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Leona [35]
3 years ago
11

I need help asap ! i’ll mark brainly .

Mathematics
2 answers:
Soloha48 [4]3 years ago
4 0

Answer/Step-by-step explanation:

The first choice would be correct!

The solution for y-8 < = -2 is y < -2

And the solution for the first equation is the same solution.

skelet666 [1.2K]3 years ago
3 0

Answer:

y - 8 + 2 ≤ -2 + 2  =  y - 8 ≤ -2

Step-by-step explanation:

y - 8 ≤ -2 + 8

Looking at the first couple options we see that the inequality signs aren't the same as the one shown in our given inequality; ≤. Since we didn't do any dividing or multiplying with negative numbers, there should be no reason to change the inequality sign.

This leaves us with the last two equations. However, with the third option, they add 2 to only one side and 8 to one side. It's a known rule that whatever we do to one side of an equation or inequality we must do to the other side. The equation y - 8 + 2 ≤ -2 + 8 doesn't abide by this rule. However, the inequality: y - 8 + 2 ≤ -2 + 2 does.

Both inequalities are equivalent.

y - 8 + 2 ≤ -2 + 2  =  y - 8 ≤ -2

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Please help ;-; <br> Solve for the simultaneous equation….<br> 5x+y=17<br> X+y=3
Svetach [21]

<u>Given Equation</u>:-

  • 5x+y=17 . . . . . . . . 1
  • x+y=3 . . . . . . . . . . 2

<u>To find</u> :

  • value of x
  • value of y

<u>Solution</u> :

<u>Let's start with equation 2</u>:-

x + y = 3

y = 3 - x

Put the value of y in Equation 1

  • 5x+y=17
  • 5x + (3 - x) = 17
  • 5x - x + 3 = 17
  • 4x + 3 = 17
  • 4x = 17 - 3
  • 4x = 14
  • x = 14/4
  • x = 7/2
  • x = <em>3.5</em>

<u>Now Let's find value of y</u><u>:</u>

put the value of x in equation 2:

y = 3 - x

y = 3 - 3.5

y = <em>0.5</em>

4 0
2 years ago
If f(2) =20 and f(3) =10<br>F(4) = ,f(5)=
Arada [10]
F(4)=0 and F(5)= -10
5 0
3 years ago
I WILL MARK BRAINLIEST
poizon [28]

Answer:

A.

Step-by-step explanation:

3 0
3 years ago
please help solve this problem the - is a negative sign. (2b+-7)+5(b+-3)
enyata [817]

Answer:


Step-by-step explanation:

(2b+-7)+5(b+-3)

Multiply 5 throughout the second parentheses

(2b-7)+(5b-15)

Add 2b and 5b

7b-7-15

Subtract -7 and -15

7b-22

3 0
2 years ago
Jo's mother, Anne, is four times as old as Jo. In four years time, Anne will be three times as old as Jo. How old is Jo? (this i
pentagon [3]

Answer:

Jo's age = x = 8 years

Step-by-step explanation:

Let

Jo's age = x

Jo's mother, Anne's age = 4x

In four years time, Anne will be three times as old as Jo.

Jo's age =3( x + 4)

Jo's mother, Anne's age = 4x + 4

How old is Jo?

Equate Jo's age and his mother's age

3(x + 4) = 4x + 4

3x + 12 = 4x + 4

3x - 4x = 4 - 12

-x = - 8

Divide both sides by -1

x = 8

Therefore,

Jo's age = x = 8 years

8 0
3 years ago
Read 2 more answers
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