3 years ago

Jeffrey ate out for lunch his meal cost 10.50 he would like to leave an 18% tip. how much does the lunch cost in total?

Mathematics

1 answer:

Mila [183]3 years ago

5 0

Answer:

12.39

Step-by-step explanation:

18% 10.50 = 1.89

10.50+1.89 = 12.39

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The perimeter of a kite is 50 mm. The length of one of its sides is 1 mm more than twice the length of another. Find the length

rosijanka [135]

Answer:

The length of the longest side is 13mm

Step-by-step explanation:

Represent the two sides with a and b, where a is the longest

$Perimeter = 50$

$a=b + 1$

Required

Determine the length of the longest side

Perimeter of a kite is calculated as thus:

$Perimeter = 2(a + b)$

Make b the subject in $a=b + 1$

$b = a -1$

Substitute a - 1 for b and 50 for Perimeter in $Perimeter = 2(a + b)$

$50 = 2(a + a - 1)$

Divide through by 2

$25 = a + a - 1$

$25 = 2a- 1$

Add 1 to both sides

$25 + 1 = 2a - 1 +1$

$25 + 1 = 2a$

$26 = 2a$

Solve for a

$a = 26/2$

$a = 13$

<em>Hence, the length of the longest side is 13mm</em>

4 0

2 years ago

Amy has 2 rows of 4 sports trophies on each of her 3 shelves. how many trophies does she have in all?

sleet_krkn [62]

Each shelf holds 8 trophies (2X4=8). 3 shelves times 8 trophies will equal a total of 24 trophies.

7 0

3 years ago

Pls I need help not the best at this.

Mazyrski [523]

Answer:

Step-by-step explanation:

because I did the math and had my mom check it :)

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3 years ago

What percent of 40.4 is 50.5

k0ka [10]

50,5-100%
40,4-х%
x=(40,4*100)\50,5=80%
Answer:80%

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3 years ago

Lindsey's birthday party will cost $20 if she invites 10 guests. How many guests can there be, at most, if Lindsey can afford to

trasher [3.6K]

So its 2$ per guest since
20$/10 guests
2$/1 guest
and if she has 48$ its
48$/24 guests
So she can have 24 guests max if she spends 48$

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3 years ago