3 years ago

If 4 sandwich rolls cost $0.64,how much will 21 rolls cost ?

Mathematics

1 answer:

Sveta_85 [38]3 years ago

5 0

Answer:

$3.36

Step-by-step explanation:

1. Divide $0.64 by 4 to get the cost of each sandwich roll, $0.16.

2. Multiply $0.16 by 21, $3.36.

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$5.50 markup 75% what is the selling prize

nikklg [1K]

I want u to do 5.50 ×75 ÷ 100 and you will find your answer

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3 years ago

For which pair of functions is (gof)(a) = al-2? O f(a) = a? – 4 and g(a) = Va o fla) = 3a-1 and g(a) = 2a - 2 O f(a) = 5 + a² an

weeeeeb [17]

Step-by-step explanation:

F(a) = 1/2 a-1 and g(a)=2a-2

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3 years ago

Read 2 more answers

A $48 game has a 9.6 percent sales tax. what is the final price jncluding tax?

loris [4]

Answer:

52.61

Step-by-step explanation:

First let turn 9.6% into a decimal

0.096

Then,

48 x 0.096 = 4.608 {Round} 4.61

48 + 4.61=52.61

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2 years ago

The owner of a motel has 2900 m of fencing and wants to enclose a rectangular plot of land that borders a straight highway. If s

navik [9.2K]

Answer:

Step-by-step explanation:

Given that the owner of a motel has 2900 m of fencing and wants to enclose a rectangular plot of land that borders a straight highway.

Fencing is used for 2times length and 1 width if highway side is taken as width

So we have 2l+w = 2900

Or w = 2900-2l

Area of the rectangular region = lw

$A(l) = l(2900-2l) = 2900l-2l^2\\$

Use derivative test to find the maximum

$A'(l) = 2900-4l\\A"(l) = -4$

So maximum when I derivative =0

i.e when $l =\frac{2900}{4} =725$

Largest area = A(725)

= $725(2900-2*725)\\= 1051250$

1051250 sqm is area maximum

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3 years ago

While visiting friends in Brookfield, Janet bought a bike lock that was marked down 20% from an original price of $8.75. If the

Shtirlitz [24]

Answer:

7.49

Step-by-step explanation:

Well first you have to find how much the bike lock cost.

8.75 x 0.2

1.75 = how much 20% of 8.75 is

8.75-1.75

7 = the cost of the bike lock with the 20% markdown

Now you have to find the sales tax.

7 x 0.07

0.49

7 + 0.49

7.49 = total cost with all the stuff

Hopefully this was helpful. There is a shorter method too tho.

3 0

3 years ago