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3 years ago

2x − y = 11 x + 3y = −5 what is the x value

Mathematics

1 answer:

nekit [7.7K]3 years ago

7 0

your answer is

{x,y}={4,-3}

btw can i have brainliest

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What is the surface area of this cylinder (round to the nearest tenth) 6.4 m2 25.1 m2 37.7 m2 62.8 m2

denpristay [2]

Answer: 62.8m^2

Step-by-step explanation:

Surface area of a cylinder = $2\pi r^{2} + 2\pi rh$

r = 2m, h = 3m

$2\pi (2)^{2} + 2\pi (2)(3)$

= 62.83185

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3 years ago

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PLSS HELPP 25 POINTS AND BRAILIEST

Salsk061 [2.6K]

Answer:

$\Large \boxed{\sf 136 \ m^2}$

Step-by-step explanation:

Surface area of this shape = area of 2 triangles + area of 3 rectangles

$(6 \times 4 \times 0.5 \times 2 )+(7 \times 5 \times 2+7 \times 6)=136$

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2 years ago

Material for a dress costs £5.50 per metre. find the cost of 10cm and 70cm

Zielflug [23.3K]

Answer:

The cost of 10 cm and 70 cm are £0.55 and £3.85 respectively.

Step-by-step explanation:

Material for a dress costs £5.50 per meter.

We know that, 1 meter = 100 cm.

Suppose, the cost of 10 cm material is $x$ and the cost of 70 cm material is $y$

Now, according to the ratio of "cost" to the "length of material" , we will get.......

$\frac{x}{10} =\frac{5.50}{100}\\ \\ 100x=10*5.50=55\\ \\ x=\frac{55}{100}=0.55$

and

$\frac{y}{70} =\frac{5.50}{100}\\ \\ 100y=70*5.50=385\\ \\ x=\frac{385}{100}=3.85$

So, the cost of 10 cm material is £0.55 and the cost of 70 cm material is £3.85

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3 years ago

Anthony travels from Page Az to Flagstaff Az at a rate of 60 miles per hour in 2.5 hours. How far is Flagstaff from Page?( Show

DerKrebs [107]

Answer:

150 miles

Step-by-step explanation: The distance from Page to Flagstaff can be shown with the equation d = r * t, or distance = rate * time. In this case, the rate is 60 mph, and the rate is 2.5 h. Plugging that into the equation you get d = 2.5(60) = 150, giving you your distance.

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3 years ago

Which function describes this table of values? x:10,5,0,-5 y:8,4,0,-4

katrin [286]

Answer:

First option

Step-by-step explanation:

You can plug in values and verify.

Please help me by marking me brainliest. I'm really close :)

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3 years ago

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