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Nonamiya [84]
3 years ago
12

3.5x + 3 - 4.9x = 4(0.4x + 3) PLEASE HELP, WITH STEPS TOO

Mathematics
2 answers:
NikAS [45]3 years ago
7 0
-3 is the right answer !
Romashka [77]3 years ago
3 0

Answer:

x= -3

Step-by-step explanation:

PEMDAS order of operations

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Is full biology in 9th grade?
IgorLugansk [536]

Answer:

I think so, but maybe if the schools are different they change.

6 0
2 years ago
Aidan has 20 ft of fence with which to build a rectangular dog run. What is the maximum area he can enclose? Enter your answer i
irina1246 [14]
<h2>Maximum area is 25 m²</h2>

Explanation:

Let L be the length and W be the width.

Aidan has 20 ft of fence with which to build a rectangular dog run.

         Fencing = 2L + 2W  = 20 ft

                     L + W = 10

                      W = 10 - L

We need to find what is the largest area that can be enclosed.

     Area = Length x Width

      A = LW

       A = L x (10-L) = 10 L - L²

For maximum area differential is zero

So we have

      dA = 0

      10 - 2 L = 0

        L = 5 m

      W = 10 - 5 = 5 m

Area = 5 x 5 = 25 m²

Maximum area is 25 m²

7 0
3 years ago
QUESTION :-
Galina-37 [17]

Answer:

  • 92000

Step-by-step explanation:

<u>Given:</u>

  • I = 5% = 0.05
  • t = 2 years
  • Let the sum is x.

<u>Simple interest:</u>

  • SI = x*2*0.05 = 0.1x

<u>Compound interest:</u>

  • CI = x*(1 + 0.05)² - x = 1.1025x - x = 0.1025x

<u>The difference is 230:</u>

  • 0.1025x - 0.1x = 230
  • 0.0025x = 230
  • x = 230/0.0025
  • x = 92000
3 0
2 years ago
When 5 is added to a set of 3 numbers the mean increases to 4.6. What was the mean of the original 3 numbers?
SVEN [57.7K]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷  Multiply 4.6 by 4 to get the sum of the numbers after 5 was added:

4.6 x 4 = 18.4

^ This is the new total

Subtract 5 from this:

18.4 - 5 = 13.4

Divide this value by 3 to get the original mean:

13.4/3 = 67/15

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

7 0
3 years ago
Start at -3 and add 10 number sequence
galben [10]

Answer:

-3,7,17,27,37,47,57,67,77,87,97,107

Step-by-step explanation:

You add 10 to -3 which gives you 7. You continue adding. This sequence goes on forever. You just keep adding 10.

I hope this helps!

5 0
2 years ago
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