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2 years ago

The expression 2d gives the grade that a student receives for d correct answers. What is the score for 10 correct answers?

Mathematics

1 answer:

Alex17521 [72]2 years ago

8 0

2 times 10 equals 20

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You are told to you will have to wait 5 hours in a line with a group of other people. Determine it. 1.You know the number of min

gulaghasi [49]

Answer:

$for\ five\ hours = 300\ min$

Step-by-step explanation:

Given:

Waiting time = 5 hours.

We need to find the number of minutes for 5 hours.

Solution:

We know that 60 minutes for each hour, so one hour is equal to 60 minutes.

For one hour = $60\ minutes$

For five hours = $5\times 60$

$for\ five\ hours = 300\ min$

Therefore, you will have to wait 300 minutes in a line.

3 0

2 years ago

The length of a living room is 12 feet and its width is 1012 feet. The length of the room is being expanded by x feet. Choose an

Ivanshal [37]

Answer:

Option C. 10.5(12 + x) square feet

Option E. (126 + 10.5x) square feet

Step-by-step explanation:

step 1

Find the area of the original living room

we know that

The area of the original living room is equal to

$A=LW$

we have

$L=12\ ft\\W=10\frac{1}{2}\ ft=10.5\ ft$

substitute

$A=(12)(10.5)=126\ ft^2$

step 2

Find the new area of the living room

The length of the room is being expanded by x feet

we have

$L=(12+x)\ ft\\W=10.5\ ft$

The new area is

$A=10.5(12+x)\ ft^2$

The expanded form of the expression is

Apply distributive property

$A=10.5(12)+10.5(x)\\A=(126+10.5x)\ ft^2$

6 0

3 years ago

What is the value of f(3) in the function below? F(x) = 2x

Citrus2011 [14]

Answer:

substitute x as 3

Step-by-step explanation:

f (3)=2x

=2×3

7 0

3 years ago

Read 2 more answers

Thanks in advance for your help, the question is;

valkas [14]

Answer:

8, 9

Step-by-step explanation:

1/2x + 2(x + 1) = 22

1/2x + 2x + 2 = 22

1/2x + 2x = 20

5/2x = 20

5x = 40

x = 8

8, 9

4 + 18 = 22

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2 years ago

Read 2 more answers

Help for a nice juicy brainiest

wlad13 [49]

3 cuz it is proportional to the condition of the pneumonoultramicroscopicsilicovolcanoconiosis

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2 years ago