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3 years ago

First correct answer = Brainliest and 25 Points!!!

Mathematics

1 answer:

Svetach [21]3 years ago

8 0

Answer:

x=7,y=4.5

Step-by-step explanation:

ok so first you do 4x-y=11,6x-2y=13

then you have to eliminate something

so the easiest one is to multiply the y by -2

the reason why you have to multiply by -2 is because positive cancels out a negative

when you do that you get

x=7

then you plug in the x into one of the equations. the end was that y=9/2 or

y=4.5

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3 years ago

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A truck driver has a route that takes him 125 miles each way each day that he works. If he makes 15 roundtrips on this route per

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Answer: 3,750 miles

Step-by-step explanation:

Route takes him 125 miles each way so in a day he travels:

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= 250 miles

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3 years ago

If Charlie liked dogs, and Macy's hat was green, how fast was the car, that the dog's dad was driving?

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3 years ago

21.) A rectangle has an area of 36 square units. As the length and width change, what do you know about their

natima [27]

Answer:

the length and the width are inversely proportional to each other ( $l=\frac{36}{w}$ or $w=\frac{36}{l}$ )

Step-by-step explanation:

Let

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w units = width of the rectangle.

The area of the rectangle is

$\text{Area}=\text{Length}\cdot \text{Width}$

A rectangle has an area of 36 square units, so

$l\cdot w=36$

Complete the table with some values of l and w that fit the previous formula:

$\begin{array}{ccc}\text{Length}&\text{Width}&\text{Area}\\ \\36&1&36\cdot 1=36\ un^2.\\18&2&18\cdot 2=36 \ un^2.\\12&3&12\cdot 3=36\ un^2.\\ 9&4&9\cdot 4=36\ un^2.\\l&w&l\cdot w=36 \ un^2.\end{array}$

As you can see, the length and the width are inversely proportional to each other ( $l=\frac{36}{w}$ or $w=\frac{36}{l}$ )

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4 years ago

Arc AD=98 and I need help with both problems below

Anni [7]

Answer:

arc DC = 64

angle DCQ = 32

Step-by-step explanation:

Hello There!

The circumference of a normal circle is 360

Given that arc AD = 98 and having found arc ABC we can find arc DC by subtract the known arcs from 360

360 - 98 - 198 = 64

Hence arc DC = 64

The problem wants us to find angle DCQ having found arc DC

Remember like stated before an included angle is equal to 1/2 its opposite arc

64/2=32

so angle DCQ = 32

5 0

3 years ago