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3 years ago

HELP!!! WILL MARK AS BRAINLIEST!!

Mathematics

2 answers:

neonofarm [45]3 years ago

4 0

7/10- 1/4

7x2= 14
10x2= 20

1x5=5
4x5=20

14/20-5/20= 9/20 litre of orange juice

harina [27]3 years ago

3 0

9/20

explanation:

7/10 - 1/4
14/20 - 5/20
14-5/20
9/20

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I really help with this ill mark u brainliest pls

erma4kov [3.2K]

Answer:

$m\angle XYW = (155 - 20x)\degree$

Step-by-step explanation:

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3 years ago

A rectangle has a length of 12 yards less than 3 times its width. If the area of the rectangle is 135 square yards, find the len

Aleonysh [2.5K]

Answer:

The length is 15 yards

Step-by-step explanation:

Given

Represent the width with W and length with L: So

$Area = 135yd^2$

$L=3W - 12$

Required

Determine the length of the rectangle:

Area is calculated as thus:

$Area = L * W$

Substitute 3W - 12 for L and 135 for Area

$135= (3W - 12) * W$

$135= 3W^2 - 12W$

Reorder:

$3W^2 - 12W - 135= 0$

Divide through by 3

$W^2 - 4W - 45 = 0$

Expand:

$W^2 - 9W + 5W - 45 = 0$

$W(W - 9) + 5(W - 9) = 0$

$(W + 5)(W-9) = 0$

$W + 5 = 0$ or $W - 9 = 0$

$W = -5$ or $W = 9$

But width can't be negative

So:

$W = 9$

Recall that: $L=3W - 12$

$L = 3 * 9 - 12$

$L = 15$

<em>Hence, the length 15 yards</em>

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3 years ago

What is the measure of an angle that is it’s own complement ?

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A complement is angle that can be added to another to equal 90 degrees.

So two times the same number would equal 90.

90 / 2 = 45

The angle that is its own complement is 45 degrees.

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The sweater is now $19.25

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Step-by-step explanation:

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