All categories

2 years ago

Daniel got 75 marks,72 marks and 63 marks in three tests what is his average

Mathematics

2 answers:

Aneli [31]2 years ago

4 0

<h2>AVERAGE</h2>

<h3>Problem:</h3>

Daniel got 75 marks,72 marks and 63 marks in three tests. What is his average?

<h3>Answer:</h3>

His average is 70.

— — — — — — — — — —

<h3>Solution:</h3>

To calculate his average, we need to get the sum of marks on his tests, then multiply it by number of tests.

$\displaystyle \small \tt Average = \frac{Sum \ of \ marks \ on\ tests}{Number \ of \ tests} \\\ \\ \tt Avg = \frac{75 + 72+63}{3} \\\\ \tt \: Avg = \frac{210}{3} \\\\ \: \tt{Avg = \underline{ \boxed{ \blue{ \bold{70}}}}}$

Hence, his average is 70.

FromTheMoon [43]2 years ago

3 0

Answer:

$\huge\boxed{\sf Avg = 70}$

Step-by-step explanation:

$\displaystyle Average = \frac{Sum \ of \ marks \ on\ tests}{Number \ of \ tests} \\\\Avg = \frac{75 + 72+63}{3} \\\\Avg = \frac{210}{3} \\\\\boxed{Avg = 70}\\\\\rule[225]{225}{2}$

Hope this helped!

You might be interested in

If 2 angles in a triangle are 71 degrees and 56 degree, what is the measure of the third angle?

ICE Princess25 [194]

Answer:

Step-by-step explanation:

Sol'n

Let the remaining angle of a triangle be x.

x+71+56=180 (Sum of angles of a triangle is 180°)

or, x+127=180

or, x=180-127

.:, x=53°

.:, The measure of third angle is 53°

8 0

2 years ago

Show how to solve 2x+5=13, justify the steps

liberstina [14]

Answer:

The answer is 4

Step-by-step explanation:

2x + 5 = 13

Now, Subtract 5 from both side we get,

2x + 5 - 5 = 13 - 5

2x = 8

Then, Divide both side by 2 we get,

2x/2 = 8/2

x = 4

Thus, The answer is 4

-TheUnknownScientist 72

8 0

2 years ago

Read 2 more answers

What is (2+2+3+10)x(8+9+-9+7)

qwelly [4]

Answer:

255

Step-by-step explanation:

(2+2+3+10) × (8+9+-9+7)

First, remove the brackets:

2 + 2 + 3 + 10 × 8 + 9 + -9 + 7

Now calculate like so:

2 + 2 + 3 + 10 = 17

8 + 9 + -9 + 7 = 15

(17) × (15) = 17 × 15 = 255

PLEASE DO MARK ME AS BRAINLIEST UWU 

6 0

2 years ago

Read 2 more answers

The table shows the approximate height of an object x seconds after the object was dropped. The function h(x) = –16x2 100 models

gregori [183]

The given model would make the least sense to use for x=-2.75.

the given function is:

$h(x)= -16x^2 +100$

a quadratic relationship,

where

h is the height in feet

x is the time in seconds

<h3>what is kinetic energy?</h3>

Kinetic energy is a form of energy that an object or a particle has by reason of its motion.

as we know that time always appears to run forward, never backward. cannot take negative values so option 1 i.e 2.75 is not possible. Also, after a certain period of time object will vanish all its kinetic energy, resulting in h=0 but h(-2.75)= -21 which is meaningless.

h(-2.75) = $-16*(-2.75)^2+100 = -21\\$

h(0.25) = $-16*0.25^2 +100=99$ $-0.25^2*16+100=99$

h(1.75) = $-16*1.75^2+100=51$

h(25) = $-16*2.25^2+100= 19$

therefore, x=-2.75 this model would make the least sense to use

to get more about kinetic energy refer to:

brainly.com/question/114210

6 0

1 year ago

Three friends earned more than $200 washing cars. They paid their parents $28 for supplies and divided the rest of money equally

Annette [7]

Earned more than, so over $200. we don't know the EXACT amount, but whatever that amount is 28 dollars is being taken off. Then they split the money, so I write an inequality. (just think of it at a number line k)

<----------O_____
__________

I couldn't really do better, sorry if I didn't help much.. :( but if I did pls leave a thanks :D

3 0

2 years ago