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3 years ago

I need some help, yes this is a repost soz.

Mathematics

1 answer:

Alinara [238K]3 years ago

6 0

Answer:

Whats the question ;-;

Step-by-step explanation:

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2x-y=3 -x-y=3 what does this equal system of equations

Jet001 [13]

Topic : Linear equations in two variables.

Given :

2x - y = 3 ––– (i)
- x - y = 3 ––– (ii)

Solution :

Now,

(i) – (ii)

$\qquad \sf \: { \dashrightarrow 2x - y - ( - x - y) = 3 - 3}$

$\qquad \sf \: { \dashrightarrow 2x - y + x + y) = 3 - 3}$

$\qquad \sf \: { \dashrightarrow 3x = 0}$

$\qquad \bf \: { \dashrightarrow x = 0}$

Now, substituting the value of x in Eq (i) :

$\qquad \sf \: { \dashrightarrow 2x - y = 3 }$

$\qquad \sf \: { \dashrightarrow 2(0)- y = 3 }$

$\qquad \sf \: { \dashrightarrow 0- y = 3 }$

$\qquad \bf \: { \dashrightarrow y = - 3 }$

Therefore,

The value of x = 0 and y = -3

3 0

2 years ago

Paul jogged 3.25 miles, rick jogged 3 1/3 miles and sean jogged 3 1/8 miles. list the boys from least to greatest distance jogge

Novosadov [1.4K]

Answer:

Sean jogged 3.125, Paul jogged a distance of 3.25, Rick jogged 3.33

Step-by-step explanation:

make the fractions into decimals once they are in decimal form you cna then go and place them into the correct order.

3 0

3 years ago

What is the area of a sector with a central angle of \frac{5 \pi }{6} radians and a diameter of 5.6 in.? Use 3.14 for π and roun

kvasek [131]

Answer:

10.26 in²

Step-by-step explanation:

The area (A) of the sector is

A = area of circle × fraction of circle

= πr² × $\frac{\frac{5\pi }{6} }{2\pi }$

= π × 2.8² × $\frac{5}{12}$ ≈ 10.26 in²

7 0

3 years ago

I suck at math lololol

Dima020 [189]

2 and 4

Step-by-step explanation:

This image shows an example on corresponding angles.

4 0

3 years ago

Read 2 more answers

PLEASE HELP ME WITH THIS PROBLEM IVE BEEN ON IT FOR 3 DAYS NOW!

Len [333]

85 x 3 = 255
first 2 test grades were 81 and 86:
81 + 86 = 167

Need to find the 3rd to have exact average 85:
255 - 167 = 88

So her 3rd test needs to make 88 to make average of 85

Double check: 81 + 86 + 88 = 255 = 85 + 85 + 85

3 0

4 years ago