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lidiya [134]
2 years ago
11

Which phrase represents 3y+9​

Mathematics
2 answers:
sweet [91]2 years ago
8 0

Answer:

9 more than 3 times y; first option

Step-by-step explanation:

3y is 3 times y, and +9 represents 9 more.

Alex2 years ago
4 0

Answer:

A. 9 more than 3 times y

Step-by-step explanation:

3 and y are next to each so it is multiplying then the 9 is being added after word. Therefore, 9 more than 3 times y. If it said 9+3y the answer would be the same since we have to follow the PEMDAS order. Parenthesis, exponents, multiplication and division, addition and subtraction.

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5x-2y=-6 3x-4y = -26​
snow_tiger [21]

For this case we must solve the following system of equations:

5x-2y = -6\\3x-4y = -26

We multiply the first equation by -2:

-10x + 4y = 12

We add the new equation with the second one:

-10x + 3x + 4y-4y = 12-26

We have different signs subtracted and the sign of the major is placed:

-7x = -14\\x = \frac {-14} {- 7}\\x = 2

Now we find the value of the variable "y":

3x-4y = -26\\3 (2) -4y = -26\\6-4y = -26\\-4y = -26-6\\-4y = -32\\y = \frac {-32} {- 4}\\y = 8

Thus, the solution of the system is given by:

(x, y) :( 2,8)

Answer:

(x, y) :( 2,8)

3 0
3 years ago
How many packages of pencils should Phillip buy?
AfilCa [17]
C.........................
3 0
3 years ago
Help anyone can help me do the question 4,I will mark brainlest.​
nasty-shy [4]

Answer:

Hello,

Step-by-step explanation:

A=(1,2)\\B=(0,-1)\\\overrightarrow{AB}=((0,-1)-(1,2)=(-1,-3)\ ||\overrightarrow{AB}||^2=1+9=10\\\overrightarrow{BC}=((3,-2)-(0,-1)=(3,-1)\ ||\overrightarrow{BC}||^2=9+1=10\\\\Triangle\ is\ isosceles.\\\\\overrightarrow{AB}.\overrightarrow{BC}=(-1,-3)*\left[\begin{array}{c}3\\-1\end{array}\right] =-3+3=0\\\\Triangle \ is\ right.\\\\

8 0
2 years ago
Read 2 more answers
Answer this ASAP I really need it
Ede4ka [16]
Given the expression
-2 + 6.45z - 6 + (-3.25z)

First, classify like terms, constant with constant, coefficient-variable with coefficient-variable
-2 + 6.45z - 6 + (-3.25z)
= 6.45z + (-3.25z) - 2 - 6

Second, combining like terms
= 6.45z + (-3.25z) - 2 - 6
= 6.45z - 3.25z - 8
= 3.20z - 8

The simplest form is 3.20 - 8
8 0
3 years ago
What is the volume of a sphere with the diameter of 16 inches using 3.14 for pi
VMariaS [17]

Answer:

V≈2144.66in³

Step-by-step explanation:

5 0
3 years ago
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