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Naya [18.7K]
2 years ago
14

How many miles were ran?

Mathematics
2 answers:
Verdich [7]2 years ago
5 0

Answer:

ok 4 ways

Step-by-step explanation:

1.add 5+4=9

if not

2.4-5=-1

if not

3. 4x5=20

if still not then

4. 4/5=0.8

hope that helps

Artyom0805 [142]2 years ago
4 0

Answer:

twelve and a half

Step-by-step explanation:

2 1/2 + 3 1/2 + 1  1/2 + 4 +2 = 12 1/2

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What is the solution of this system of linear equations?
creativ13 [48]

Answer: D

Step-by-step explanation:

Consider the first equation. Subtract 3x from both sides.

y−3x=−2

Consider the second equation. Subtract x from both sides.

y−2−x=0

Add 2 to both sides. Anything plus zero gives itself.

y−x=2

To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.

y−3x=−2,y−x=2

Choose one of the equations and solve it for y by isolating y on the left hand side of the equal sign.

y−3x=−2

Add 3x to both sides of the equation.

y=3x−2

Substitute 3x−2 for y in the other equation, y−x=2.

3x−2−x=2

Add 3x to −x.

2x−2=2

Add 2 to both sides of the equation.

2x=4

Divide both sides by 2.

x=2

Substitute 2 for x in y=3x−2. Because the resulting equation contains only one variable, you can solve for y directly.

y=3×2−2

Multiply 3 times 2.

y=6−2

Add −2 to 6.

y=4

The system is now solved.

y=4,x=2

6 0
2 years ago
Read 2 more answers
I need please ASAP SOMEBODY I'll appreciate it
Setler [38]
It depends on the weather but ill go with the second one. U dont have to take my advice tho.
8 0
3 years ago
If sin 115 degrees≈ 0.91 and cos 115 degrees = -0.42, then sin -115 = ____ and cos -115 degrees =_____
Kisachek [45]

Answer:

sin -115 = -0.91, cos -115 = -0.42

Step-by-step explanation:

7 0
3 years ago
5 (3y — 13) = бу – 2<br> PLEAse help <br> Need those 2
____ [38]

Answer:

y = 7

Step-by-step explanation:

5(3y - 13) = 6y - 2

5*3y + 5*-13 = 6y - 2

15y - 65 = 6y - 2

15y - 6y = 65 - 2

9y = 63

y = 63/9

y = 7

Check:

5((3*7)-13) = 6*7 - 2

5(21-13) = 42 - 2

5*8 = 40

6 0
3 years ago
A racecar travels 225 miles per hour. How far will it drive in 6 1/2 hours?
saul85 [17]

Answer:

1462.5

Step-by-step explanation

225 mph means of course 225 miles per hour

225 x 6 is 1350 and then you have to do 225/2 which is 112.5 to find what half of 225 is then you add 1350+112.5 to get 1462.5

8 0
2 years ago
Read 2 more answers
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