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frez [133]
2 years ago
8

Please help please help ???

Mathematics
1 answer:
zhannawk [14.2K]2 years ago
4 0

Answer: ○| ̄|_ =3

the answer would be 2, because the 30 is increased from the 3 by times 10 so it would be the same for the 20, 20/10=2

Step-by-step explanation: mr clean

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-2x^(3) +3=-1x^(3) -1x^(2) +1x+1
Natali5045456 [20]
-2x³ + 3 = -x³ - x² + x + 1

Add x³ to both sides, and subtract 3 from both sides.

-2x³ + x³ = -x² + x + 1 - 3

Add like terms.

-x³ = -x²+ x - 2

Move all of the (X's) to both sides, by adding x² to both sides, and subtracting x form both sides.

-x³ + x² - x = -2

~Hope I helped!~
7 0
3 years ago
If x=5.25, what is the value of f(x)=10x+8
Nataly_w [17]

Answer:

f(x) = 10x + 8 \\ f(5.25) = 10(5.25) + 8 \\ f(5.25) = 52.5 + 8 \\ f(5.25) = 60.5

8 0
3 years ago
If Jeff washes his car in 6 minutes and bob washes the same car in 8 minutes. How long does it take both of them to wash the sam
Tatiana [17]

Answer:

3 3/7 or 24/7 mins

Step-by-step explanation:

Let total job = X

Jeff's rate = X/6

Bob's rate = X/8

Combined rate = X/6 + X/8

(4X × 3X)/24 = 7X/24

7X/24 = X/T

T = X ÷ (7X/24)

T = X × (24/7X)

T = 24/7 mins

Shortcut:

T = product of individual times/sum of individual times

T = (6×8)/(6+8)

T = 48/14

T = 24/7

T = 3 3/7 mins

8 0
3 years ago
Read 2 more answers
Write an equation that describes the pattern
malfutka [58]
Can you post the rest of the info? x
4 0
3 years ago
A jar contains n nickels and d dimes. There are 28 coins in the jar,and total value of the coins is $2.20. How many nickels and
Harman [31]
N + d = 20 (there are a total of 20 nickels and dimes).05n + .1d = 1.4 (total change equals $1.40)
7 0
3 years ago
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