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allsm [11]
3 years ago
15

isabel purchased a prepaid phone card for $20. long distance calls cost 7 cents a minute using this card. isabel used her card o

nly once to make a distance call. if the remaining credit on her card is $17.13 how many minutes did her call last?
Mathematics
1 answer:
Ede4ka [16]3 years ago
5 0
20 - .07c = 17.13
20 - 17.13 = 2.87
2.87/7 = 41

Her call took 41 minutes
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Use the equation below to find y, if m=6, x=3, and b = 10.<br> y=mx+b
ICE Princess25 [194]

Answer:

y = 28

Step-by-step explanation:

y = mx + b

plug in values

y = (6)(3) + (10)

multiply

y = 18 + (10)

add

y = 28

8 0
3 years ago
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What decimal is equivalent to 122/11?&lt;br /&gt;do u divide 11 into 122 ?
Sav [38]
122/11....u divide 122 by 11...or how many times does 11 go into 122.
122/11 = 11.09 with a line over the 09 because it is repeating
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3 years ago
Which describes the relationship between: ∠QVP and ∠PVU?
qaws [65]

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B .... just took test and got a 100

Step-by-step explanation:

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What times what gives me -48 but adds to be -32?
oee [108]

Answer:

a couple of irrational numbers: -16±4√19, approximately {1.436, -33.436}

Step-by-step explanation:

Your question can be cast as the quadratic equation

  x² +32x -48 = 0

The solutions can be found using the quadratic formula:

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_____

<em>Comment on the equation we used</em>

We notice that when p and q are roots, the equation can be written ...

  (x -p)(x -q) = 0 = x² -(p+q)x +pq

You want p+q = -32, pq = -48, so the equation is ...

  x² -(-32)x +(-48) = 0

  x² +32x -48 = 0 . . . . . . with parentheses eliminated

5 0
3 years ago
Given the following functions f(x) and g(x), solve f[g(10)] and select the correct answer below: f(x) = 10x + 8 g(x) = x + 9 2,0
ikadub [295]
ANSWER
f(g(10)) = 198

EXPLANATION

The given functions are;

f(x) = 10x + 8
and

g(x) = x + 9


To find
f(g(10))
we need to find

f(g(x)) = f(x + 9)


f(g(x)) =10(x + 9) + 8



f(g(x)) =10x + 90 + 8


f(g(x)) =10x + 98



f(g(10)) = 10(10) + 98


f(g(10)) = 100 + 98


f(g(10)) = 198


The last option is the correct answer
7 0
3 years ago
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