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GenaCL600 [577]
3 years ago
15

Help me pls help please???

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
7 0

Answer:

3 – x

Step-by-step explanation:

A number in this case we will as x. And 3 less than x is -

3 – x

a_sh-v [17]3 years ago
4 0

x - 3

Hope i helped ya!

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Talia earns 85 cents for cans she recycles.If she gets a nickel for each can,how many cans does she recycle?
Over [174]

Answer:

Step-by-step explanation

Hi there,

We know she gets 1 nickel for every can, and 1 nickel is just 5 cents. So we first get this set up:

\frac{1 \ Nickel}{can} =\frac{5 \ cents}{can}      Now, we also know she gets 85 cents for a certain amount of cans, x:

\frac{85 \ cents}{x \ can}     Now, we can just use the proportionality we designed above, but flip it so <em>cans</em> cancel out:

x \ cans = 85 cents * \frac{1 can}{5 cents} = 17 cans  

Thus, Talia recycles 17 cans.

<u><em>If you liked this solution, please hit Thanks or give a Rating!</em></u>

8 0
3 years ago
What is(14x2-27x+9)/(7x-3)?
Ann [662]

Answer:

 (-7x - 3) • (2x + 3)

Step-by-step explanation:

7 0
3 years ago
Explain your answer <br> 49= X/7
Ahat [919]

Refer to attachment for your answer

7 0
2 years ago
What two numbers multiply to -40 and add to 10
andreev551 [17]

Answer:

5 + sqrt(65), 5 - sqrt(65)

Step-by-step explanation:

x + y = 10

x×y = -40

so, two equations with 2 variables. using one equation to express one variable by the second. and then using the second equation to solve and calculate the second variable. and then by knowing the second variable we calculate the first.

=> x = 10 - y

=> (10-y)×y = -40

=> -1×(10-y)×y = 40

=> (y-10)×y = 40

=> y^2 - 10×y - 40 = 0

remember the solution for a quadratic equation

a×x^2 + b×x + c

is

x = (-b ± sqrt(b^2 - 4×a×c)/(2×a)

in our case

a = 1

b = -10

c = -40

and we used "y".

so,

y = (--10 ± sqrt((-10)^2 - 4×1×(-40))/(2×1) =

= (10 ± sqrt(100 + 160))/2 = (10 ± sqrt(260))/2 =

= (10 ± sqrt (4×65))/2 = 10/2 ± 2×sqrt(65)/2 =

= 5 ± sqrt(65)

=>

for y = 5 + sqrt(65), x = 10 - 5 - sqrt(65) = 5 - sqrt(65)

for y = 5 - sqrt(65), x = 10 - 5 + sqrt(65) = 5 + sqrt(65)

6 0
2 years ago
A group of 12 company employees wants to buy a $100 gift card for the boss's birthday. Six employees each contributed $7.75. How
stepladder [879]

Note: 6 employees means half of the employees contributed $7.75 each.


6 x $7.75 = $46.50.


To find how much money remains to be collected, subtract $46.50 from $100.


So, $100 - $46.50 = $53.50 is the answer.


5 0
3 years ago
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