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zysi [14]
3 years ago
13

Find the difference of (t-8)-(t-15)

Mathematics
1 answer:
Vsevolod [243]3 years ago
5 0
I think u should try (t-23) because -8 minus - 15 is = to 23 so yeah add the t in front of it
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A department store buys 100 shirts at a cost of $800 and sells them at a selling price of $10 each. Find t
Pachacha [2.7K]

Answer:

125%

Step-by-step explanation:

they sold the shirtsto the store at 8 $. they now sell for 10, so 10/8 is 125%

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3 years ago
In the xy -coordinate plane, the coordinates of point s are (-2,-6), and coordinates of point T are (18,9). Point Q lies on line
ira [324]

Answer:

(6,0)

Step-by-step explanation:

The coordinates of the points dividing the line segment in ratio m:n can be calculated as:

(\frac{mx_{2}+nx_{1}}{m+n} ,\frac{my_{2}+ny_{1}}{m+n} )

Here x1, y1 are the coordinates of first point S (-2, -6) and x2, y2 are the coordinates of second point T(18, 9).

In this case m will be 2 and n will be 3 as the ratio is 2:3

Using all these values we can find the coordinates of point Q

( \frac{2(18)+3(-2)}{2+3},\frac{2(9)+3(-6)}{2+3} )\\\\ = (\frac{30}{5} ,\frac{0}{5} )\\\\ =(6,0)

Thus, the coordinates of point Q which divides the line segment ST in ratio of 2:3 are (6,0)

5 0
3 years ago
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Leni [432]

Answer:

C. 13

Step-by-step explanation:

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3 years ago
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3 years ago
How many solutions does this system of linear equations have? Explain. 3y + 6x = 12 8x + 4y = 16
Vilka [71]

Answer:

first equation : 3y + 6×=12

second equation : 4y + 8x = 16

Step-by-step explanation:

first equation

3y + 6× = 12

now take the common ,

3( y + 2x ) = 12

so, y + 2x = 4

second equation

4y + 8x = 16

4 ( y + 2x ) = 16

so, y + 2x = 4

two lines with same equation have infinitely many solution . these two equations are the same so there are infinitely many solution .

3 0
3 years ago
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