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alexgriva [62]
3 years ago
13

On a math test, the highest grade is 38 points higher than the lowest grade. Which of the following expressions represents the a

verage of the two grades?
A... (x+x) / 2
B... (x+(x+38)) / 2
C... x+(x+38) / 2
D... 2(x+(x+38))
Mathematics
2 answers:
Greeley [361]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Alinara [238K]3 years ago
5 0

Answer:

the answer is b I got it right!

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A flute case is shaped like a rectangular prism. The caseis 5inches tall, 3 inches wide, and has a volume of 255 cubic inches
Anna [14]

Answer:

The length of the case is 17 inches.

Step-by-step explanation:

A flute case is shaped like a rectangular prism with dimensions:

  • height = 5 inches;
  • width = 3 inches;
  • length = x inches.

The volume of the case is 255 cubic inches.

Use formula for the volume of the rectangular prism:

\text{Volume}=\text{Width}\times \text{Length}\times \text{Height}

Thus,

255=5\cdot x\cdot 3\\ \\255=15x\\ \\x=\dfrac{255}{15}=17

The length of the case is 17 inches.

7 0
3 years ago
If John is 6 and his brother is 2 times his age how old is his brother
tangare [24]

Answer:

Hey!

Your answer is that John's brother is 12 years old!

Step-by-step explanation:

If in the question it says "2 times" you just multiply the subject by 2

In this case it is 6 x 2 = 12

So his brother is 12 years of age!

HOPE THIS HELPS!!

8 0
3 years ago
Work out the area of this circle. Take pie to be 3.142 and give your answer to 2 decimal places.
yan [13]

Answer:

Work out the area of this circle. Take pie to be 3.142 and give your answer to 2 decimal places.

Step-by-step explanation:

8 0
3 years ago
Pls help me with this pls
lbvjy [14]
Is 4=14 beacause u just solve it and that’s the answer
4 0
2 years ago
Anthony's bedroom and bathroom are both rectangular and have a combined area of 240 square feet. His bathroom has a length of 6
ivolga24 [154]

Answer:

Step-by-step explanation:

240 | Total

6x10=60 square feet | Bathroom

240-60=180

Square foot of 180 is 16.7225

Length of Anthony's bathroom is 16.7225

5 0
3 years ago
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