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madam [21]
3 years ago
7

Each True/ False question is worth 3 points and each multiple choice question is worth 5 points. If there is an 86- point test a

nd there are 20 total questions, how many true/ false questions and how many multiple choice questions are on the test?
Mathematics
1 answer:
Leto [7]3 years ago
5 0

Answer:

13

Step-by-step explanation:

x=true/false questions y = multiple choice

3x+5x=86

x+y=20

x=7, y=13

13 multiple choice questions

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Line I is shown in the coordinate plane.<br> Is the point (16, 20) on line l ?
Dmitriy789 [7]
Yes, this like has a slope of 4,5, so if you multiply both the x and y by 4 you get 16,20
8 0
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Eiko is wearing a magic ring that increases the power of her healing spell by 30%. Without the ring, her
Butoxors [25]

Answer:

The correct answers are B and C.

Step-by-step explanation:

3/10 + 1 represents an extra 30%, plus 100%. The 100% accounts for the original power of the spell. The expression can be simplified as 1.3H, or 130% of H. 130% of H can also be represented as 130/100 H.

6 0
3 years ago
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Calculate the frequency of a wave with a speed of 130 m/s and a wavelength of 2.5
denis23 [38]

Answer:

  52 Hz

Step-by-step explanation:

We can divide the speed by the wavelength to find the number of waves propagated in one second:

  (130 m/s)/(2.5 m/wave) = 52 waves/s

The SI unit of frequency is the Hertz, equal to one cycle per second.

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<em>Additional comment</em>

The use of the unit Hz to signify frequency was adopted in 1933, but did not replace the unit "cycles per second" (CPS) until a number of years later.

3 0
3 years ago
How is the function shown below related to y=x? Graph the function by translating the parent function y=x+5
AveGali [126]

Consider x=0.

The output of the function y=x is y=0.

The output of the function y=x+5 is y=0+5, or y=5.

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7 0
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the simple interest paid on a loan over a period of two and a half years is birr 375. if the rate of interest was 8% per annum,
Reil [10]

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4678.5

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46.875 * 100 = 4687.5

8 0
3 years ago
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