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Marysya12 [62]
3 years ago
14

3x – 15y = 12 2x - 10y = 8 What is the ordered pair?

Mathematics
1 answer:
katrin [286]3 years ago
5 0
The answer should be 9,1
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Please help me. Thank you
olya-2409 [2.1K]
Ok cool math problem
8 0
4 years ago
Brianna cut her pancake in half to share with friend. If the pancake's distance from one side of the pancake to other side was 8
Gwar [14]

Answer:

Brianne gets 25.12 inches² of pancake.

Step-by-step explanation:

Assuming the pancake to be a circular shape.

If the pancake's distance from one side of the pancake to other side was 8 inches, then diameter of circle = 8 inches. It means radius = 4 inches.

Brianne cut her pancake in half to share with friend. It means Brianne gets half-circular shape. So we need to find area of half-circle.

Area of half-circle = (1/2)πr² = (1/2) x 3.14 x 4² = 1.57 x 16 = 25.12 inches².

Hence, Brianne gets 25.12 inches² of pancake.

8 0
3 years ago
A mine extracts 2 metric tons of coal in an hour. The mine uses 14 ton of the extracted coal every hour to generate electricity
quester [9]
The expression is 2t−1/4t. The amount of ore is 21 metric tons.
5 0
3 years ago
Margo borrows $900, agreeing to pay it back with 7% annual interest after 9 months. How much interest will she pay? Round your a
Veronika [31]

Answer:

I=\$47.25

Step-by-step explanation:

we know that

The simple interest formula is equal to

I=P(rt)

where

I is the Final Interest Value

P is the amount of money borrowed

r is the rate of interest  

t is Number of Time Periods

in this problem we have

t=9/12\ years\\ P=\$900\\r=0.07

substitute in the formula above

I=900(0.07(9/12))

I=\$47.25

3 0
4 years ago
5.734 rounded to the nearest whole number
stira [4]

Answer:

6

Step-by-step explanation:

anything over 5 you round up.

7 is greater than 5 so you round up to 6

6 0
3 years ago
Read 2 more answers
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