Answer:
<h2>£8.77</h2>
Step-by-step explanation:
100 - 16 = 84
84 / 100 = 0.84
10.44 x 0.84
=8.77
I learned this trick months ago.
Step-by-step explanation:
ratios are kinda like fractions
5/15 could be used as 2/6 if you criss cross it 5x6=30 and 15x2=30
Here are a list of fractions (just turn them into ratios) that would work
1/3 1:3
2/6 2:6
3/9 3:9
4/12 4:12
5/15 5:15
6/18 6:18
7/21 7:21
8/24 8:24
9/27 9:27
10/30 10:30
V+4 3/4=5 2/5
v+4.75=5.4
v=0.65. Hope it help!
Answer:
B
Step-by-step explanation:
10x + 7 - 7x < 40
3x + 7 < 40
3x < 33
x < 11
Answer:
x = 1
y = 0
Step-by-step explanation:
You did a great job solving one of the equations for a single variable. You solved for x. But what your paper shows is that...it jind of looks like you were going to substitute the 2y+1 into y. BUT you need to substitute it into x.
-4x + 3y = -4
x = 2y + 1
Fill in 2y + 1 into x in the first equation.
-4(2y+1) + 3y = -4
Now you have an equation in one variable. There are only y's in this equation. Next, distribute.
-8y - 4 + 3y = -4
combine like terms.
-5y - 4 = -4
add 4 to both sides.
-5y = 0
divide by -5
y = 0
It's okay that it cam out to be zero. Its fine!
y=0
Put it back in one of the original equations to find x.
x = 2y + 1
x = 2(0) + 1
x = 1
The solution is
x=1
y=0
You can write this as an ordered pair.
(1,0)