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3 years ago

a fan has 5 equally spaced blades. what is the least number of degrees that can rotate the fan onto self?

Mathematics

2 answers:

Greeley [361]3 years ago

5 0

72 degree's
Hope this helps!

zheka24 [161]3 years ago

4 0

If I understand your question correctly, then I believe your answer is 72 degrees, because 360 divided by 5 equals 72.

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2/3(6b-12) Please answer

Dmitriy789 [7]

Answer:

4b - 8

Step-by-step explanation:

2/3(6b - 12)

2/3 x 6 = 12/3 = 4

2/3 x 12 = 24/3 = 8

4b - 8

7 0

3 years ago

PLZ HELP I WILL GIVE BRAINLIEST

Kipish [7]

Answer:

the third one

Step-by-step explanation:

bc like there are 2 boxes of 1 and 5 boxes of 1/6 so thats already 2 and 5/6 which applies to all of them. then there is 1 box of 1 and 2 boxes of 1/3 so thats 1 and 1/3 which applies to all of them also but when you make them have the same denominator you get 2 and 5/6 + 1 and 4/6 which deletes the second one. When you add you should get the same denominator so that deletes the first one so then you simplify that and the fraction should still be equal to the unsimplified fraction so you should get 4 and 1/2 if that makes sense

8 0

3 years ago

1/5x-2/3y=30 when y=15

dolphi86 [110]

Answer:

Step-by-step explanation:

Step 1: Set y to 15 and solve

$\frac{1}{5}x - \frac{2}{3}*15=30$

$\frac{1}{5}x-10=30$

Add 10 to both sides

$\frac{1}{5}x-10+10=30+10$

$\frac{1}{5}x=40$

Multiply both sides by 5

$\frac{1}{5}x*\frac{5}{1}=40*\frac{5}{1}$

$x=200$

Answer: $x=200$

5 0

3 years ago

5. What is the probability that a number picked from the set {-4,-3,-2,-1,0,1,2,3,4,5) will be a

tatiyna

Answer:

70%.

Step-by-step explanation:

Rearrange the inequality to isolate $x$ . Start by subtracting $5$ from both sides of the inequality:

$2\,x + 5 - 5 > 1 - 5$ ,

$2\, x > -4$ .

Divide both sides by $2$ . (Keep in mind that if the multiplier or divisor is smaller than zero, it will flip the inequality sign.)

$x > -2$ .

There are ten numbers in this set. Only seven of them will satisfy this inequality. Note that the " $>$ " symbol means strictly greater than (while " $\ge$ " means greater than or equal to.) As a result, $x = -2$ will not count as a solution.

Assume that the number is picked randomly.

$\begin{aligned}&\text{Probability of Success} \cr = & \dfrac{\text{Number of Choices that lead to Success}}{\text{Number of all Choices}} \cr =& \dfrac{7}{10} \cr = &0.7 \cr =& 70\% \end{aligned}$ .