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marysya [2.9K]
2 years ago
9

Y = 2x+3 2x + 5y = 3 SOLVE using substitution please show work !

Mathematics
2 answers:
igor_vitrenko [27]2 years ago
8 0
2x + 5 (2x+3) =3
2x + 10x + 15 = 3
12x + 15=3
12x=-12
x=-1
y=1
netineya [11]2 years ago
6 0

Answer:

x= -1

Step-by-step explanation:

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Order of operation with Integers
vovikov84 [41]

Answer:

8

Step-by-step explanation:

<em>we have to follow PEDMAS.</em>

<u>what we have to do in each operation:</u>

Parenthesis ~  100 + 8 to the second power

Exponents ~ 10 to the 2nd power, 8 to the 2nd power, 2 to the 3rd power

Multiplication  ~  none

Division ~  10 to the 2nd power - (100 + 8 to the second power) divided by 2 to the 3rd power

Addition ~ 100 + 8 to the 2nd power

Subtraction ~ 10 to the 2nd power - (100+8 to the second power)

<u>doing the work:</u>

we start with P: but in what we have to do in the Parenthesis, there is an exponent and addition. we do the exponent first. 8 to the second power is 64. now we can add. 100 + 64 = 164.

E: we did the 2nd exponent, but we need the other 2 for later. 10 to the 2nd power is 100, and 2 to the 3rd power is 8.

we can skip M because there isn't any multiplication to do.

D: we have to do 10 to the 2nd power - (100 + 8 to the second power) first. 100-164= 64. now we can devide. 64 devided by 8 = 8

A: we already did the addition in the parenthesis part.

S: we already did the addition in the parenthesis part.

5 0
3 years ago
A rectangular prism has dimensions of 3x, 5x, and 6x. Write an expression for the total volume of the prism.
Evgesh-ka [11]
90because u multiple 3x in 5x equal to 15 then multiple 6x in 15x together equal to 90 prism
3 0
3 years ago
Read 2 more answers
Find the Inverse of
Mekhanik [1.2K]

Answer:

y = 1/2x + 3

O f(x)= 1/2x+3

Step-by-step explanation:

f(x) = 2x - 6

y = 2x - 6

x = 2y - 6

2y = x + 6

y = (x + 6)/2

y = 1/2x + 3

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3 years ago
The local farmer's market sells a 4-pound basket of apples which contains 10
Galina-37 [17]

Answer:

I believe its $1.40

Step-by-step explanation:

8 0
2 years ago
Please someone solve this, this is my third time reposting this question so yea please be quick
egoroff_w [7]

Answer:

Step-by-step explanation:

to calculate mean add all the entries in a week ,then divide by 7(the number of days)

i give you hint

mean for week 1=(52+65+...   +60)/7

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2 years ago
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