<em>429 cm²</em>
- Step-by-step explanation:
<em>A(blue) =</em>
<em>= 2×6cm×10cm + 2×6cm×8cm + 8cm×10cm + (8cm×10cm - 5cm×4cm)</em>
<em>= 120cm² + 96cm² + 80cm² + 60cm²</em>
<em>= 356 cm²</em>
<em>A(green) =</em>
<em>= 4cm×5cm + 2×5cm×5cm/2 + 4cm×7cm</em>
<em>= 20cm² + 25cm² + 28cm²</em>
<em>= 73 cm²</em>
<em>A(total) =</em>
<em>= A(blue) + A(green)</em>
<em>= 356 cm² + 73 cm²</em>
<em>= 429 cm²</em>
Answer:
b = 21 +8a
Step-by-step explanation:
We can dive both sides by 2 to get:
-8a + b = 21
Then bring at 8a to both sides to get
b = 21+8a
1/2 I’m just doing this answer because I need to finish setting up the account so it’s wrong my bad
63,889 rounded to the nearest hundred is 63,900
First you would divide 300 by 5, you would add 2 and 3 together, to get 60. Then multiply 2 and 3 by 60 and you would get 120 and 180. Add those two together and you will get 300. So Ms. Johnson folded 120 report cards while Ms. Smith folded 180 report cards.
