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vladimir2022 [97]
3 years ago
8

A student claims that the expression “9 times the sum of a number and 13” is translated to the algebraic expression 9n + 13. Is

the student correct? If not, what is the correct expression?
Mathematics
1 answer:
igor_vitrenko [27]3 years ago
8 0

Answer:

The student is not correct. He should use parentheses like this 9(n+13). Without the parentheses, it means nine times n plus 13, but should be the sum of n plus 13 multiplied by 9.

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5.
irina [24]

Answer:

160 m²

384 m²

Step-by-step explanation:

The area of a trapezium is given by :

A = 1/2(a + b)h

h = height ; a and b = lengths

From the diagram :

A = 1/2(12 + 20)10

A = 1/2(32)10

A = 16 * 10

A = 160 m²

2.)

Area of parallelogram = base * height

Base = 24 ; h = 16

A = 24 * 16

A = 384 m²

7 0
3 years ago
One kilogram is approximately equal to 2.21 pounds. Find the number of pounds in 165 kilograms. Round to the nearest tenth of a
Shtirlitz [24]

Answer: 364.7 pounds

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165 x 2.21 = 364.65

Round to the nearest tenth.

364.7 pounds in 165 kilograms.

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3 years ago
The slope of the line going through the points 2,6 and -1,-3
Verizon [17]
Answer: 3
hope that helps!

8 0
3 years ago
A city has a population of 290,000 people. Suppose the population grows by 3%. What will the population be after 11 years?
LiRa [457]
Assuming it grows 3% each year it would be <span>385,700</span>
4 0
3 years ago
Read 2 more answers
What is the sum of -1/2 and 8/6? Please help! I need to pass this test! 15 points!
notsponge [240]

Answer: C) 5/6

Step-by-step explanation:

-1/2= -3/6 + 8/6 is 5/6

3 0
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