2 years ago

I’m not sure and please explain how you got the answer pleaseee

Mathematics

1 answer:

STatiana [176]2 years ago

5 0

Answer:

Step-by-step explanation:

Because 30+18=48, and 3(10+6)=48

10+6=16

3•16=48

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Change to Scientific Notation .0000000005

zimovet [89]

5x10^-10 is the answer

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2 years ago

Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her fi

anastassius [24]

Answer:

Grades to be scored in 3rd exam = 88

Step-by-step explanation:

Given that average of 3 numbers is 85.

First two numbers are 81 and 86.

To find:

3rd number so that average is 85

Solution:

Let the third number = $x$

Formula for average is:

$Average = \dfrac{Sum\ of\ numbers}{Total\ count\ of\ numbers}$

Here, sum of numbers = $81+86+x =167+x$

Total count of numbers = 3

$85 = \dfrac{167+x}{3}\\\Rightarrow x=255-167\\\Rightarrow \bold{x=88}$

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3 years ago

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dmitriy555 [2]

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45 seats - 5 deluxe = 40 economy

so the most profit would be 40 economy and 5 deluxe
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3 years ago

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Lapatulllka [165]

Answer:

slope = 1

Step-by-step explanation:

$\frac{y_{2} -y_{1} }{x_{2}- x_{1} }$