Answer:
x= 149, second problem 900°
Step-by-step explanation:
in quadrilateral all sides must add to 360 so do 360- given angles
inside angles add to 900° on a heptagon
Answer:
86
Step-by-step explanation:
t = ten's digit u= one's digit
t + u = 14 t = 2u - 4
In the first equation substitute for t 2u - 4 that we find in the second equation above.
t + u = 14
2u - 4 + u = 14 Combine the u's
3u - 4 = 14 Now add 14 to both sides
3u = 18 Divide both sides by 3
u = 6. We found the unit's digit, now we will find the ten's unit by plugging in 6 for u in the first equation above.
t + u = 14
t + 6 = 14 Subtract 6 from both sides
t = 8
So, your answer is 86.
The spent 2,750 on the magazine adds.
2,750+2750=(2750x4)+(2750x2)=22,000
Answer:
D) 3.28
Step-by-step explanation:
820/x=100/2.5
(820/x)*x=(100/2.5)*x - we multiply both sides of the equation by x
820=40*x - we divide both sides of the equation by (40) to get x
820/40=x
20.5=x
x=20.5
now we have:
2.5% of 820=20.5
Answer:
(f o g)(3) = -19
Step-by-step explanation:
(f o g)(3) is f(g(3)). You need to first find g(3).
g(x) = x + 1
g(3) = 3 + 1
g(3) = 4
Next, you need to find f(g(3)). Since, g(3) = 4, you are finding f(4).
f(x) = -6x + 5
f(4) = -6(4) + 5
f(4) = -24 + 5
f(4) = -19
(f o g)(3) = -19
