3 years ago

3y +7 =20 I will give brainliest

Mathematics

2 answers:

Gre4nikov [31]3 years ago

7 0

Answer:

4.3

Step-by-step explanation:

galben [10]3 years ago

3 0

Answer:

y = 13/13

helpful??

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Help pls :) 10 points

Alexeev081 [22]

Answer:

sq root of 64 = 8, sq root of 81 = 9, 8 and 9

Step-by-step explanation:

Since Sq root of 64 = 8 and Sq root of 81 = 9 it is known that sq root of 66 is between 8 and 9

7 0

3 years ago

In a deck of cards what's the probability of drawing a Face Card (king, queen, jack)

Bumek [7]

Answer:

3/13

Step-by-step explanation:

There are 52 card in a deck of cards

12 of them are face cards 3 cards *4 suits =12

P (face card) = 12/52 = 3/13

3 0

3 years ago

Read 2 more answers

A rectangle has a perimeter of 52 cm and an area of 144 square cm. Find its length and width if they are in whole numbers.

Bingel [31]

8 and 18:
8+8+18+18= 52
$8*18$ = 144

Tada!

6 0

3 years ago

PLEASE HELP Complete the table with the number of sit-ups you have to do sunday so that the mean number of sit-ups per day is 10

klemol [59]

The complete table will be:

$Monday - 100\\ Tuesday-65\\ Wednesday- 120\\ Thursday-150\\ Friday-90\\ Saturday- 0\\ Sunday-175$

Explanation

Suppose, the number of sit-ups in Sunday is $x$

Mean is the simple average of some numbers. For finding the mean number of sit-ups per day, we need to divide the 'total number of sit-ups' by the 'total number of days'.

Here the total number of days is 7 and the total number of sit-ups for 7 days $= 100+65+120+150+90+0+x= 525+x$

Given that, the mean number of sit-ups per day is 100. So, the equation will be...

$\frac{525+x}{7}=100\\ \\ 525+x=700\\ \\ x= 700-525=175$

So, the number of sit-ups you have to do Sunday is 175.

6 0

4 years ago

Find the zeros of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients

Anna [14]

Answer:

Zeros would be x= 0, -2

Step-by-step explanation:

hope this helps :)

6 0

3 years ago