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2 years ago

Quickkk please help and how all work x=3y-1 3x+4y=10

Mathematics

1 answer:

Harman [31]2 years ago

8 0

Answer:

y=1, x=2

Step-by-step explanation:

so first solve for y. plus x=3y-1 into the other equation.

so 3(3y-1)+4y=10.

Simplify

9y-3+4y=10 Add 3 to both sides

9y+4y=13 Add

13y=13 . Divide 13 from both sides

y=1

Plug 1 into the first equation.

x=3(1)-1

x=3-1

x=2 and y=1

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3 years ago

The general form of the equation of a circle is Ax2 + By2 + Cx + Dy + E = 0, where A = B 0. If the circle has a radius of 3 unit

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3 years ago

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Morgarella [4.7K]

Answer:

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Step-by-step explanation:

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2 years ago

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natka813 [3]

Answer:

The width of the football field is 160 feet.

The length of the football field is 360 feet.

Step-by-step explanation:

Let w represent width of the football field.

We have been given that the length is 200 ft more than the width, so the length of the field would be $w+200$ .

We are also told that the perimeter is 1,040 ft. We know that football field is in form of rectangle, so perimeter of field would be 1 times the sum of length and width. We can represent this information in an equation as:

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Let us solve for w.

$2(2w+200)=1040$

$4w+400=1040$

$4w+400-400=1040-400$

$4w=640$

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$w=160$

Therefore, the width of the football field is 160 feet.

Upon substituting $w=160$ in expression $w+200$ , we will get length of field as:

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3 years ago

Initially, the ratio of Ed’s toy cars to Pete’s toy cars was 5:2. After Ed gave 30 toy cars to Pete, they each had an equal numb

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2 years ago