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julia-pushkina [17]
3 years ago
5

Please answer asap!!!

Mathematics
1 answer:
Scilla [17]3 years ago
8 0

Answer:

z = 66

Step-by-step explanation:

RS = z

QT = z - 33

Based on the midsegment theorem, QT = ½(RS)

Plug in the values

z - 33 = ½(z)

Multiply both sides by 2

2(z - 33) = z

2z - 66 = z

Add 66 to both sides

2z = z + 66

Subtract z from both sides

2z - z = 66

z = 66

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Nastasia [14]

Answer:

a) 100/15 = 6.6667 = 6  2/3

b) C = T( 6 2/3)

       = T (6 + 2/3)

     C  = 1T x 6  2/3

          = 6 2/3 T

We can show T as time at end of equation or start of brackets

8 0
3 years ago
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Use the expression shown below.<br> 1 = (4 x 4 x 4 x 4 x 4)<br> What is the value of the expression.
jeka57 [31]

Answer:

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Step-by-step explanation:

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3 years ago
Find all solutions of the given system of equations (If the system is infinite many solution, express your answer in terms of x)
lisov135 [29]

Answer:

(a) The system of the equations \left \{ {2x-3y\:=3} \atop {4x-6y\:=3}} \right. has no solution.

(b) The system of the equations \left \{ {4x-6y\:=10} \atop {16x-24y\:=40}} \right. has many solutions y=\frac{2x}{3}-\frac{5}{3}

Step-by-step explanation:

(a) To find the solutions of the following system of equations \left \{ {2x-3y\:=3} \atop {4x-6y\:=3}} \right. you must:

Multiply 2x-3y=3 by 2:

\begin{bmatrix}4x-6y=6\\ 4x-6y=3\end{bmatrix}

Subtract the equations

4x-6y=3\\-\\4x-6y=6\\------\\0=-3

0 = -3 is false, therefore the system of the equations has no solution.

(b) To find the solutions of the system \left \{ {4x-6y\:=10} \atop {16x-24y\:=40}} \right. you must:

Isolate x for 4x-6y=10

x=\frac{5+3y}{2}

Substitute x=\frac{5+3y}{2} into the second equation

16\cdot \frac{5+3y}{2}-24y=40\\8\left(3y+5\right)-24y=40\\24y+40-24y=40\\40=40

The system has many solutions.

Isolate y for 4x-6y=10

y=\frac{2x}{3}-\frac{5}{3}

3 0
3 years ago
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Ierofanga [76]

Answer:

Is Lionel going to buy a belt to whoop em kids?!?!?

Step-by-step explanation:

6 0
3 years ago
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Clare is paid $90 for 5 hours of work. At this rate, how many seconds does it take for her to earn 25 cent?
Alla [95]
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$0.30÷60sec=$0.005 per sec

$0.25÷$0.005= 50sec to make $0.25

so 50sec is the answer
7 0
3 years ago
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