Answer:
1) 9
2) 7
3) -10
4) -54
5) -64
Step-by-step explanation:
It’s just basic substitution
Hope this helps!
I think it is 33% because 20/60 as a decimal is .33 and as percent would be 33%
X=-1 and y=3
To solve this, because y is equal to 2x+5, you can substitute 2x+5 into the bottom equation for y.
You now have 3x - (2x + 5) =-6
This can be solved like a normal equation. Multiply each term in the parenthesis by -1.
3x - 2x - 5 = -6
Subtract 2x from 3x
x - 5 = -6
Add 5 to both sides
x=-1
Now you can solve for y by plugging -1 in for x in either equation. Im going to use the top one.
y= 2(-1)+5
y= -2+5
y=3
You can check your answer by plugging in the values for x and y into both equations and making sure both sides equal each other.
F(g)=sqrt(7x+b)
f(g(4))=sqrt(7*4+b)=6
sqrt(28+b)=6
28+b=36
b=36-28
b=8 which is A
Answer:
x is greater than or equal to 8.75 or 8 3/4
Step-by-step explanation:
So we first write the inequality 3 + 1.2c "is greater than or equal to sign" 13.5. Then we subtract 3, then divide both sides by 1.2 to isolate c. We get x "is greater than or equal to" 8.75.
