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Lubov Fominskaja [6]
3 years ago
9

The telephone company offers two billing plans for local calls. Plan 1 charges $34 per month for unlimited calls and Plan 2 char

ges 514 per month plus $0.05 per
a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2
b. Explain the meaning of the answer to part a.
a. Let x represent the number of monthly calls. The answer is
(Type an inequality.)
Mathematics
1 answer:
lawyer [7]3 years ago
6 0

Answer:

more than 200 calls

Suppose number of calls = x

According to plan 1: Total monthly charge is $24

According to plan 2: Fix charge is $16 and $0.04 per call

cost of x's call = $0.04x

and monthly charge according to plan 2 = 0.04x + 16

a)  Plan 1 is more economical than plan 2.

0.04x + 16 > 24

solve it for x

.04x > 8

x > 200

b)   So,  if more than 200 calls are made then Plan 1 is more economical.

Step-by-step explanation:

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Step-by-step explanation:

There is a time limit dude, googling is a faster way

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8 0
2 years ago
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maria [59]
7 . 112
8 . 246

for number 7 , you multiply 8 by 16 to get 128 then subtract both windows so you get 112

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Shayna invests $2,103 in a savings
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Answer:

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Step-by-step explanation:

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3 years ago
The rate of planting the grass is ` x per square meter. Find the cost of planting the grass on a
kotegsom [21]

Step1: Find the area of the triangular lawn

             Given, base of the triangle is y metres and the height is z metres

             Area of the triangle =

2

1

​

× base × height

             Therefore, area of the triangular lawn =

2

1

​

yz metre  

2

.

Step 2:Find the cost of planting the grass

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             Therefore, the cost of planting the grass on a triangular lawn =cost per square meter × area of the triangular lawn

              =x×

2

1

​

yz=

2

1

​

xyz

Hence, the cost of planting the grass on a triangular lawn whose base is y metres and  height is z metres is Rs.  

2

1

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x y z.

Step-by-step explanation:

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2 years ago
I need the answer ASAP Ill give five stars to whoever answers it.
zmey [24]
33
a triangle is 180 degrees so 180-124-23=33
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