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svetoff [14.1K]
3 years ago
8

PLZZZZZZ NEED HELP!!!!!!!!!!

Mathematics
1 answer:
egoroff_w [7]3 years ago
4 0
The first one is the second one. t(n)=20n+480

Question 4: is the first one t(n)=8n+15
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8x(5+10)= (8x5) + (5x10)
Slav-nsk [51]

Answer:

i think its x= 0.75

Step-by-step explanation:

substitute:

8x × 5 = 40x

8x × 10 = 80x

8 × 5 = 40

5 × 10 =50

40x + 80x = 40 + 50

add like terms

so it'd be:

120x = 90

now divide 90 by 120 and that would give you the value of x alone which is 0.75

7 0
3 years ago
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CAN SOMEONE PLEASE HELP? THESE QUESTIONS ARE REALLY HARD AND I HAVE BEEN STUCK ON THEM FOR A WHILE. I REVIEWED THE LESSON AND EV
aniked [119]

Well if I did the right calculations... Kim is 24. The sister is age twelve! Hope I helped.

A. K+S=36

B. Well Simple Addition and Subtraction solves this easily. If you Add 12+12 it equals 24. It still needs to be larger so that Kim is twice as old as her little sister. So you Add another 12 which gives you 36. Or you can easily subtract 12 from it and that will also bring you to 24.

6 0
2 years ago
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Use the distributive property to find the product of the rational number. <br> 5/2 (- 8/5 + 7/5)
Serjik [45]

9514 1404 393

Answer:

  -1/2

Step-by-step explanation:

The factor outside parentheses multiplies each term inside.

  5/2(-8/5 +7/5)

  = (5/2)(-8/5) +(5/2)(7/5)

  = -8/2 +7/2 = -1/2

7 0
3 years ago
Which statement is true?
Leviafan [203]
It’s b is the second s is supposed to be 5
3 0
2 years ago
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A.) 18<br> B.) 20<br> C.) 24<br> D.) 25
Arlecino [84]

D,  s=180- n-2

and s=165n

165n=180-n-2

3 0
2 years ago
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