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Gnesinka [82]
3 years ago
7

Help please I don't really understand what to do here, so if somebody could find the answer that'd be great!

Mathematics
1 answer:
Marizza181 [45]3 years ago
7 0

Answer:

See below.

Step-by-step explanation:

4.2 is 4 and 2 tenths.

4 is 40 tenths.

That means that 4.2 is 40 tenths plus 2 tenths, or 42 tenths.

First line: 4.2 / 6 = 42 tenths / 6

In the second line, we divide 42 tenths by 6. Since 42 divided by 6 = 7, then 42 tenths divided by 6 equals 7 tenths.

Second line: 4.2 / 6 = 7 tenths

In the third line, we write 7 tenths as a number. 7 tenths is the same as 0.7.

Third line: 4.2 / 6 = 0.7

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☺WILL MARK BRAINLIEST IF YOU GIVE THE RIGHT ANSWER☺
RoseWind [281]
Simple.
Plug in what you known into the equation.
150 = 6e^2.
Divide 150 by 6 to isolate the variable.
150/6 = e^2
25 = e^2
take the square root of 25
5 = e

Hope this helps!
4 0
3 years ago
A long-distance phone call between two cities costs ​$4.42 for 17 minutes. What is the rate in cents per​ minute?
Novosadov [1.4K]

Answer:

The rate is r = \frac{442}{17} = 26

Step-by-step explanation:

The rate, in cents per minute, is given by the multiplication of the how much you paid by 100 and divided by the number of minutes.

The multiplication by 100 happens because the cost is in dollars, and each dollar has 100 cents. So

r = \frac{100*4.42}{17} = \frac{442}{17} = 26

6 0
4 years ago
Question: 3 of 20
zysi [14]

Answer:

Sean earns $7.5 in each hour.

Step-by-step explanation:

Given:

Money earned by Sean = $300

Number of hours worked in a day = 8 hrs

Number of days of work  in a week = 5

We need to find Money earned in each hour.

First we will find Total hours work in a week.

Total hours work in a week is equal to Number of hours worked in a day multiplied by number of days work in a week.

Framing in equation form we get;

Total hours worked in a week = 8\times5 = 40\ hrs

Now we will find money earned for each hour.

Money earned each hour will be calculated by Dividing Total Money earned in a week by Total number of hours worked in a week.

Framing in equation form we get;

Money earned each hour = \frac{300}{40} = \$7.5

Hence Sean earns $7.5 in each hour.

8 0
3 years ago
Understanding this proof for the proposition "For all integers a, gcd(9a+4, 2a+1) = 1.
olganol [36]

First line because 4(2a+1)=8a+4 and 9a+4-(8a+4)= a


Second line because a times 2 =2a and 2a+1-2a=1


<span>Although the second equality is more or less obvious since 2a+1 leaves a remainder of 1 when divided by a.</span>

3 0
4 years ago
Given the following functions: f(x) = x2 – 5 and g(x) = x - 3.<br> Find f(g(x))
Amiraneli [1.4K]

Answer:

f(g)x))= x^2 -6x +4

Step-by-step explanation:

first, plug in g(x) into f(x): f(g)x)) =(x-3)^2 -5

then, you simplify the (x-3)^2 into (x-3)(x-3): f(g)x))= (x-3)(x-3) -5

when you distribute the two (x-3) you end up with: f(g)x))= x^2 -6x +9 -5

finally, you combine like terms and subtract 5 from 9 and your final answer is : f(g)x))= x^2 -6x +4

note: x^2 is x squared or exponent of 2

4 0
3 years ago
Read 2 more answers
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