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3 years ago

7.8+3.5w-1.5 for w = 6.8

Mathematics

2 answers:

Alex3 years ago

8 0

This question is so easy.
7.8+(3.5x6.8)-1.5
=7.8+23.8-1.5
=30.1

Rufina [12.5K]3 years ago

8 0

First multiple 3.5 with w which is 6.8, then collect 7.8 with the result (23.8) and finally substrack 1.5.
to make it easier after multiple write the numbers on end.

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Is 23 a prime, composite or neither

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3 years ago

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A bowl has 15 granola bars and 10 fruit bars what is the ratio of granola bars to fruit bars

kaheart [24]

Answer:

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Step-by-step explanation:

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4 years ago

8. Find x and why please

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3 years ago

Help please

viva [34]

Answer:

Easy way to distinguish:

Linear function forms a AP and exponential function forms a GP

We see f(x) is series of:

8, 14, 20, 26, 32

This is a AP with common difference of 6 and the first term of 8

g(x) is series of:

4, 12, 36, 108, 324
This is a GP with common ratio of 3 and the first term of 4

1. g(x) is exponential function:

g(x) =4*3ˣ

2. f(x) is linear function:

f(x) = 6x + 8

7 0

3 years ago

trevor tutors french for $15 and hour and scoops ice cream for $10 an hour. he is going to work 15 hours this week. at least how

yaroslaw [1]

Total number of hours = 15

Let the hours spent tutoring french be x.

Therefore hours spent on scooping ice cream = (15 - x)

Amount: Tutoring french is $15 an hour, total for x hours = 15x

For scooping ice cream it is $10 an hour 10*(15 - x) = 150 - 10x

To make more than $180

15x + (150 - 10x) > 180

15x + 150 - 10x > 180

15x - 10x > 180 - 150

5x > 30

x > 30/5

x > 6

So he needs to tutor more than 6 hours in order to make more than $180

4 0

4 years ago