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madam [21]
3 years ago
13

7 2/3 - 5 5/8how to solve

Mathematics
2 answers:
Sergeu [11.5K]3 years ago
8 0
First change to fractions   7 2/3 = 23/3      5 5/8 = 45/8

now you have 23/3 - 45/8     find least common denominator...24

23/3 =  184/24 -        45/8 =135/24 now your prob is 184/24 - 135/24

49/24   then change back  2  1/24
Lyrx [107]3 years ago
6 0
Change the numbers into improper fractions then subtract
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leonid [27]

Since angles 3 and 2 are congruent, angle 2 is 112 degrees. Also, because angles 2 and 1 are vertical angles, they'll have the same measurement.

So m<1=112 degrees

4 0
3 years ago
A rectangular prism has a length of 5 meters, a width of 634 meters, and a height of 312 meters.
olga_2 [115]
The answer is 405,076 meters.
3 0
3 years ago
Need help finding the x, y, and z. please and thank you
Reptile [31]

The first step in any problem is to look at what you are given. When solving systems of linear equations, it is often helpful to eliminate one or more of the variables by adding or subtracting a multiple of one equation with a multiple of another. It is convenient when at least one of the multipliers is 1.

Here, we can cancel the y-terms in the 2nd and 3rd equations simply by adding them together. This gives

... (5x +y -4z) +(-3x -y +5z) = (41) +(-45)

... 2x +z = -4 . . . . simplified

Likewise, we can add 3 times the second equation to the first to cancel y in that sum.

... 3(5x +y -4z) +(2x -3y +z) = 3(41) + (-1)

...15x +3y -12z +2x -3y +z = 123 -1

...17x -11z = 122 . . . . simplified

Now that we have 2 equations in x and z, we can go through the same process. We observe that the coefficient of z is +1 in the first equation and -11 in the second. The means we can cancel the z terms by adding 11 times the first equation to the second:

... 11(2x +z) +(17x -11z) = 11(-4) +122

...22x +17x = 78 . . . . . . simplify a little bit

... x = 78/39 = 2 . . . . . . divide by 39

From above, we find

... z = -4 -2x = -4 -2·2 = -8

... y = 41 -5x +4z = 41-5(2) +4(-8) = 41 -42 = -1

The solution is (x, y, z) = (2, -1, -8).

_____

The method of elimination used here will vary with the system of equations. If you want to employ a consistent method, you can use Cramer's Rule, Gaussian elimination, or matrix methods. Since you apparently don't mind help from technology, learning to do this on your graphing calculator can also be a good idea.

4 0
2 years ago
Determine the intercepts of the line. -6x+3y=-7
Anit [1.1K]
To find x-intercept substitute 0 for y and solve for x
-6x + 3(0) = -7
Simplify
-6x=-<span>7
</span>Divide each side by -6
-6x ÷ -6 = -7 ÷ -6
x = 7/6
X = 7/6 is your x intercept
-------------------------------------
To find y-intercept substitute 0 for x and solve for y
<span>-6(0)+3y=-7
Simplify
</span><span>3y</span>=-<span><span>7
</span></span><span>Divide each side by 3
3y </span>÷ 3 = -7 ÷ 3
<span>y = -7/3
Y = -7/3 is your y-intercept

</span>
3 0
3 years ago
Can somebody answer these please!!<br> Ill Mark Brainliest^^
Levart [38]

Answer:

1. -5

2. 0.5

3. -4

4. 8

5. 9

6. -3

7. 5

8. 0.6

9. -7

10. 10

11. -5

12. 4

13. -9

14. 4

15. -6

Step-by-step explanation:

It's just the number that doesn't have a x to the side on it

3 0
3 years ago
Read 2 more answers
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