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ale4655 [162]
3 years ago
5

I REALLY NEED HELP WITH THIS QUESTION

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
4 0

Answer:

d i have done this before

Step-by-step explanation:

rosijanka [135]3 years ago
4 0

Answer:

It is B

Step-by-step explanation:

If im wrong sorry but i got big brain :0

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You are given: Students must take at least 2 courses out of Art, History, and Science. 60% of the students take Art. 80% of the
Eva8 [605]

Answer:

0.10 or 10%

Step-by-step explanation:

Since each student must take at least 2 courses, if no student took all three courses, the sum of the percentages would total 200% (counting each student twice). Therefore, the proportion of students taking all three courses is the difference between the sum of all percentages and 200%:

P(3) = 60\%+80\%+70\%-200\%\\P(3) = 10\%

0.10 or 10% of the students take all 3 courses.

4 0
3 years ago
What is the value of x in the following equation?<br> 4r +6<br> + 3 = -6<br> -6<br> -3
zhuklara [117]

Answer:

x = -6

Step-by-step explanation:

Solve for x:

(4 x + 6)/2 + 3 = -6

Hint: | Put the fractions in (4 x + 6)/2 + 3 over a common denominator.

Put each term in (4 x + 6)/2 + 3 over the common denominator 2: (4 x + 6)/2 + 3 = 6/2 + (4 x + 6)/2:

6/2 + (4 x + 6)/2 = -6

Hint: | Combine 6/2 + (4 x + 6)/2 into a single fraction.

6/2 + (4 x + 6)/2 = ((4 x + 6) + 6)/2:

(4 x + 6 + 6)/2 = -6

Hint: | Add the numbers in 4 x + 6 + 6 together.

Add like terms. 6 + 6 = 12:

(4 x + 12)/2 = -6

Hint: | Multiply both sides by a constant to simplify the equation.

Multiply both sides of (4 x + 12)/2 = -6 by 2:

(2 (4 x + 12))/2 = -6×2

Hint: | Cancel common terms in the numerator and denominator of (2 (4 x + 12))/2.

(2 (4 x + 12))/2 = 2/2×(4 x + 12) = 4 x + 12:

4 x + 12 = -6×2

Hint: | Multiply 2 and -6 together.

2 (-6) = -12:

4 x + 12 = -12

Hint: | Isolate terms with x to the left hand side.

Subtract 12 from both sides:

4 x + (12 - 12) = -12 - 12

Hint: | Look for the difference of two identical terms.

12 - 12 = 0:

4 x = -12 - 12

Hint: | Evaluate -12 - 12.

-12 - 12 = -24:

4 x = -24

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of 4 x = -24 by 4:

(4 x)/4 = (-24)/4

Hint: | Any nonzero number divided by itself is one.

4/4 = 1:

x = (-24)/4

Hint: | Reduce (-24)/4 to lowest terms. Start by finding the GCD of -24 and 4.

The gcd of -24 and 4 is 4, so (-24)/4 = (4 (-6))/(4×1) = 4/4×-6 = -6:

Answer: x = -6

4 0
2 years ago
Please help. Which graph represents a function? I think a.
drek231 [11]

graph B ( the lower one )

for a function to be defined there can only be one value of y for each value of x

graph A has more than 1 value of y for given values of x

for example ( - 1, 4 ) and  ( - 1, - 4 ) thus is not a function

graph B only has 1 value of y for a given value of x thus is a function




4 0
3 years ago
Solve the following quadratic equation for all values of xx in simplest form. 16+2x²=30​
Katarina [22]

Link Provided in other answer is a SCAM !!! Do NOT CLICK ON IT !!!
6 0
3 years ago
Help me please please please please
Sophie [7]
Not sure what the question is, but the equation for this graph would be 2|x-1|+1
the equation is usually a|x-h|+k
a is the slope (rise over run) and this goes up (rise) 2 every time it moves 1 left (run) so the slope is 2/1 which is just 2
then the x is kept the same and h is how much left or right the origin is, this one is 1 to the right so it's minus 1 (left would be plus one)
the k is how much up or down the origin is
this one is 1 up, so +1
3 0
3 years ago
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