Elimination method 3x + -3 =6 3x + 2y = 16

A student earned a grade 80% on a math test that had 20 problems. How many problems on this test did the student answer correctl

prohojiy [21]

Answer:

16

Step-by-step explanation:

5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80

8 0

3 years ago

Solve each equation. 1. 25 - 3x = 40 2. } (x – 10) = -4

nordsb [41]

Step-by-step explanation:

For no 1

25 - 3x = 40 

- 3x = 40 - 25 

- 3x = 15 

 - x = 15 / 3

Therefore x = - 5 

Now for no. 2

1/3 ( x - 10) = - 4 

( x - 10 ) = - 12 

x = - 12 + 10

Therefore x = - 2 

Hope it will help :)

6 0

3 years ago

Read 2 more answers

I don't know what to do I'm very confused

finlep [7]

Answer:

x = 33.8°

Step-by-step explanation:

The resulting diagram we have is a right triangle. To find x, apply trigonometric function.

Reference angle = x

Opposite = 116

Adjacent = 173

Apply TOA:

Tan x = Opp/Adj

$tan (x) = \frac{116}{173}$

$x = tan^{-1}(\frac{116}{173})$

x = 33.8° (nearest tenth)

7 0

3 years ago

Combine the like terms to make a simpler expression: 5n+6+(-7n) plz hurry

azamat

-2n + 6 is the answer to this question

4 0

3 years ago

Read 2 more answers

!!I'M BEING TIMED ANSWER QUICKLY!! What is the y-intercept of the quadratic function f(x) = (x – 6)(x – 2)? (0,–6) (0,12) (–8,0)

-BARSIC- [3]

The answer is (0,12) as the y-int

3 0

3 years ago

Elimination method 3x + -3 =63x + 2y = 16​

Elimination method 3x + -3 =63x + 2y = 16