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Crazy boy [7]
3 years ago
15

Jose completes 2 assignments per day and already completed 5 assignments. He needs to complete a total of 15 assignments. What i

s the equation matching this scenario?
Mathematics
1 answer:
dangina [55]3 years ago
8 0

Answer: 15 = 2x + 5

Step-by-step explanation:

15 = total

x = days

2 = assignments per day / growth

5 = already done / y-intercept

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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
3 years ago
A store starts the day with 45 packages of cheese slices. Each package contains the same number of cheese slices. By the end of
Helen [10]

Answer

Step-by-step explanation:

5 0
2 years ago
In the figure is a right triangle ABC with AC=10cm and BC=6cm. Determine: 1.5.1 The height AB (hint: Theorem of Pythagoras)
Alexxandr [17]

Answer:

height AB is 8 cm

Step-by-step explanation:

AB= √AC^2- BC^2

= √(10)^2- (6)^2

= √100-36

= √64

= 8

3 0
3 years ago
Select the term that does not describe the triangle. Select all that apply.
gulaghasi [49]

The answer is scalene

7 0
2 years ago
Maureen used 0.9 meters of fabric to make a pillow. How many more pillows of this size can Maureen make with 12.75 meters of add
Basile [38]

Answer:

14

Step-by-step explanation:

12.75m/0.9m = 14

4 0
2 years ago
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