When adding fractions that have the same denominator (the number on the bottom), you simply add the numerators together and keep the denominator the same. So 2/9 + 3/9 = (2+3)/9 = 5/9
20% is equivalent to 20/100 or 0.2. You find 20% of 100 by multiplying 100 x .2 = 20
The answer is (3 x 3 x 3) + (1 x 1 x 1) = 27 + 1 = 28
When multiplying fractions, multiply both the numerators and denominators. So, 5/8 x 2/6 = (5x2)/(8x6) = 10/48 which is 5/24 when simplified.
30 - (-4) is the same as 30 + 4 = 34
When adding or subtracting equations with variables, you keep the variable as a unit. Think of the variable xy as "apples", then the equation becomes 8 apples - 3 apples = 5 apples (or 5xy)
5 goes into 13 2 times with a remainder of 3.
When subtracting fractions that have the same denominator (the number on the bottom), you simply subtract the numerators and keep the denominator the same. So 9/11 - 5/11 = (9-5)/11 = 4/11
180÷20=9
𝑥+𝑦=𝑁→𝑥=6→6+𝑦=𝑁→𝑦=𝑁–6→3𝑦=3(𝑁–6)
𝐴. 7/9=0.77
𝐵. 2/3=0.66
𝐶. 3/4=0.75
𝐷. 2/5=0.4
3𝑥−5=8.5→3𝑥=8.5+5=13.5→𝑥=13.5/3=4.5
Then; 5𝑥+3=5(4.5)+3=22.5+3=25.5
First, draw an isosceles triangle. Remember that the two sides of the triangle are equal.
Let put a for the legs. Then:
a = 6 ⇒ area of the triangle is:
1/2(6×6)=36/2=18 𝑐𝑚2
