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Anettt [7]
2 years ago
13

Question 3: On a recent math quiz, 20 of the 32 students who took the

Mathematics
1 answer:
alex41 [277]2 years ago
7 0

Answer:

5 to 8

Step-by-step explanation:

bc u divide the numerator and denominator by 4

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Find the simplest form of each fraction 4-6
kakasveta [241]
If the Fraction is 4/6 then it is 2/3. I got that by dividing both the numerator and the denominator by 2.
7 0
2 years ago
X-30% is 12. What is X?
skad [1K]
If i'm not wrong,i think the answer is:

30%=0.3
X=0.3+12=12.3

5 0
3 years ago
Read 2 more answers
A bale of fabric is 189 metres long. If lengths of 15 metres, 36 metres and 29 metres are cut off, how much fabric is left?.
Xelga [282]

Answer:

109 metres

Step-by-step explanation:

1. Do 15+36+29 which equals 80

2. Do 189-80 and u get 109

Hope this helps :3

5 0
2 years ago
Solve for x in the diagram below
ella [17]

Answer:

20

Step-by-step explanation:

3x + x + 100 = 180 (sum of angles on a straight line)

4x = 180-100

4x=80

divide both sides by 4

x=20

8 0
3 years ago
Find the function value. tan495°
inysia [295]

Answer: -1

Step-by-step explanation:

You want to find an angle that is coterminal to 495. So, subtract 360 degrees until youre in the range of 0-360. I got 495 - 360 = 135°

Tangent is equal to \frac{sin(theta)}{cos(theta)}, we already solved theta which was 135°

This next part is hard to explain to someone who doesnt know their trig circle, idk if you do. The angle 135 is apart of the pi/4 gang. So we know this is going to be some variant of √2/2. Sine of quadrant 1 and 2 is gonna be positive:

sin135=\frac{\sqrt{2} }{2}

Now lets do cosine of 135°, which again is apart of the pi/4 gang because its divisible by 45°. Its in quadrant 2 so the cosine will be negative.

cos135=-\frac{\sqrt{2} }{2}

The final step is to divide them. They are both fractions so you should multiply by the reciprocal.

\frac{\sqrt{2} }{2} *-\frac{2}{\sqrt{2} } =-\frac{2\sqrt{2} }{2\sqrt{2} } =-1

7 0
3 years ago
Read 2 more answers
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