1. 3x=18; you divide each side by 3 because you want to get the x by itself. When you do that, you get x=6.
2. Y+4=11; you subtract each side by 4 because you want to get the y by itself so you do the opposite of that is in front of the +4 (-4). When you do that, you get y=7.
3. W/5=6; you multiply each side by 5 because to get rid of the 5, you multiply(or do the opposite(inverse)) to get the w by itself. That would leave you with w=30.
4. 135=p+21; you subtract each side by 21 to get 114=p.
5. 2m-3=13; the easiest thing to do is to add 3 to both sides to get 2m=16. After that divide both sides by 2 to get m=8.
6. 3/4+a=2 1/4; if it's easier, turn the fractions into a decimal. Subtract both sides by 3/4 to get 1 1/2. a=1 1/2
Answer:
0
Step-by-step explanation:
0 is an integer.
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Answer:
Time, t = 3.125 s
Step-by-step explanation:
The height attained by the ball after it was kicked is given by as a function of time t as :
It is required to find the time until which the ball hits the ground. At that point, h(t) = 0
So,
So, 3.125 seconds before the ball hit the ground.
Answer:
x = 25
Step-by-step explanation:
The volume (V) of the triangular prism is calculated as
V = Al ( A is the area of the triangular face and l is its length )
A = bh = 0.5 × 5 × 8 = 20 cm² , then
V = 20 × 20 = 400 cm³
The volume of the cuboid is calculated as
V = lbh = 3.2 × 5 × x = 16x
Given V = 400 cm³ , then
16x = 400 ( divide both sides by 16 )
x = 25
Answer:
x = 5 ; y = - 3
Step-by-step explanation:
2x - 13 = y
2x - y =13 --------------------(i)
-3x + 2y = -21 ----------------(ii)
(i)*2 ===> 4x - 2y = 26
(ii) ===> <u> -3x + 2y = -21</u>
add ==> x = 5
When we are adding, -2y and 2y gives 0 or cancelled. 4x and -3x gives 1x; 26 and -21 --> different sign so subtract and put the bigger number sign. so it gives 5.
substitute x = 5 in equ (i)
2*5 - y = 13
10 - y = 13
-y = 13 -10
y = 3
y = -3