Answer:
Step-by-step explanation:
y is more than half of x could be expressed as follows.
y > x/2
1) Transform the inequality into equation by replacing "<" or ">" with "=":
-2x - 4 > 8
-2x - 4 = 8
2) Simply solve for x:
-2x - 4 = 8
-2x = 8 + 4
-2x = 12
x = -6
3) Now do the following exactly the same: first, look into the symbol that you have replaced (">" or "<"). Put the same symbol into your answer "x = -6":
x > -6
4) Now, look which symbol was in front of "x" in the original inequality (-2x - 4 = 8). If it is "+" (for example, 4x, 0.01x) leave "x > -6". If it is "-" (for example, -3x, -0.04x) change ">" into "<" or change "<" into ">" (put the opposite symbol).
5) You have -2x in the original inequality - then, in "x > -6" change the symbol into "<". So, your answer will be
x < -6 or the option 1.
Hope this helps!
Answer:
I believe it could be 25
Step-by-step explanation:
Eight angle = 90
1. 38 + 27 = 65
2. 90 - 65 = 25
I haven't done angles for a long time, but I hope my memories serves well. Sorry if it may be wrong, but this is what I remember from doing angles in Year 7
So, you have to have your equation in terms of dimes. What you said about what he has: four more nickels than dimes in his pocket. Will help with our equation.
We know what a nickel and dime is worth. A nickel is .05 and a dime is .1
We don't know how many dimes are in his pocket, since we're trying to solve it.
.1x+(4+x).05=1.25;
In the parenthesis, it shows how there are four more nickels. Let's solve it now.
.1x + (4+x).05=1.25
.1x + .2+ .05x = 1.25; Let's add like terms.
.15x + .2 = 1.25; Subtract .2 from both sides.
.15x= 1.05
1.05÷.15= 7 =x
There are 7 dimes in his pocket, let's check our answer.
We now know there are 11 nickels, since there are four more nickels than dimes.
11(.05) +.1(7) = 1.25
.55+ .7 = 1.25
Now that we've tried it, we know there are 7 dimes in his pocket.
Tell me if this helps!
