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labwork [276]
2 years ago
10

What is the value of the expression 7- x when x =2.

Mathematics
2 answers:
Schach [20]2 years ago
6 0

Answer:

5 is the answer of the equation

abruzzese [7]2 years ago
4 0

Answer:

5

Step-by-step explanation:

7-x

x=2

7-2

5

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What is 100 x 0.95=_____
kifflom [539]

Answer: 95

Step-by-step explanation:

That’s the same as 0.95 of 100. That’s because 0.95 represents 0.95 and 100 represents 100, the of is the same as x. You can switch the two numbers and you can still get the same answer. So, 0.95 of 100 is 95.

5 0
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98 people who were vaccinated were seniors. • 80 people reported a chronic disease or long-term health problem, such as heart or
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16.3 is the percent of seniors reported a chronic medical condition chronic is long term recovery acute is short term recovery

Step-by-step explanation:

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3 years ago
Katrina buys a 42-ft roll of fencing to make a rectangular play area for her dogs.
vekshin1

Answer:

(a) l = -w + 21

(b) Domain: 0 <em>(See attachment for graph)</em>

(c) f(w) = -w + 21

Step-by-step explanation:

Given

2(l + w) = 42

l = length

w = width

Solving (a): A function; l in terms of w

All we need to do is make l the subject in 2(l + w) = 42

Divide through by 2

l + w = 21

Subtract w from both sides

l + w - w = 21 - w

l  = 21 - w

Reorder

l = -w + 21

Solving (b): The graph

In (a), we have:

l = -w + 21

Since l and w are the dimensions of the fence, they can't be less than 1

So, the domain of the function can be 0

--------------------------------------------------------------------------------------------------

To check this

When w = 1

l = -1 + 21

l = 20

(w,l) = (1,20)

When w = 20

l = -20 + 21

l = 1

(w,l)= (20,1)

--------------------------------------------------------------------------------------------------

<em>See attachment for graph</em>

<em></em>

Solving (c): Write l as a function f(w)

In (a), we have:

l = -w + 21

Writing l as a function, we have:

l = f(w)

Substitute f(w) for l in l = -w + 21

l = -w + 21 becomes

f(w) = -w + 21

5 0
3 years ago
what percentage of discount should be in a watch costing Rs 270 Such that a custumer can by Rs 243 ?​
castortr0y [4]

Answer:

10 percentage is the ans

Step-by-step explanation:

see the pic there is full step

5 0
3 years ago
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In a certain town there were 403 robberies last year.this year the number of robberies has gone down 35% how many robberies were
8_murik_8 [283]
262 robberies this year
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3 years ago
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