of the number and x would be its position in the sequence, k is a constant 

so for consecutive values y/x would be a constant k 
In this case its not true becuse for example  3/1 = 3 and 6/3 = 2 

so there is no direct variation here.
7 0
2 years ago
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marty has 80 to spend at a sporting goods store. he will spend 56 on a shirt, and then buy some darts. each box of darts cost 6.
Mariana [72]

Next time, Shay, please include the instructions. I'm assuming that our job here is to determine the largest # of boxes of darts that can be purchased.


Shirt cost + x(box of darts cost) = Initial amount

$56 + x($6/box) = $80


Then 56 + 6x = 80, or 6x= 24, or x = 4. He can buy 4 boxes of darts.


8 0
2 years ago
a horizontally laid standard weight pipe has a diameter of 10 inches and is 12 feet long. The pipe is filled 9 inches high with
Eduardwww [97]

Answer:

d isósceles hijo muy graciosa ya no me acuerdo de nada y tu q ases hablas con el

4 0
2 years ago
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A palm tree is supported by two guy wires as shown in the diagram below. Which trig expression can be used to find the height on
Volgvan

Answer:

D. tan(30^\circ+45^\circ) is the correct answer.

Step-by-step explanation:

The given situation can be represented as a figure attached in answer area.

B is the base of tree.

C is the base of wires.

A and D are the end of 2 wires supporting the tree.

\angle DCB =45^\circ\\\angle ACB =75^\circ\\

Here, we need to find the Height of the tree which is represented the by side AB.

and we are given that bases of wires and tree base are at a distance 4 ft.

i.e. side BC = 4 ft

If we look at the \triangle ABC, we are given the base BC and the \angle ACB, and the perpendicular is to be find out.

We can use trigonometric identity:

tan\theta =\dfrac{Perpendicular}{Base}

tan 75^\circ = \dfrac{AB}{BC}\\\bold {tan (45+30)^\circ }= \dfrac{AB}{4}\\\Rightarrow AB = \bold {tan (45+30)^\circ } \times 4 = 14.93\ ft

Hence, D. tan(30^\circ+45^\circ) is the correct answer.

5 0
1 year ago
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