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lana [24]
2 years ago
9

PLS HURRY I WILL MARK BRAINLIEST FOR CORRECT ANSWER!

Mathematics
2 answers:
dedylja [7]2 years ago
8 0

Answer:

it would take 8 hours brainlieast please

Step-by-step explanation:

GarryVolchara [31]2 years ago
4 0

Answer:

It is -3 degrees Celsius per 1 hour

Step-by-step explanation:

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HELPPP PLEASE WILL MARK BRAINLEST IF RIGHT!!!
Sholpan [36]

Answer:

C i think

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
X-5y=33<br> 5x-6y=70<br> solve the system by the addition method
BARSIC [14]

For this case we have the following system of equations:

x-5y = 33\\5x-6y = 70

We multiply the first equation by -5:

-5x + 25y = -165

Thus, we have the equivalent system:

-5x + 25y = -165\\5x-6y = 70

We add the equations:

-5x + 5x + 25y-6y = -165 + 70\\19y = -95\\y = - \frac {95} {19}\\y = -5

We find the value of the variable "x":

x-5 (-5) = 33\\x + 25 = 33\\x = 33-25\\x = 8

Thus, the solution of the system is:

(x, y) :( 8, -5)

Answer:

(x, y) :( 8, -5)

7 0
3 years ago
PLEASE HELP URGENT‼️‼️
Dima020 [189]

Part A

(3x)^2*x^4

(3x)*(3x)*x^4 .... expand out (3x)^2

(3*3)*(x*x*x^4)

9x^6

Answer:  9x^6

============================================

Part B

It appears that Tonya forgot to square the 3 term and had this as her steps

(3x)^2*x^4

3x^2*x^4

3x^(2*4)

3x^8

Which is incorrect as the answer in part A indicates.

Not only is the '3' part wrong, but also the exponent of 8. Instead of multiplying the exponents, she should have added them.

The rule is a^b*a^c = a^(b+c). In this case, a = x, b = 2 and c = 4.

So x^2*x^4 = x^(2+4) = x^6

3 0
2 years ago
Holly has $10.00 . she saw a purse in a catalog that was marked 14.95 plus 5% sales tax . how much more did holley need to buy t
vladimir1956 [14]
For this case we will first look for the total cost of the purse.
 We then have the following rule of three:
 14.95 $ -----> 100%
 x -------------> 105%
 Clearing x we have:
 x = (105/100) * (14.95)
 x = 15.6975 $
 The amount needed to buy the purse is:
 15.6975 - 10 = 5.6975 $
 Answer:
 
holley needs 5.6975 $ to buy the purse
6 0
3 years ago
X&lt;7, x=6<br> True or false<br><br> Help please
slamgirl [31]

Answer:

true

Step-by-step explanation:

if we say x is less than 7 and x is equal to 6 it makes sense that 6 is less than 7

4 0
2 years ago
Read 2 more answers
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