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12345 [234]
2 years ago
15

100 POINTS !! WILL MARK BRAINLIEST!! PLS HURRY

Mathematics
1 answer:
lesya [120]2 years ago
4 0

Answer:

38/7

Step-by-step explanation:

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Write the following coordinates where they belong in the line segments below. (5 1/2, -4 1/4) _______ (3 3/4, -1 1/4)
Ket [755]

ANSWER

(4 \frac{5}{8} , -  2\frac{3}{4} )

EXPLANATION

The end points of the segment are:

(5 \frac{1}{2} ,-4 \frac{1}{4} )

and

(3 \frac{3}{4} ,-1 \frac{1}{4} )

The box represents the midpoint of the two points.

Using the midpoint formula;

( \frac{x_1+x_2}{2} , \frac{y_1+y_2}{2} )

We substitute the end points of the line segment to obtain,

( \frac{5 \frac{1}{2} +3 \frac{3}{4} }{2} , \frac{ - 4 \frac{1}{?} + - 1 \frac{1}{4} }{2} )

This simplifies to:

( \frac{37}{8} , -  \frac{11}{4} )

We convert back to mixed numbers to get,

(4 \frac{5}{8} , -  2\frac{3}{4} )

The correct choice is B

3 0
3 years ago
5x−y=3<br> −5x+2y=4<br> Which ordered pair satisfies the system of equations shown above?
ale4655 [162]

Answer:

(2, 7)

Step-by-step explanation:

We can solve this system of equations by using elimination.

In this case, we can eliminate x by adding the two equations:

5x+(-5x)-y+2y=3+4\\5x-5x+y=7\\y=7

Then, substitute 7 for y to solve for x:

5x-y=3\\5x-7=3\\\text{Add 7 to both sides}\\5x=10\\\text{Divide both sides by 5}\\x=2

Substitute both these values into the system to check our answer:

5x-y=3\\5(2)-7=3\\10-7=3\\3=3\rightarrow \text{correct!}

-5x+2y=4\\-5(2)+2(7)=4\\-10+14=4\\4=4\rightarrow \text{correct!}

Therefore the ordered pair is:

(x, y)=(2, 7)

6 0
2 years ago
A certain shampoo is available in two sizes. A 12.6-ounce bottle costs $2.37. A 25.3-ounce bottle costs $5.24.
neonofarm [45]

Answer:

The 12.6 oz bottle

Step-by-step explanation:

0.19/oz for the 12.6 oz

0.21/oz for the 25.3 oz

4 0
3 years ago
The product of a number and 7 decreased by 2
Mashcka [7]

Answer:

(x× 7) -2

Step-by-step explanation:

(x× 7) -2

product of # = x

and 7 means to multiply

decreased by two means -2

3 0
4 years ago
Read 2 more answers
Simplify the expression <br> 3(9+4x−5)<br> 3(9+4x−5)<br> . 
Alik [6]
12x+12 because you do the distribution property and this is how 3*9=27 3*4x=12x 3*-5=-15 27-15 = 12 so 12x+12 would be the answer it is really simple.
7 0
3 years ago
Read 2 more answers
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