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lara [203]
3 years ago
12

Can u guys help me solve for x 12 and 2x-4

Mathematics
2 answers:
Elis [28]3 years ago
7 0

Answer:

20

Step-by-step explanation:

2(12) - 4.  24 - 4= 20

oksian1 [2.3K]3 years ago
7 0

Answer:

x = 8

Step-by-step explanation:

12 = 2x - 4

16 = 2x

8 = x

Check by plugging in:

12 = 2(8) - 4

12 = 16 -4

12 = 12

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Solve. Use models to help you.
oksian1 [2.3K]

Answer:

3.38

Step-by-step explanation:

x + y + z = 16.9

x = 2y

y = z

y=y

2y (x) + y(y) + y(z) = 16.0

5y = 16.9

y = 3.38

4 0
3 years ago
How do you Evaluate?
slavikrds [6]
How do you evaluate: To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
3 0
3 years ago
Alonso is buying a new phone for $ 870
Lubov Fominskaja [6]

Answer:

A

Step-by-step explanation:

1. Get 15% of 870:

   First, get 10 percent of 870, which is 87, then half that, which is 43.5

   Get the 87 and add the 43.5 on it, to get the full 15%, you end up with $130.5, which is the monthly payment.

(Only problem is that im pretty sure you put an extra 0, because if you just wrote 87 dollar's then you would've got 13.05, the actual answer, but if you add an extra 0 then you end up with 130$, just to let you know.)

7 0
3 years ago
1. There are 150 students in the 9th grade class. They are 9th having a talent show to raise money
9966 [12]

Answer:

100 more tickets are needed to reach the goal of 2000

Step-by-step explanation:

2000-500

1500

1500/15

100

6 0
3 years ago
1. WILL GIVE BRAINLIST TO BEST ANSWER
Varvara68 [4.7K]

Answer:

90/100

Step-by-step explanation:

if you look at the graph on the bottom part it tells you the study time if you line it the left side which says the test score. so if they studied for 80 mins they are expected to have the score of between 85 and 90.

4 0
2 years ago
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