Answer:
Angle D= 140
Step-by-step explanation:
7x+7x+ 4x+4x+7x+7x= 720
36x=720
x= 20
Answer:
Yes and the answer is 16/5
Step-by-step explanation:
Find the reciprocal of the divisor
Reciprocal of 1/6 : 6/1
Now, multiply it with the dividend
8/15 ÷ 1/6 = 8/15 × 6/1
And after that you get 48/15 but after reducing the fraction, the answer is 16/5. ( In mixed form, 3 1/5 )
I hope this helps and I am a middle school student answering this question.
12) (shaded region) 12x25 =300
( un- shaded region) 6x10=60
300-60=240
240 is the answer for #12
<u>Answer:</u>
<em>The correct answer is 1 1/2</em>
<u>Step-by-step explanation:</u>
<em>First, We need to find out the sum of 2/3 x 3, change 3 into a fraction if you want</em>
<em>3x2=6 and 1x3 is 3, So 2/3 x 3 is 6/3 or 2</em>
<em>Next, divide 3 by 2, change to fractions if needed</em>
<em>Remember keep, change and flip, flip 2/3 to 1/2</em>
<em>Then, you multiply 3/1 and 1/2 3x1=3 1x2=2</em>
<em>Finally divide 3 by 2. 3 ÷ 2 is 1 1/2</em>
<em>I hope this helped!</em>
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3x-6y=2 (label equation 1)
5x+4y=1 (label equation 2)
-6y=-3x+2 (rearranged equation 1)
y=1/2x-1/3 (label equation 3)
substitute equation 3 into equation 2
5x+4(1/2x-1/3)=1
5x+2x-4/3=1
15x+6x-4=3 (multiplied everything by 3)
21x-4=3
+4 +4
21x=7
x= 7/21
x=1/3
sub x=7/21 into equation 3
y= 1/2(1/3) -1/3
y= -1/6
Therefore x=1/3 and y= -1/6
