1.<span>Write down the fractions.
2.</span><span>Find a common denominator.
3.</span><span>Multiply both numbers on the first fraction by the bottom number of the second fraction.</span><span>
4.</span>Multiply both numbers on the second fraction by the bottom number of the first fraction.
5.Line both fractions up side by side with their new numbers.<span>
6.</span>Add together the numerators of the two fractions.<span>
7.</span><span>Take the common denominator that you figured out in Step 2 and add it on the bottom of your new numerator.
8.</span>Put the new numerator on top and the new denominator on bottom.
9.<span>Simplify and reduce.</span>
Mary: x yrs old
Mike: 3x yrs old
In four yrs:
Mary: x+4 yrs old
Mike: 3x+4 yrs old
As the text of task:
3x+4=2(x+4)
3x+4=2x+8
3x-2x=8-4
x=4
Mary is 4 yrs old
Answer:
6.8%
Step-by-step explanation:
the question has no information about class size (no. of student in class)
assume no. of student is infinite
P(3brown out of 6) = 6C3 * P(brown)^3 * P(not brown)^3
= 20 * 0.004913 * 0.695789
= 0.06837
Answer:
44
Step-by-step explanation:
3x-5+x+1=180 [linear pair]
4x-4=180
4x=176
x=44
Answer:
Step-by-step explanation:
hello :
2x+3y=6
1) x = 0 : 2(0)+3y=6 means 3y=6 so : y=6/3 = 2
2) y = 0 : 2x+3(0)=6 means 2x=6 so : y=6/2 = 3
3) x = - 3 : 2(-3)+3y=6 means 3y=12 so : y=12/3 = 4
