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3 years ago

Which is a factor of 15xy − 45x − 6y + 18?

Mathematics

2 answers:

Nadya [2.5K]3 years ago

8 0

The factor of <span>15xy − 45x − 6y + 18 is 3(y-3)(5x-2).</span>

AleksandrR [38]3 years ago

6 0

15xy−45x−6y+18

3(y−3)(5x−2)

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3 L of water of density 1 gram per centimetre cubed is added to 12litres of alcohol of density of 0.8 gram per centimetre cubed,

Natasha2012 [34]

Answer:

84%

Step-by-step explanation:

each liter is 1000 cubic centimetre, so you have a total density of 3000, but instead think of 3 liters being 100% density and think of alcohol as 80% density, there are 4 times at much 80% than 100% liquid.

with 3 liters of alcohol, 3 liters of water is now 90% density or 0.9 gram per centimetre. add another 3 liters and it is 2/3, so the grams per centimetre would be 8.66667 or 8 2/3's

if you add another 3 liters, THEN it is 85%

add 12 liters in total and the final answer 84%

4 0

2 years ago

Divide 28 cans of soda into two groups so the ratio is 3 to 4<br>to

Brums [2.3K]

28 = 3x+4x
x = 4

3x = 12
4x = 16
12:16 = 3:4

6 0

3 years ago

Given f(x)=4x+5 and g(x)= x^2+x; find (f∘g)(-5)<br> Please show all steps thank you

Greeley [361]

Answer:

$(f\circ g)(-5)=85$

Step-by-step explanation:

We are given:

$\displaystyle f(x)=4x+5\text{ and } g(x)=x^2+x$

And we want to find:

$(f\circ g)(-5)$

This is equivalent to:

$\displaystyle =f(g(-5))$

So, we will evaluate g(-5) first, which yields:

$\displaystyle g(-5)=(-5)^2+(-5)=25-5=20$

So:

$=f(g(-5))=f(20)$

Then:

$\displaystyle f(20)=4(20)+5=80+5=85$

Therefore:

$(f\circ g)(-5)=85$

6 0

3 years ago

On a factory floor, 65 out of every 140 toy robots is defective. What percent of the toy robots are defective? Round your answer

tester [92]

Answer:

65/140

as a percentage is 46.43

hundredth rounding

46.4

Step-by-step explanation:

8 0

2 years ago

The relationship between time and distance remaining on a 3 mile walk for someone walking at a rate of 2miles per hour

Maksim231197 [3]

Answer:

$Remaining\ distance=3-2t\ \ \ \ \ \ \ \ \ (where\ t\ is\ time)$

Step-by-step explanation:

$Total\ distance=3\ mile\\\\speed=2\ miles/hour\\\\Time=t\\\\In\ t\ hours\ distance\ covered=velocity\times time=2\times t=2t\\\\Remaining\ distance=total\ distance-distance\ covered\\\\Remaining\ distance=3-2t$

6 0

3 years ago