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Lerok [7]
3 years ago
10

I need help asap ! 6th grade math surface area .

Mathematics
1 answer:
notsponge [240]3 years ago
3 0

Answer:

136 un²

Step-by-step explanation:

Rectangles/linear faces: <em>7 * (5 + 6 + 5) = 7 * 16 = 112</em>

Triangles/bases:<em> 2 * 1/2(6 * 4) = 24</em>

Total: <em>24 + 112 </em>= 136 un²

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Edmond doubled the width of the crate. How do the perimeter and the area of the floor of the new crate compare to those of the o
Mariana [72]

Answer:

The area would be doubled also

The perimeter will be increased in a factor of 1.4

Step-by-step explanation:

Originally the area of new crate = L * B = 1.2 * 0.8 = 0.96 m^2

perimeter is 2(L+ B) = 2(1.2 + 0.8) = 4 m

Now let’s double the width , it becomes 0.8 * 2 = 1.6 m

Area would be 1.6 * 1.2 = 1.92 m^2 which is two times the previous area

The increased perimeter will be 2(1.6 + 1.2) = 5.6 m

This is an increase in factor of 1.4

7 0
3 years ago
108 rounded to the nearest tenth
Artemon [7]

Answer:

110

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
use the order of operations to simplify this expression. exspress your answer in the simplest form. 1/4 + 1/2 ÷ 2/8​
elixir [45]

Answer:

9/4

Step-by-step explanation:

This is quite simple you do 1/2 divided by 2/8 which will become multiplication. Then its that number plus 1/4

you get a answer of

9/4 in fraction form

2.25 in decimal form

2 1/4 in mixed fraction form

7 0
2 years ago
A pair of shoes is on sale for 20% off the regular price of $72.50. How much will the customer pay with the 20% markdown?
topjm [15]

Answer:

72.50/100 X 80 = 58

total cost with mark down $58

6 0
3 years ago
In the figure CD is the perpendicular bisector of AB . If the length of AC is 2x and the length of BC is 3x - 5 . The value of x
Dennis_Churaev [7]

Answer

Find out the value of x .

To proof

SAS congurence property

In this property two sides and one angle of the two triangles are equal.

in the Δ ADC and ΔBDC

(1) CD = CD (common side of both the triangle)

(2) ∠CDA = ∠ CDB = 90 °

( ∠CDA +∠ CDB = 180 ° (Linear pair)

as given in the diagram

∠CDA  = 90°

∠ CDB = 180 ° - 90°

∠ CDB = 90°)

(3) AD = DB (as shown in the diagram)

Δ ADC ≅ ΔBDC

by using the SAS congurence property .

AC = BC

(Corresponding sides of the congurent triangle)

As given

the length of AC is 2x and the length of BC is 3x - 5 .

2x = 3x - 5

3x -2x =5

x = 5

The value of x is 5 .

Hence proved


7 0
3 years ago
Read 2 more answers
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