4 years ago

Which of these strategies would eliminate in the system of equations? x-2y=11 5x+3y=-11

Mathematics

2 answers:

fredd [130]4 years ago

6 0

Answer:b

Step-by-step explanation:If you multiply the top equation by -5 then you will have -5 +5, which is 0, therefore you are eliminating the x value

Sergio039 [100]4 years ago

5 0

Answer:

Step-by-step explanation:

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slavikrds [6]

Answer:575 and 1 extra tile

Step-by-step explanation:if the total tiles is 5,176 which will be used in 9 floors .We will divide the total tiles by the floors .Therefore we will get 5176 /9 =575.111

Therefore each floor will have 575 tiles

To get the remaining tiles

575*9 = 5175 which gives us a remainder of 1 tile when you subtract the total 5176 -5175 =1

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3 years ago

Calcula la longitud de la variable "x"

Olenka [21]

Answer:

x=20

Step-by-step explanation:

30°-60°-90°Δ

a=10

b=20

c=10 $\sqrt{3}$

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3 years ago

2x+2y=8<br> X+y=4<br> Which statement is true about the solution

laila [671]

Both x and y equal 2.

2•2=4 + 2•2=4

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2+2=4

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3 years ago

What is the y- intercept of the line whose equation is y= 7x+5

Ivahew [28]

The y-intercept is the constant in the equation: 5.

4 0

4 years ago

A movie fanatic has amassed a giant collection of home movies, some on DVD and others in the older VHS cassette mode. If the fan

frosja888 [35]

Answer:

984

Step-by-step explanation:

DVDs comprises 31.3% of total. And we also know that there are 308 DVD. Thus, we can say:

308 is 31.3% of total

We can let total be x, thus we can write an equation as:

308 = 0.313x

Solving for x:

$308 = 0.313x\\x=\frac{308}{0.313}\\x=984.02$

We can round and say there are 984 total movies

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3 years ago