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Ierofanga [76]
3 years ago
15

Which equations show direct variation between x and y? Choose all answers that are correct. a 3x=7 b y=4.2/x c y/x=6 d y=0.5x +

9
Mathematics
1 answer:
anastassius [24]3 years ago
3 0

a).  No.  Variation in 'y' has no effect on 'x'.

b).  No.  Variation in 'x' has exactly the opposite effect on 'y'.

c).  Yes.  Variation in 'x' causes 'y' to vary 6 times as much in the same direction.

d).  No.  Doubling 'x' does not double 'y'.


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What is equivalent to 8 + 18a - 2 + 6a
Gekata [30.6K]

Answer: 24a + 6


Step-by-step explanation: 8 + 18a - 2 + 6a

8 - 2 =6

18a + 6a =24a

6 + 24a or 24a + 6


8 0
4 years ago
Eric brought a canoe for $333.75. The sales tax was 5.25%
alexandr1967 [171]
Eric bought a canoe for $333.75 and the sales tax was 5.25%.

If you are trying to calculate the sales tax amount, you just convert the percentage into a decimal, and then multiply it by the price.

5.25% = 0.0525

0.0525 * 333.75 =  <span>17.521875

Therefore, the sales tax amount is approximately $17.52.

If you are trying to find the total price of Eric's purchase, you would just add the sales tax to the price of the canoe.

17.52 + 333.75 = $351.27

The total cost of Eric's purchase was approximately $351.27.

</span>
7 0
3 years ago
An air force introductory course in electronics uses a personalized system of instruction whereby each student views a videotape
lys-0071 [83]

Answer:

See explaination

Step-by-step explanation:

We can define standard deviation in statistics as a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean of the set, while a high standard deviation indicates that the values are spread out over a wider range.

See attachment for the step by step solution

8 0
3 years ago
What inequality is shown
VMariaS [17]

Answer:

Y ≤ X + 6

Step-by-step explanation:

Not sure if this is correct

3 0
3 years ago
Read 2 more answers
What is the total probability of ending up with 3 blue marbles out of 7 marbles from the bag?
vova2212 [387]
To find the probability simply divide the number of blue marbles by the total:

SO, 3 / 7 = 0.42857 
p = 0.429
3 0
3 years ago
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