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3 years ago

I need help, please and thank you!

Mathematics

2 answers:

Phoenix [80]3 years ago

6 0

The answer is c, when he combined 0.96 and 0.75 they are not like terms. The 0.75 has a y attached to it

victus00 [196]3 years ago

6 0

Answer:

The answer is C.

Step-by-step explanation:

Everything that Dominic was doing was correct up until step number 4. He added 1.5 and 0.75y. He shouldn't have done that because those numbers do not have like terms. He should have combined 1.5 and -0.96 which would give him 0.54. Leaving us with the actual answer being 0.54 + 0.75y.

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Solving Exponential and Logarithmic Equation In exercise,solve for x or t.See example 5 and 6.

Virty [35]

Answer:

$x=\frac{6e^3}{e^3-1}$

Step-by-step explanation:

$ln x - ln(x - 6) = 3$

Apply natural log property

ln mn=ln m + ln(n), ln(m/n)=ln(m)-ln(n)

$ln x - ln(x - 6) = 3$

$ln(\frac{x}{x-6} )=3$

All natural log has base 'e'

$\frac{x}{x-6} =e^3$

cross multiply

$x=e^3(x-6)$

$x=e^3x-6e^3$

add 6e^3 on both sides and -x on both sides

$6e^3=e^3x-x$

$6e^3=x(e^3-1)$

Divide e^3-1 on both sides

$x=\frac{6e^3}{e^3-1}$

5 0

4 years ago

Three workers can do a job in 28 hours. How many more workers are needed to do this job in 12 hours?

Tomtit [17]

So, 3 workers are to 28 hours and x is to 12 hours. That can be written as

3     28
---     --
x       12
Multiply them to get 94 over 12. 84 divided by 12 is 7.

3 0

3 years ago

Read 2 more answers

Rearrange the formula to make b the subject a = √((b) /4 )-2

seropon [69]

Answer:

A=12

Step-by-step explanation:

So if your equation is carrat over b you have to find 4 and -2 first then find your substitute

6 0

3 years ago

7) 15:5 +6.5<br> I do not no how to do this