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mixer [17]
4 years ago
5

3. A test has 20 questions worth 100 points total. The test consists of True/False questions worth 4 points each and multiple ch

oice questions worth 8 points each
C. Solve the system to determine how many questions of each type there are on the test. You may use any method, but you must show your work.
Mathematics
2 answers:
Aleks [24]4 years ago
7 0

Answer:


x+y=20

4x+8y=100

x=-2y+25

x=-y+20

-2y+25=-y+20

-y=-5

y=5

x=15

There are 15 true/false questions and 5 multiple choice questions



Cerrena [4.2K]4 years ago
3 0
X+y=20
4x+8y=100
x=-2y+25
x=-y+20
-2y+25=-y+20
-y=-5
y=5
x=15
There are 15 true/false questions and 5 multiple choice questions

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Solve the problem 3g+7g+8=-10+g
Vinil7 [7]
First simplify like terms (things with the same letter):

3g + 7g + 8 = -10 + g

10g + 8 = -10 + g

Next we should take g off both sides:

9g + 8 = -10

Next isolate 9g by taking 8 off both sides:

9g = -18

Next divide both sides by 9 to find the value of g:

g = -2
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3 years ago
When using the inspection method, which number would you add to (and subtract from) the constant term of the numerator in this e
olasank [31]
If i were you, i would add one to 7x and fifteen. this gives you x^2+8x+16, a perfect square of x+4.
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3 years ago
Y+4= – 2(x - 1)<br> please answer quick!!!
zlopas [31]

Step-by-step explanation:

y + 4 = -2x + 2

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4 0
4 years ago
Read 2 more answers
Electrical resistance ina wire is directly proportional to its length and inversely proportional to the square of its diameter.
LenaWriter [7]
Initial Conditions:

length=L= 10 cm = (10*10⁻²)m
Diameter=D= 2 cm= (2*10⁻²)m
Radius= r= 0.01m
Area=A= π*r²/2 =1.57*10⁻⁴ m²

Resistance=R= 600 ohm
 
So, from initial conditions we find resistivity(р)
                                       R=рL/A
                                       R*A /L=р
                                      (600)*(1.57*10⁻⁴)/(10*10⁻²)=р
                                       р=0.942 Ω m
<span>As, material remains same so resistivity(p) doesn't change

 </span>Lenght= L1= 15 fm= 15*10⁻¹⁵ m
Diameter= D1 = 5 cm= 5*10⁻² m
Radius= r= 0.025 m
Area= A1= π*r²/2 =9.8125*10⁻⁴ m²
                                               R=р*L1/A1
                                               R=(0.942 )*(15*10⁻¹⁵ )/(9.8125*10⁻⁴)
                                               R=1.44*10⁻¹¹ Ω
3 0
4 years ago
Can someone help me please
ehidna [41]

Answer:

answer A

Step-by-step explanation:

Because

3 0
3 years ago
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