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Alex Ar [27]
3 years ago
10

One of Gemma's 5 friends is going to upgrade to a newer device soon. The average cost of their devices will then increase to $66

3 from the previous $657. How much more expensive than the older one is this newer device?
Mathematics
1 answer:
larisa [96]3 years ago
8 0
Old value of 5 devices = 657
New value of 5 devices = 663

Increment cost of 5 devices 
663 - 657 
6

Therefore the increment for one device
6 / 5
1.2
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snow_tiger [21]

Answer: The number of times a yellow cube will be drawn is 390 times.

Step-by-step explanation: Like the last question with the blue cubes, set up a ratio.

Since it is still 240 times drawn and we need to figure out how many times a yellow cube will be drawn from 1200 times, the top number only changes.

78/240 = x/1200

Multiply 78 and 1200, which is 93,600.

Divide that by 93,600, which is 390.

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3 years ago
What is the square root of 674887473
Hunter-Best [27]
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If y varies jointly as x and the cube of z and y=16 when x=4 and z=2 then y=0.5 when x=-8 and z=-3?
Evgesh-ka [11]

Answer: F (False)

Step-by-step explanation:

 Jointly variation has the following form:

y=kxz

Where k is a constant of propotionality.

Substitute values:

If y=16, x=4 and z=2, then k is:

16=k(4)(2)^{3}\\k=1/2

If x=-8 and z=-3 the the value of y is:

y=(1/2)(-8)(-3)^{3}\\y=-108

Then the answer is FALSE.

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3 years ago
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kotegsom [21]
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5 0
3 years ago
In engineering, equilateral triangles can support the most weight and so are commonly found in the design of bridges and buildin
Dafna1 [17]

Answer:

60°

Step-by-step explanation:

Am equilateral triangle is a triangle that has all its sides and angles equal. Note that an equilateral triangle has 3 sides and angles.

Let the angles be a, b and c

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3a = 180

a = 180/3

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Hence the measure of the angles of an equilateral triangle is 60° for the three angles.

4 0
3 years ago
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