3 years ago

PLEASE HELP PLEASEEEEE I AM GIVING 30 POINTS IF YOU ARE RIGHT

Mathematics

2 answers:

steposvetlana [31]3 years ago

7 0

Answer:

option 3

Step-by-step explanation:

vovangra [49]3 years ago

5 0

Answer:

the third one

Step-by-step explanation:

HOPE THIS HELPS!!!!

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Solve the simultaneous equations 3x + 2y = 30 3x - y = 21

Mrac [35]

Answer:

x = 8 , y = 3

Step-by-step explanation:

3x + 2y = 30

3x - y = 21 -> y = 3x - 21

3x + 2 (3x - 21) = 30

3x + 6x - 42 = 30

3x + 6x = 30 + 42

9x = 72

x = 72/9 = 8

y = 3*8 - 21 = 24 - 21 = 3

∴ x = 8 & y = 3

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3 years ago

What properties does a square have in common with a quadrilateral?

Rus_ich [418]

Both figures always have four sides

8 0

3 years ago

Norman bought 5/6 pounds of cookies. He ate 3/5 cookies. What was the weight of the cookies he ate

schepotkina [342]

Answer:

Half a pound.

Step-by-step explanation:

To find the number of pounds he ate, multiply the fractions.

$\frac{5}{6}*\frac{3}{5} = \frac{15}{30}=\frac{1}{2}$

He ate 1/2 a pound.

8 0

4 years ago

Here yall go enjoy have a good day

kozerog [31]

Answer

Step-by-step explanation:

hope you have an good day aswell ;D

4 0

3 years ago

I have 30 ones 2thousands 4hundred thousands , 60 tens and 100 hundreds what number am I ?

viva [34]

Answer:

Step-by-step explanation:

Units = 30

Thousands = 2,000

Hundreds of Thousands = 400,000

Tens = 60

Hundreds = 100

HTHHTU

400,000

2,000

100

30

402,190

7 0

4 years ago

Read 2 more answers