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Y_Kistochka [10]
4 years ago
13

Help please and explain how u got it with stepsss

Mathematics
1 answer:
spayn [35]4 years ago
6 0
Number of surface = 5

Surface 1:   8 x 5 = 40 . [The left side]
Surface 2: 15 x 5 = 75 . [The bottom side]
Surface 3: 17 x 5 = 85 . [The slanted side]

[Surface 4 and 5 are triangles and they have the same surface area]
Surface 4 : 1/2 x 15 x 8 = 60
Surface 5 : 60 

Total : 40 + 75 + 85 + 60 + 60 = 320 square units


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-2x-3y=-7<br> y+1=x<br> solve for y and x
sertanlavr [38]

Answer:

x = 2 and y = 1

Step-by-step explanation:

First, solve for y by substituting the second equation as x into the first equation

-2x - 3y = -7

-2(y + 1) - 3y = -7

Simplify and solve for y

-2y - 2 - 3y = -7

-5y - 2 = -7

-5y = -5

y = 1

Solve for x by plugging in 1 into the second equation

y + 1 = x

1 + 1 = x

2 = x

So, the answer is x = 2 and y = 1

4 0
3 years ago
I need help with number 3plzzzzz
MrMuchimi

are of a circle=pie r squared. So first find the area using the diameter. half of 3.5 is 1.75. 1.75 squared is 3. 06. 3.14 times 3.06 is 9.61. Now find half of that which is 4.81

5 0
4 years ago
Find the value of X. Write your answer as a decimal.
stellarik [79]

Answer:

x = 115.5

Step-by-step explanation:

The measure of the chord- chord angle x is half the sum of the arcs intercepted by the angle and it's vertical angle, that is

x = \frac{1}{2} (152 + 79) = 0.5 × 231 = 115.5

3 0
3 years ago
Not a solution to the inequality 2x - 5 &gt; -4
djverab [1.8K]

Answer:

x>0.5

Step-by-step explanation:

move the -5 over to the 4 but make the negative a positive, then divide everything by 2 ant there you go x>0.5

5 0
3 years ago
Need some help please
aliina [53]

Answer:

the answer is 12 attendees

Step-by-step explanation:

Let a=the attendees & Let d=the cost

if the budget is $97 and the cost of the gala is represented by the equation d=7a+13, substitute the $97 for d

d=7a+13

97=7a+13

now take subtract 13 from both sides

97-13=7a+13-13

since the 13 cancels out on the right side it'll now read:

84=7a

to get a by itself you now divide 7 from both sides getting a by itself

84/7=7a/7

12=a

so the answer will be 12


3 0
3 years ago
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