How are basic facts can help you find 10*20*30*40 mentally
1 answer:
When you do the multiplication you can notice that 10, 20, 30, 40 all have 0's at the end.
So that means 10 *20*30*40 = 1*2*3*4*10000 = 24*10000 = 240,000
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Answer:
<h2><u>x = 1</u></h2>
Explanation:
- 5x + 2y = 9
- 5x + 2(7x) = 9
- <u>Remove Parenthesis</u>
-5x + 2 · 7x = 9
- <u>Multiply: 2 · 7 = 14</u>
-5x + 14x = 9
- <u>Add: -5x + 14x = 9x</u>
9x = 9
- <u>Divide Both Sides By 9</u>
9x ÷ 9 = 9 ÷ 9
<h2><u>x = 1</u></h2>
Answer:
bc is 26
Step-by-step explanation:
The annual interest is $242
