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2 years ago

9

Using place value strategy to divide3,600÷9?

1 answer:

Crazy boy [7]2 years ago

5 0

Answer:

The answer is 400 :)

Step-by-step explanation:

hope that helped a little

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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>

4 0

2 years ago

Can someone please help me answer this.

Anika [276]

4(y - 7) = 2y - 38
4y - 28 = 2y - 38
4y - 2y = -38 + 28
2y = -10
y = -5

3 0

3 years ago

Katie keeps a record of her transactions in a notebook. Looking over her records for the past two weeks, Katie finds that her ba

kodGreya [7K]

<span>c is the correct answer</span><span />

4 0

3 years ago

Read 2 more answers

Y=1/4x + 8 what would be the slope and the y-intercept

boyakko [2]

slope intercept form is: y = mx + b

m = slope

b = y-intercept

In the equation y = 1/4x + 8

m = 1/4 = slope

b = 8 = y-intercept

6 0

3 years ago

Read 2 more answers

ladder is 8 ft long . The ladder needs to reach to a window that is 6 ft above the ground . How far away from the house should t

stiks02 [169]

Answer:

5.3 or 28

Step-by-step explanation:

$6^{2}$ + $b^{2}$ = $8^{2}$

36+ $b^{2}$ =64

64-36=28

$\sqrt{28\\}$

=5.29 or 5.3

5 0

2 years ago