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2 years ago

Solve by the substitution method 6x+5y =-26 -9x+y= 56

Mathematics

1 answer:

lozanna [386]2 years ago

4 0

Answer:

I think its well point form is (- 31/6, 19/2)

and equation form is x= - 31/6, y= 19/2

Step-by-step explanation:

Hope it helps!!!

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In the first 120 miles over 240 mile journey a truck driver maintained an average speed of 50 mph what was his average featuring

Keith_Richards [23]

The correct answer is 70 MPH because when 50 and 70 are added together and divided by 2, you get 60.

3 0

2 years ago

Read 2 more answers

2. it's not B

Tanzania [10]

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( 0 , 1 )

Equation Form:

x = 0 , y = 1

Step-by-step explanation:

Graph.

y = − 5/ 2 x − 1

y = 3 x − 1

y = 2/ 5 x + 1

y = 5/ 3 x + 1

4 0

2 years ago

What's 6 divided by 0.25

neonofarm [45]

24 since .25 times 4 = 1 so try 6 times 4 and it equals 24

7 0

3 years ago

Read 2 more answers

amber wants to put tile on the back special for kitchen counter she will need 36 square feet of tile.she will use basic tile tha

Komok [63]

Answer: Amber use 30 feet of basic tiles and 6 feet of decorative tiles.

Step-by-step explanation:

Let x be the foot of basic tiles and y be the foot of decorative tiles.

Now, according to the question, we have the following equations

$x+y=36\\y=36-x\ .......(1)\\\\8x+20y=36\times10\\2x+5y=90.......(2)\ \ \ [\text{divide equation by 4}]$

Put y=36-x in (2), we get

$2x+5(36-x)=90\\\Rightarrow2x+180-5x=90\\\Rightarrow-3x=-90\\\Rightarrow\ x=30\\\\\Rightarrow\ y=36-30=6$

Hence, Amber use 30 feet of basic tiles and 6 feet of decorative tiles.

5 0

3 years ago

Please help! I must match the numbers on the left with all appropriate number sets on the right . A number on the left may match

Flura [38]

Answer:

$\sqrt{5}$ = Irrational

6 = Natural, Whole, Integer, Rational

$\frac{1}{2}$ = Rational

-2 = Integers, Rational

Explanation:

See attached photo! (it is hard to explain in words haha)

Side note: All natural numbers are rational numbers, but not all rational numbers are natural numbers (this applies differently to all sections, like all integers are whole, but not all whole are integers, etc)

Side note #2: Whole numbers are just natural numbers AND zero

Hope this is correct (or at least helps), have a nice day! :D

3 0

2 years ago