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lbvjy [14]
3 years ago
13

PLEASE EASY HELP*****

Mathematics
2 answers:
frez [133]3 years ago
6 0

Answer:

B

Step-by-step explanation:

Multiply through by x+5

2(x + 1) = x + 5 - 1            Combine like terms

2x + 2 = x + 4                 Subtract 2 from both sides.

2x = x + 4 - 2

2x = x + 2                         Subtract x from both sides.

2x - x = 2                          Combine

x = 2

B

tatyana61 [14]3 years ago
4 0
The answer is B okau
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Rina8888 [55]

Answer:

-5

Step-by-step explanation:

5 0
3 years ago
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Help within 10 min pleeeeeeeeeease
sineoko [7]
The answer should be 75
4 0
2 years ago
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Ralph is painting the barn below, including the sides and roof.  He wants to know how much paint to purchase. 
grandymaker [24]
PART A

The barn is constructed by the following 2D shapes

Two triangles of height = 4' and base = 20'
Area = 2 × (0.5×4×20) = 80

Two rectangles of length = 20' and width = 15'
Area = 2 × 20 × 15 = 600

Two rectangles of length = 45' and width = 15'
Area = 2 × 45' × 15' = 1350

One base of length = 45' and width = 15'
Area = 45 × 15 = 675

Two rectangles on each on one side of the roof. We have the length = 45'  but not the width. We can work out the width by using Pythagoras theorem

w² = 4² + 10²
w² = 16 + 100
w² = 116
w = √116 = 10.77

Area of the two rectangles on the roof part is = 2 ×10.77 × 45 = 969.33

Total area to paint = 969.33+675+1350+600+80 = 3674.33 ≈ 3700 (to the nearest hundreth)


PART B

Numbers of paint cans needed = 3700 ÷ 57 = 64.9 ≈ 65 cans

PART C

Total cost of paint = 65 × 23.50 = $1527.50

PART D

The barn is constructed by a cuboid and a rectangular prism

V of cuboid = length × width × height
V of cuboid = 20 × 45 × 15
V of cuboid = 13500

V of triangular prism = Area of cross section × depth
V = [0.5×4×20] × 45
V = 1800

Total volume = 1800 + 13500 = 15300


7 0
3 years ago
Pleas help !!!<br> Choices <br> X= -1<br> Y = -1<br> X = 1<br> Y= 1
____ [38]

Answer:

x=-1

Step-by-step explanation:

The axis of symmetry is along the vertex

The vertex is at (-1,-2)

The x coordinate is -1

x=-1

6 0
3 years ago
Choose the problem that has the same answer as 6 × 2 × 3.
11Alexandr11 [23.1K]

Answer:

6x3x2

Step-by-step explanation:

8 0
3 years ago
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