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nikitadnepr [17]
3 years ago
11

PLEASE ANSWER:

Mathematics
2 answers:
trapecia [35]3 years ago
6 0
For number one, i believe it would be 6x + 15Y-12. You just multiply 3 by everything i. the parentheses. I hope this helps :)
34kurt3 years ago
4 0

Answer:

1. 6x+15y-12

2. 25

3. 5(11x-5)

Step-by-step explanation:

1. We have the expression 3(2x+5y-4) we have to distribute number 3 to simplify the expression:

3(2x+5y-4)=\\3.(2x)+3.(5y)-3.(4)=\\=6x+15y-12

Then the correct answer is the first choice: 6x+15y-12

2. We have to find the value of the expression when c=4, we have

f(c)=4c + 3c -2c + 5

Then when c=4:

f(4)=4.(4) + 3.(4) -2.(4)+ 5\\f(4)=16+12-8+5\\f(4)=28-3\\f(4)=25

Then the correct answer is the first choice: 25

3. We have to factor the expression 55x-25,

we can see that (5).11=55 and (5).5=25, then the common factor in this expression is number 5,

55x-25=\\(5).11x-(5).5=\\=5(11x-5)

Then the correct answer is the first choice: 5(11x-5)

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Find the values of X and Y. Write your answers in simplest form.<br> X=__<br> Y=__
uranmaximum [27]
Hope this helps!
Anymore doubt, ask away

8 0
3 years ago
A car valued at £18000 at the start of 2017, depreciated in value by 5% each year for 3 years. How much did it lose in value ove
Anna11 [10]

<u>Answer:</u>

The amount lost over the 3 years s 2567.25£  

<u>Explanation:</u>

$\mathrm{F}=\mathrm{I} \times\left(1-\left(\frac{r}{100}\right)\right)^{\mathrm{n}}$

where F = final value after n years

I = initial value of the car in 2017 = £18000 (given)

Since the value is depreciated 5% every year for 3 years,

r = percentage rate of depreciation = 5% (given)

n = 3 years

Substituting these values in formula, we get

$\mathrm{F}=18000 \times\left(1-\frac{5}{100}\right)^{3}$

= $18000 \times\left(\frac{95}{100}\right)^{3}$

 = 15432.75£ which is the value of the car after 3 years

Finally 18000-15432.75 = 2567.25£ is the amount lost over this period.  

6 0
3 years ago
Solve 4\5x-4\10=2\20
Soloha48 [4]
4/5x - 4/10 = 2/20...multiply everything by common denominator 20
16x - 8 = 2
16x = 2 + 8
16x = 10
x = 10/16 which reduces to 5/8 <=
5 0
3 years ago
(x+3)(x+2) can some one help with this one please (factoring trinomials)
Licemer1 [7]
Make it a trinomial by using the FOIL method.
First
Inside
Outside
Last

5 0
3 years ago
What is the recipricol of 0
Ber [7]

Answer: 1/0

Step-by-step explanation: the reciprocal of a number is simply found by switching the place of the numerator and denominator. so the reciprocal of 0 or 0/1 is 1/0

5 0
3 years ago
Read 2 more answers
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