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melamori03 [73]
3 years ago
10

Please help vvvvvvvvvvv

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0

Answer:

17

Step-by-step explanation:

since you are subtracting a negative number it reverses, so you actually ADD the two together

so, 12 1/2 + 4 1/2

add the whole numbers first;

12+4=16

then fractions:

1/2 + 1/2= 1

then all together;

16+1=17!

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What is the range of f(x) = 3X?
grigory [225]

Answer:

(-9.5,1,7)

Step-by-step explanation:

7 0
3 years ago
Solve 6x+57=2x+315 . A. x=−911 B. x=911 C. x=119 D. x=−119
liubo4ka [24]

Explanation:

Remember: we have to isolate the variable x, so that means we have to get x by itself.

Step 1:

Let’s look at our equation:

6x+57=2x+315

Let’s subtract 2x from both sides of the equation, since our goal is to isolate the variable. You could also subtract 6x from both sides, but you would end up with a negative number, and I find it easier to deal with positive numbers.

6x(-2x)+57=2x(-2x)+315\\4x+57=315

Step 2:

Now, let’s subtract 57 from both sides of our equation.

4x+57(-57)=315(-57)\\4x=258

Step 3:

Since we have to isolate x, let’s divide both sides of the equation by 4.

4x/4=x\\258/4=64.5

Our final answer: x = 64.5

None of your options is the correct answer. Notify your teacher, tutor, etc. since there none of the options are correct.

4 0
3 years ago
Is it =,<, or > for each one?​
Diano4ka-milaya [45]

1. > Greater than

2. > Greater than

3. > Greater than

4. < Less than

7 0
2 years ago
10.(a) Nadira has some T-shirts that are either white or blue or green.
Elenna [48]

Answer:

120 shirts

Step-by-step explanation:

Let the number of blue shirt be= 4x

Let the number of white shirt be= 5x

Let the number of green shirt be= x.

Number of blue shirt is 48, x=12

Total shirts=10x=10*12=120

5 0
2 years ago
Read 2 more answers
Can someone help me please
gregori [183]

Answer:

y = -16

x = 2

Step-by-step explanation:

-×2/ -x - 5y = 78 ➡ 2x + 10y = -156 (whole equation multiplied with -2)

then add up two equations

2x + 10y = -156

-2x + 2y = -38 (2x will be eliminated)

12y = -192

y = -16

now you can find x using the value of y

if

2x + 10y = -156 ➡ 2x -160 = -156 ➡ 2x = -156 + 160 ➡ 2x = 4

6 0
3 years ago
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