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Yuliya22 [10]
3 years ago
11

Math help mee plzzzzzz THERE IS A ATTACHMENT SO WAIT AT LEAST 30 SECONDS PLZZZZ

Mathematics
2 answers:
Bas_tet [7]3 years ago
8 0
10. 2800 = 500 + 2x
     -500    -500
2x = 2300
/2      /2

x = 1150
the cost for one month is $1150

11. 20-3h=2
    -20       -20

-3h = -18
/-3     /-3

h = 6

12. g/7-15=-12
           +15 +15
g/7=3 >>   (7/1)*(g/7) = 3(7)

g = 21

13. 17= p-3-3p
2p-3=17
    +3 +3
2p = 20
/2     /2

p = 10

14. -4(r+6)=-63 (distribute)
-4r-24=-63
     +24 +24

-4r = 39
/-4    /-4

r = -9 3/4

15. 4x+3(x-2)=-20
4x+3x-6=-20
         +6   +6

7x = -14
/7     /7

x = -2

16. 3n-5=7n+11
      -3n   -3n

7n-11=-5
    +11 +11

7n = 6
/7    /7

n = 6/7

17. -6a+3=-3(2a-1) 
     /-3         /-3

-2a+1=-2a+1
+2a-1 +2a-1

0 = 0

18. 2y+5=1/2(4y+8) >> multiply both sides by 2/1
2(2y+5)=4y+8

4y+10=4y+8
-4y     -4y

10 \neq 8
yarga [219]3 years ago
4 0
I hope this helps you

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Help please asap!!!??
liberstina [14]

Answer:

-4=X 6=Y

Step-by-step explanation:


4 0
3 years ago
What's 0.1✖️N = 89.5 <br> What's 10*3 times N = 630
vladimir2022 [97]

<span><span>0.1n</span>=89.5</span>

<span /><span>Step 1: Divide both sides by 0.1.</span>‌

<span><u>Answer: </u><span><span>n=89</span></span></span>

<span><span><span /><span><span><span><span>(10)</span><span>(3)</span></span>n</span>=630</span></span></span>

<span><span><span /><span><span>Step 1: Simplify both sides of the equation.</span></span></span></span>

<span><span><span /></span></span>30n= 630

step1: divide both sides by 30.

<u>Answer</u>:<u /> n= 21

6 0
3 years ago
F(x) = 3x + 9, g(x) = 5x2<br><br> Find (f + g)(x).
maxonik [38]
(f-g)(x) is a shorthand way of saying that you need to get the difference of the two functions: f(x) and g(x). so essentially, (f-g)(x) = f(x) - g(x) = 5x+2 - (-3x+4) = 8x-2 (f/g)(-2) = f(-2)/g(-2) = -4/5 or -0.8 Hope this helps.
5 0
4 years ago
Need help plz..answer correctly plz​
kozerog [31]

Answer:

<em>In the year the study began, there were </em><em>40 bears more than cougars</em><em>.</em>

Step-by-step explanation:

1. <u>Determine the number of </u><em><u>bears</u></em><u> that were in the given region when the study began.</u>

<u />

  • Function: f(x) = 830(0.8)ˣ
  • Start ⇒ x = 0
  • Substituting: f(0) = 830 (0.8)⁰ = 830 (1) = 830

2. <u>Determine the number of </u><em><u>cougars</u></em><u> that were in the given region when the study began</u>:

  • From the table, the population of cougars 0 years after the study began was 790.

3. <u>Compute the difference</u>:

  • Number of bears - number of cougars = 830 - 790 = 40
5 0
3 years ago
A number that is at least 90
Juliette [100K]
The inequality is

x ≥ 90
4 0
3 years ago
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