Cory’s average score after 8 tests is 91%. If he gets a 78% on his 9th test what will his new average be?

Answers

Answer 1

Answer: 8*91+78/9 would be an 89.55555 or just 89.56% if you have to round it would be 90%

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Help please !! It is due tomorrow

Answers

Just substitute..

y=3x for X

y=3(-1)

y=3(0)

y=3(1)

y=3(2)

y=3(3)

then what you get for y just plot it

How to delete brainly accout

Answers

Log in to your account on Brainly Web (Brainly.com)
Click on your avatar in the top right corner, and select Edit Profile.
Go to Preferences.
Click on the box labeled I want to delete my account.

What is the volume of 5 m 8m and 10.5m

Answers

Answer:

Volume = 5×8×10.5 = 420 meters3

Step-by-step explanation:

5×8×10.5

The sycamore grove contains 30 sycamoretrees. That's 75 percent of all the sycamore
trees in the park. How many sycamore trees
are in the park?

Answers

Answer:

40 sycamore trees

Step-by-step explanation:

We can use the following equation to calculate the total number of sycamore trees in the park:

75% of Total sycamore tree = 30 sycamore tree

0.75 of Total sycamore tree = 30 sycamore tree

$\textsf{ Total sycamore tree = $\sf (30)/(0.75) $ sycamore tree}$

$\textsf{ Total sycamore tree = $\sf 40 $ sycamore tree}$

Therefore, there are 40 sycamore trees in the park.

Let’s assume that the number of sycamore trees in the park is x. According to the problem statement, 30 sycamore trees make up 75% of all sycamore trees in the park. This can be expressed as:

30 = 0.75 * x

Solving for x, we get:

x = 30 / 0.75

x = 40

Therefore, there are 40 sycamore trees in the park.

What is −2 1/4⋅(−2 1/3) ?

Answers

= -2 1/4 (-2 1/3)
= -9/4 * -7/3
= 63/12

So, Your Answer would be 63/12 or 5 1/4

Hope this helps!

The answer is 5 1/4. I took the test

|2x-3| < 9 solve for x

Answers

$|2x-3| < 9 \n \n2x-3 < 9 \ \ and \ \ 2x-3 > -9 \n \n 2x < 9 +3 \ \ and \ \ 2x > -9 +3 \n \n 2x < 12\ \ and \ \ 2x > -6 \n \n x < 6\ \ and \ \ x > - 3 \n \n x \in (-3,6)$

$|2x-3| < 9\iff2x-3 < 9\ \wedge\ 2x-3 > -9\n\n2x < 9+3\ \wedge\ 2x > -9+3\n\n2x < 12\ \wedge\ 2x > -6\n\nx < 6\ \wedge\ x > -3\n\n\nx\in(-3;\ 6)$

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