The browser used for posting questions on this site is rubbish. It is quite useless for mathematics since it strips out most symbols so that we cannot tell what the question is meant to be.
18 x 35 = 630 630 / 30 = 21 So the answer is 21.
7/9 x 5/2 = 35/18 or 1 and 17/18
18 x 35 = 630
7+5x=(7/5)x multiply by 5 35 + 25x = 7x subtract 25x 35 = -18x divide by 18 x = (-35 / 18) now check 7+5(-35/18)=(7/5)(-35/18) 7-(175/18)=(7/5)(-35/18) (cast out 5 from the 5 and 35) (126/18)-(175/18)=(7/1)(-7/18) (-49/18)=(-49/18) and yes it does.◄
x/35 = 7 x = 7 * 35 x = 245
18 x 35 = 630 630 / 30 = 21 So the answer is 21.
18 billion divided by 35 million = 0.5142857142857142
7/9 x 5/2 = 35/18 or 1 and 17/18
18 x 35 = 630
7+5x=(7/5)x multiply by 5 35 + 25x = 7x subtract 25x 35 = -18x divide by 18 x = (-35 / 18) now check 7+5(-35/18)=(7/5)(-35/18) 7-(175/18)=(7/5)(-35/18) (cast out 5 from the 5 and 35) (126/18)-(175/18)=(7/1)(-7/18) (-49/18)=(-49/18) and yes it does.◄
x/35 = 7 x = 7 * 35 x = 245
x2-17x-18 divided by x+1Factorising the quadratic expression gives you:(x-18)(x+1) which when divided by x+1 leaves you with: x-18
18
0.5143
18
It is: 53/35 = 1 with a remainder of 18
18/35 ÷ 17/28 = 72/85