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Dominik [7]
3 years ago
7

What is the value of x in the equation below?

Mathematics
2 answers:
vampirchik [111]3 years ago
5 0

Answer:

x= 7

Step-by-step explanation:

-3-(-8)-(-2)= x    

-3+8+2=x      (negative multiply negative) = +

-3+10=x

x=7

Viefleur [7K]3 years ago
4 0

Answer:

-9 may be the right answer

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kakasveta [241]

0.2 is the answer I believe ^^

6 0
3 years ago
4-2 1/4 <br> as a fraction !!!<br> ill mark !!<br> have a good day !!
noname [10]

Answer:

3/4

Step-by-step explanation:

it's for sure 3/4!!!!!

7 0
3 years ago
The diagram shows the cross-section of a wall of a cinema. It has to be painted. Work out the area that needs to be painted.
mestny [16]

Answer:

Area = 370 m²

Cost to paint = £105

Step-by-step explanation:

Area of the wall of a cinema hall = Area of a trapezoid (1)+ Area of a rectangle (2) + Area of a trapezoid (3)

Area of a trapezoid = \frac{1}{2}(b_1+b_2)h

where b_1 and b_2 are the parallel sides and h is the distance between these sides.

Area of trapezoid (1) = \frac{1}{2}(11+12)\times 6

                                  = 69 m²

Area of the rectangle (2) = Length × Width

                                         = 12 × 15

                                         = 180 m²

Area of the trapezoid (3) = \frac{1}{2}(12+10)\times 11

                                         = 121 m²

Now area of the wall = 69 + 180 + 121

                                   = 370 m²

One tin covers the area = 25 m²

Number of tins required to paint the wall = \frac{\text{Total area}}{\text{Area covered by one tin}}

= \frac{370}{25}

= 14.8

Therefore, number of tins to be purchased = 15

Cost to paint the complete wall = 15 × £7

                                                       = £105

8 0
3 years ago
What is angle D equal??
olganol [36]
63% Please Give me Brainlyest
7 0
2 years ago
Help on this please
AveGali [126]
18 11 25 8 4 !!!!!!!!
5 0
4 years ago
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