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larisa86 [58]
3 years ago
8

Charlie is mailing packages each small package costs hin $2.06 to send each large package costs him $4.30 how much will it costs

him to send 7 small packages and 5 large packages
Mathematics
1 answer:
vodka [1.7K]3 years ago
4 0
Multiple 7 x 2.06 and 5 x 4.30
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Answer: #64, A. #67, A. #68, C


Step-by-step explanation:

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100/20=5

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7 out of 11 students ride the bus home after school. What is the decimal equivalent for the
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0.64

Step-by-step explanation:

7/11=0.63

0.63~~0.64

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What is the value of y enter your answer in the box <br><br> Y=
Rama09 [41]

Answer:

The value of y is 14.

Step-by-step explanation:

To find this, we first can replace the angle written as 2x with 50. Since the sides leading to that point are congruent, we know that they have the same angle.

Now given that fact, we can put the 2 - 50s along with the final angle and set equal to 180 (the measure of the combined angles in all triangles).

50 + 50 + 5y + 10 = 180

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3 years ago
Write an exponential function y = abx for a graph that includes (–3, 16) and (–1, 4) f(x) = 2(0.5)x f(x) = 0.5(2)x f(x) = 4(0.3)
Arisa [49]

Answer: f(x)=2(0.5)^x

Step-by-step explanation:

Given, the exponential function y = ab^x for a graph that includes (–3, 16) and (–1, 4).

On putting these points, we will have

f(-3)=16=ab^{-3}\\\\ f(-1)=4=ab^{-1}

Now,

\dfrac{f(-3)}{f(-1)}=\dfrac{16}{4}=\dfrac{ab^{-3}}{ab^{-1}}\\\\\Rightarrow\ \dfrac{4}{1}=\dfrac{b^{-3}}{b^{-1}}\\\\\Rightarrow\ \dfrac{4}{1}=\dfrac{b}{b^3}=\dfrac{1}{b^2}\\\\\Rightarrow\ b^2=\dfrac{1}{4}\\\\\Rightarrow\ b=\pm\dfrac{1}{2}=\pm0.5

since the multiplicative factor cannot be negative, so b= 0.5.

At b= 0.5

4=a(0.5)^{-1}\\\\\Rightarrow\ 4=a(\dfrac{1}{2})^{-1}\\\\\Rightarrow\ 4=a(2)\\\\\Rightarrow \ a=2

So, the required function is f(x)=2(0.5)^x.

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4 years ago
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