<span>4(r+1.9)-9r=12.2
</span><span>4r + 7.6 -9r = 12.2
-5r = 12.2 - 7.6
-5r = 4.6
r = 4.6/-5
r = - 0.92</span>
Answer:
1109
Step-by-step explanation:
The first term is -27, and the common difference is 16.
The nth term is:
a = a₁ + d (n − 1)
a = -27 + 16 (n − 1)
a = -27 + 16n − 16
a = 16n − 43
The 72nd term is:
a = 16(72) − 43
a = 1109
Answer:
33
Step-by-step explanation:
I say 33, because of the 11 times table
Answer:
13x-2
Step-by-step explanation:
1) distribute the negative sign to each term in the second parentheses
(7x-10)-(-6x-8)
7x-10+6x+8
2) combine like terms
7x+6x= 13x
-10+8=-2
13x-2
Hope this helps!
Answer: 31.5 square units
Explanation:
The area of the rectangle is length*width = 7*3 = 21 square units
The area of the triangle is 0.5*base*height = 0.5*7*3 = 10.5 square units
The combined area is 21+10.5 = 31.5 square units
