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belka [17]
3 years ago
7

Help me please !! Tell me the algebraic expression to 1 please !!!

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
5 0
You need to distribute the 4 to both the n and the positive 5 so you’re answer would be 4n + 20.
You might be interested in
Someone please help
Natasha2012 [34]

Correct Work

4x+8 +3(x-4)

4x +8 + 3x-12

4x+3x+8 -12

7x -4

Mistake Made

  1. 3 wasn't multiplied by the 4 in the bracket
  2. Like terms wasn't combined in the working out
  3. The answer was supposed to be -4, 8-4= -4
6 0
3 years ago
How much is 400.00 invested at 9% interest compounded continuously be worth after 3 years
blagie [28]
COMPOUNDED
not simple interest,
compound interest is neat since you earn interest on the interest you earned

ok so what you use is F=Pe^(rt)
F=future or ending amount
P=present amount
e=base of the natural  log (some digits are 2.71828182845)
r=rate in decimal
t=time in years

presen amount is 400
rate is 9% or 0.09
time is 3 years

F=400e^(0.09*3)
F=400e^(0.27)
F=523.986
round
F=523.99

5 0
3 years ago
Is 12/15 a repeating or Terminating decimal
saul85 [17]

Answer:

Terminating

Step-by-step explanation:

12/15 = 0.8

3 0
3 years ago
Given that the total distance travelled = 810m find a) the value of V
Evgen [1.6K]

Answer:

a

Step-by-step explanation:

5 0
3 years ago
A candy store sells walnuts for $8 per pound, and pecans for $2 per pound. If the store wants to create a bag of mixed nuts that
gizmo_the_mogwai [7]
Answer: 1/3 pound pecans and 2/3 pound walnuts.

Explanation: 

x ==> weight of walnuts
y ==> weight of pecans

║ x + y = 1 
║ 8x +2y = 6

║ x = 1 - y
║ 8x + 2y = 6

8(1 - y) + 2y = 6

8 - 8y + 2y  = 6

6y = 2

y = 1/3

x = 1 - 1/3 = 2/3
7 0
3 years ago
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