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Bumek [7]
2 years ago
10

What is 0.4(5+2x)-0.5=3(0.3x+0.7) I've solved this but I'm not sure I got the right answer

Mathematics
2 answers:
iragen [17]2 years ago
8 0
0.4(5+2x)-0.5=3(0.3x+0.7)
2+0.8x-0.5=0.9x+2.1
0.8x-0.9x=2.1-2+0.5
-0.1x=2.5
x=-25
BlackZzzverrR [31]2 years ago
5 0
If you have a graphing calculator one way to know you are right is put the left side in Y1 and the right side in Y2 then hit 2nd trace and intersection then find the intersection and the X value is your answer. If you don't have a graphing calculator then I'm sorry
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Evaluate f(x)=e2x−1+2 when x=3. Give an approximate answer rounded to three decimal places.
olganol [36]

Answer:

f(3) ≈ 17.310

Step-by-step explanation:

e = 2.71828

Step 1: Define

f(x) = e2x - 1 + 2

x = 3

Step 2: Substitute and evaluate

f(3) = e2(3) - 1 + 2

f(3) = 6e + 1

f(3) = 16.3097 + 1

f(3) = 17.3097

f(3) ≈ 17.310

7 0
3 years ago
Plzzzzz help me on this and explain
Galina-37 [17]
The Answers are B and C
Its B because 12 is MORE than twice as much as M. Meaning 140 is larger than 2*m
Its C because again it is MORE than twice as much as M. Meaning that 140 is larger than 2m.

Answers;B,C
Hope this helped!
7 0
3 years ago
Help help please i will mark u brill
Roman55 [17]

Answer:

Step-by-step explanation:

u/4 + 9.9 = 16.9

Putting value of u = 24 in the equation

24/4 + 9.9 = 16.9

6 + 9.9 = 16.9

15.9 = 16.9

Bringing like terms on one

16.9 - 15.9 = 1

7 0
2 years ago
Read 2 more answers
What is 1+1 (hint 11)
Leviafan [203]

no it's 22 :D...............

5 0
2 years ago
Can you explain too? please and thank you
vitfil [10]

Answer:

I think you do 27 divided by 6 then multiple whatever you get by 17

27 divided by 6= 4.5

X 17 = 76.5

Step-by-step explanation:

I think this is how... you find the amount you need for 1 cup flour then multiply by 17 since you now know the amount of honey needed for one cup flour

7 0
2 years ago
Read 2 more answers
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