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pochemuha
3 years ago
13

Will someone plz work this out for me

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
7 0
The answer equals 2a+87.
klio [65]3 years ago
5 0
3(4a+9)-10(a-6)
(distribute)
12a+27-10a+60
(add common terms)
2a+87
(have x be alone on one side of the equation, in this case by subtracting 87 from both sides)
2a=-87
(divide both sides by 2)
a=43.5
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Round 17.5 to the nearest 1
skelet666 [1.2K]

Answer:

18

Step-by-step explanation:

.5 is 5 4 and below round down 5 and up round up

8 0
3 years ago
Neil started a stamp collection with 12 stamps. Every week , he adds 4 more stamps to the collection. Which function? F represen
svlad2 [7]

Answer:

s=4w+12

Step-by-step explanation:

Let

s -----> the number of stamps

w ----> the number of weeks

we know that

The linear equation that represent this situation is

s=4w+12 ----> equation of the line into slope intercept form

where

the slope m is equal to m=4\ stamps/week

the y-intercept b is equal to b=12\ stamps ---> (the initial value)

7 0
3 years ago
Determine the domain and range for the function m(x)=-x^2+4x-3
jasenka [17]

Answer:

domain is all real numbers

range is y is less than or equal to 1 (it is a downward parabola)

4 0
3 years ago
I need help pleace ​
Whitepunk [10]

Answer

<em>length = width + 15</em>

<em>Area = length * width; area is 54 square feet.</em>

<em>Two equations are:</em>

<em>L = W + 15</em>

<em>L * W = 54</em>

<em>To solve, we substitute first equation into second equation:</em>

<em>(W + 15) * W = 54</em>

<em>w^2 + 15w = 54</em>

<em>w^2 + 15w - 54 = 0</em>

<em>(w+18)(w-3) = 0</em>

<em>w = -18 or 3</em>

<em>The width cannot be negative, so 3 is the width and since length is 15 more than width, length is 18:</em>

<em />

<em>Length = 18 feet</em>

<em>Width = 3 feet</em>

<em />

<em />

7 0
2 years ago
What is 1 1/4 × 4 3/4 =
Luden [163]
First, we need to turn this into an improper fraction. Therefore we have: 1 1/4 = 5/4 and 4 3/4 = 19/4
Now we multiply across and eliminate as needed.
5/4 * 19/4 = 95/16
Finally, we reduce and convert to a mixed fraction.
16 goes into 95, 5 times with a remainder of 15. Therefore, we can conclude that our answer is: 5 15/16.
4 0
3 years ago
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