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seropon [69]
1 year ago
9

With show work needed. a and b.

Mathematics
1 answer:
Andru [333]1 year ago
7 0

a)

Solution,

Given,

Cost for 1 pen = $ 1.50

= 1.50×100 cents

= 150 cents

Cost for 1 ruler = 80 cents

No. of Pens needed to be bought = x

No. of rulers needed to be bought = x+10

Now,

Cost for x pens = x×150 cents

= 150x cents

Cost for (x+10) rulers = (x+10)×80 cents

= 80x cents+800 cents

Then,

Total cost = 150x cents+(80x cents+800 cents)

= 150x cents+80x cents+800 cents

= 230x cents+800 cents

= $(230x ÷ 100)+$(800 ÷ 100)

= $2.3x + $8

Therefore,Louise spent $2.3x and $8 as total amount

b)

Sorry,I dont know inequality

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A model of a soccer ball is made up of regular pentagons and hexagons.
Monica [59]

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<u>For part A</u>,

We want to find area of pentagon (5 sided figure) given apothem is 1.38 in and side length as 2 inch.

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We want to find area of hexagon (6 sided figure) given apothem is 1.73 in and side length as 2 inch.

If we look at the picture shown (attached), we can see that a triangle is formed. What is the area of this triangle?

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ANSWER:

Area of Pentagon is 6.9 square inches.

Area of Hexagon is 10.4 square inches.

5 0
2 years ago
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For logarithmic equations,  

log

b ( x ) = y

logb(x)=y

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by=x

such that  x > 0

x>0 ,  b > 0

b>0 , and  b ≠ 1

b≠1

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b=5 ,  x = 25

x=25 , and  y   2

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b = 5

b=5

x =

25

x=25

y = 2

y=2

Substitute the values of  b

b ,  x

x , and  y

y

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b y =

x

by=x

.

5 squared

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