3 years ago

Ira wants to buy a skateboard. She paid $120 including the sales tax of 7%.

Mathematics

1 answer:

satela [25.4K]3 years ago

8 0

the original cost was $111.60.

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The perimeter of the triangle below is 97 cm.

Sloan [31]

Answer:

The length of EF = x = 18 cm

Option A is correct.

Step-by-step explanation:

Ware given perimeter of triangle = 97 cm

We need to find length of EF = x = ?

The length of EG = x+7

The length of EF = x

The length of GF = 3x

The formula used is: $Periemter \ of \ triangle= Sum \ of \ all \ sides \ of \ triangle$

Putting values and finding x i.e length of EF

$Periemter \ of \ triangle= Sum \ of \ all \ sides \ of \ triangle\\97=x+7+x+3x\\97-7=5x\\5x=90\\x=\frac{90}{5}\\x=18 \ cm$

So, value of x=18 cm

The length of EF = x = 18 cm

Option A is correct.

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3 years ago

What’s is the area of the shape?

Ksivusya [100]

so you multiply 6 and 3 and it is 18

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3 years ago

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madam [21]

Answer:

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Step-by-step explanation:

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3 years ago

Find the 30th term of the following sequence. 1, 7, 13, 19,.. 174. 175. 180. 181.

shepuryov [24]

The first term a = 1,

Common difference, d: 7 - 1 = 6.

a(n) = a + (n -1)d,

For 30th term. = 1 + (30 -1)*6

= 1 + 29*6 = 1 + 174 = 175

8 0

3 years ago