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Alex17521 [72]
3 years ago
11

Draw a diagram for this fraction2 2/3​

Mathematics
1 answer:
LiRa [457]3 years ago
7 0

Answer:

OOO

OOO

OO

Step-by-step explanation:

Where OOO is == 1.

OO is 2/3 of OOO.

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1. Use GRAPHING to solve the systems of equations below. *
Alchen [17]

Answer:

it is A & D

Step-by-step explanation:

5 0
3 years ago
Grant has $75 to spend on gifts for his daughter. He buys dolls for $15 each and toys for $8 each.
deff fn [24]

Answer:

B

Step-by-step explanation:

Your going to want the money to equal less then $75 dollars not  more because if it more than the amount you have you cant buy it.

Hope this helps :3

(feedback helps me! dont be afraid to tell me if im wrong)<3

4 0
4 years ago
Read 2 more answers
To the nearest whole percent, what is the probability that a randomly chosen member of the JV swim team does not wear glasses an
Yuri [45]

Answer: 14%

Step-by-step explanation:

Complete question is provided in the attachment below:

Probability that members of the junior varsity swim team wear glasses = 55%=0.55

Given: P(wear glasses) = 0.55

P(not wear glasses) = 1-0.55 = 0.45

P(member in 10th grade | not wear glasses) = 30%

Using conditional probability formula:

P(B|A)=\dfrac{P(A\text{ and } B)}{P(A)}

\Rightarrow\ 0.30=\dfrac{P(\text{not wear glasses and in 10th grade})}{0.45}\\\\\Rightarrow\ P(\text{not wear glasses and in 10th grade})=0.45\times0.30\\\\0.135=13.5\%\approx14\%

Hence, the probability that a randomly chosen member of the JV swim team does not wear glasses and is in the 10th grade = 14%.

So, the correct option is "14%".

4 0
3 years ago
Solve by elimination:
LenaWriter [7]

Answer: (4, 3)

Step-by-step explanation:

1) Multiply the first equation by 3,and multiply the second equation by -5: 3(2x-5y=-7), -5(5x-3y=11)

2) Simplify: 6x-15y=-21, -25x+15y=-55

3) Add the equations to eliminate y: -19x=-76

4) Divide both sides by -19: \frac{-19x}{19} =\frac{-76}{-19}

5) Simplify: x=4

6) Substitute 4 for x in 2x-5y=-7: (2)(4)-5y=-7

7) Simplify: -5y+8=-7

8) Subtract 8 on both sides of the equation: -5y+8-8=-7-8

9) Divide both sides by -5: \frac{-5y}{-5} =\frac{-15}{-5}

10) Simplify: y=3

11) Write point: (4, 3)

8 0
3 years ago
A closed box is constructed of 4200cm2 of cardboard. The box is a cuboid, with height hcm and square base of side xcm . What is
inysia [295]

Answer:

x is 10\sqrt{7}

Step-by-step explanation:

  • Let x is the side of the base
  • Let h is the height

Given that:

  • The area A = 4200 cm2

<=> 2x^{2} + 4xh = 4200 cm2

<=> 4xh = 4200 - 2x^{2}  

<=> h = (4200 - 2x^{2}  )/4x

  • The volume of the box:

V = x^{2}  h

<=> V = x^{2}  (4200 - 2x^{2}  )/4x

<=> V = (4200x - 2x^{3} )/4

  • To find the maximum volume, we differentiate volume with respect to x:

dV/dx = (4200 - 6x^{2} )/4

Set dV/dx = 0, we have:

4200 - 6x^{2} =0

<=> x^{2}  = 700

<=> x = 10\sqrt{7}

  • We differentiate again

d²V/dx² =  -12x/4

It is negative so the volume is maximum.

So x is 10\sqrt{7}

5 0
3 years ago
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