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olasank [31]
3 years ago
7

Evaluate. Please help me!!!

Mathematics
1 answer:
Mademuasel [1]3 years ago
5 0

Answer:

670

Step-by-step explanation:

(3*1+2)+(3*2+2)+........(3*20+2)=670

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How do you write 9 7/9 as a decimal?
Sav [38]

Answer:

9.777777778

Step-by-step explanation:

7/9 written as a decimal is 0.777777778 when we add this on to the whole number 9, we get 9.777777778.

hope this helps!

3 0
3 years ago
Two similar prisms have heights 4 cm and 10 cm. What is the ratio of their surface areas?
Alex73 [517]
H 1 : H 2 = 4 : 10
H 1 = 2/5 H 2
and also for the base: L 1 = 2/5 L 2 and W 1 = 2/5 L 2
 A 1 = 2 L 1 x W 1 + 2 L 1 x H 1 + 2 W 1 x H 1
A 2 = 2 L 2 x W 2 + 2 L 2 x H 2 + 2 W 2 x H 2
A 1 / A 2 = 4/25 *( 2 L 2 x W 2 + 2 L 2 x H 2 + 2 W 2 H 2 ) /
                 / ( 2 L 2 x W 2 + 2 L 2 x H 2 + 2 W 2 x H  2 ) =
= 4/5
A 1 : A 2 = 4 : 25
Answer:  B ) 4 : 25
3 0
3 years ago
Read 2 more answers
Sam has 2,450 in his bank account he spends 20 dollars each week on gas money. after how many weeks will Sam's account balance f
zubka84 [21]
I think 73 because:

First I did '1,000 + x = 2,450'
Then I got 'x = 1450'
But then 20 can't go into 1450
So I just add another 10 to 1450 an got 1460
1460/20 = 73!
Hope this helps an is correct!!!
6 0
3 years ago
Help with sons homework
Artemon [7]

Answer:

5. Read below

6 . A

Step-by-step explanation:

6. Meaning 8 x 6 = 48

for 5 add the people that ate pasta and chicken.

Subtract that total from 270.

5 0
3 years ago
What is the median of the following numbers: 9, 10, 4, 6, 3, 7, 8, 2, 5. 54 8 7 6
qwelly [4]
The median of the numbers would be 7.5
8 0
3 years ago
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