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dem82 [27]
1 year ago
7

5W + 13 = 34Solve the equation

Mathematics
1 answer:
astra-53 [7]1 year ago
7 0

To answer this question, we have to follow the next steps:

1. Subtract 13 to both sides of the equation:

5W+13=34\Rightarrow5W+13-13=34-13\Rightarrow5W=21

2. Divide the resulting equation by 5 to both sides of the equation:

\frac{5W}{5}=\frac{21}{5}\Rightarrow W=\frac{21}{5}=4.2

Therefore, the value that solves this equation is W = 21/5 or W = 4.2 (using a decimal expression.)

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Which expression has a value of 15 when p- 12?<br>18/9<br>Зр<br>18-р<br>р+ 3​
user100 [1]
Answer
P+3
Step by step explanation
12+3=15
3 0
4 years ago
What is the y-intercept of the quadratic function fx) (x- 6)(x-2)?
Elza [17]
Option 1
To find the y-intercept of a quadratic that is in factor formed follow the steps below:

First take the factor form and put it into standard quadratic form
Standard quadratic form:
ax^2 + bx + c

To put the the factor form of a qudratic into standard form, we use the foil method

(x-6)(x-2) = x^2 - 8x +12

Now to find the y-intercept, input 0 where the x is located:

f(x) = x^2 - 8x +12
f(0) = 0^2 - 8(0) +12
f(0) = 12
y-intercept = (0,12)

Why did I use 0? Remember the y-intercept is where the line crosses the y axis so this means the x value of the y intercept is always = 0. Also, not, to find the y-intercept, you could of just multiplied the 6 and 2 in the factored form to get the 12 and since you know that the x is always 0 at the y-intercept, you know that the y-intercept is at (0,12)

Option 2
Input 0 for x in f(x) = (x-6)(x-2)
f(x) = (x-6)(x-2)
f(0) = (0 - 6)(0 - 2)
f(0) = (6)(2) =  12
x = 0
f(0) = y = 12
y-intercept = (0,12)

7 0
4 years ago
The graph of f(x) = x3 + x2 - 9x - 9 is shown.
AysviL [449]

Answer:

-1, 3, -3

Step-by-step explanation:

I don't see the graph, but you can solve by factoring:

x^3+x^2-9x-9=0\\x^2(x+1)-9(x+1)=0\\(x+1)(x^2-9)=0\\(x+1)(x+3)(x-3)=0

By the factor theorem, the solutions of f(x) are -1, 3, and -3.

6 0
3 years ago
Read 2 more answers
Simplify -8/2 ÷ 6/-3<br> Answer choices:<br> A: -4<br> B: 2<br> C:-2<br> D: 4
motikmotik

Answer:

2

Step-by-step explanation:

-8/2=-4

6/-3=-2

-4/-2=2

7 0
3 years ago
I need you to give me all of the answers on the page (i answered 2 to show how you will be doing it)
Phantasy [73]

Answer:

3. 72= (x)+(x+1)+(x+2) where x= the smallest number

72=3x+3

-3        -3

69=3x

/3   /3

x=23

x+1=24

x+2=25

smallest is 23

4. 48= (x)+(x+2)+(x+4)

48= 3x+6

-6        -6

42=3x

/3    /3

x=14

x+2=16

x+4=18

smallest is 14

5. all erasers were the same cost

25= 4x+5 (x= cost of erasers)

-5         -5

20=4x

/4   /4

x=5

each cost  $5

6. b= boxes

22= b/2 +7

-7            -7

15=b/2

multiply both sides by 2 to cancel the denominator

30=b

30 boxes originally

7. 40= total

8= left

2= balls given to each

x=number of friends

40= 2x+8

-8         -8

32=2x

/2   /2

x=16

she has 16 friends

8.  12= left

a= total allowance

12= (a/2) +4

-4            -4

8= a/2

multiply both sides by 2 to cancel the denominator

a= $16

she had an allowance of $16

9.  4 (2) = amount that her four children recieved

10=amount she took for herself

x= original

x= 4(2) + 10

x= 8 +10

x=18

she started with 18 candies

10. a= age

244= 400 - 2a

-400 -400

-156= -2a

/-2     /-2

a= 78

they are 78 years old

11. c= comic books

36=  c/2 + 16

-16           -16

20=c/2

multiply both sides by 2 to cancel the denominator

c=40

she started with 40 comic books

12.  b= students in buses

472= 9b + 4

-4             -4

468=9b

/9     /9

b= 52

52 students went in each bus

13. h= hats

17= h/2 +5

-5          -5

12=h/2

multiply both sides by 2 to cancel the denominator

h=24

she had 24 hats on monday

14. p= pies the club made

60= (p+4)/5

multiply both sides by 5 to cancel the denominator

300=p+4

-4         -4

p= 296

the club made 296 pies

Step-by-step explanation:

5 0
3 years ago
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