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3 years ago

The sum of five times a number, and 1, is equal to four times the number

Mathematics

1 answer:

larisa86 [58]3 years ago

7 0

Answer:

5x + 1 = 4x

You can really put any letter for "a number":

5n + 1 = 4n

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Use synthetic division to determine f(-2) for the function f (x) = 9x^3 - 18x^2 - 16x + 32

evablogger [386]

Answer: -80

Step-by-step explanation:

7 0

2 years ago

Find the number of permutations in the word CIRCUS.

DerKrebs [107]

If the letters are considered distinct, then the number of permutations is $6!=720$ .

If we count either C as the same character, then we would be double-counting - to correct this, we would simply divided by the number of ways we can choose C from the available characters, or $\dfrac{6!}{2!}=360$ .

8 0

3 years ago

⅖ = ½ x<br> Explain your reasoning

fomenos

x = 4/5

2/5=1/2x

Step 1: Flip the equation.

1/2x=2/5

Step 2: Multiply both sides by 2.

2*(1/2x)=2*(2/5)x=4/5

4 0

2 years ago

Hello, i need help! <br> 5/2 multiplied by what equals 1? <br> equation: 5/2×?=1

prisoha [69]

Answer:

$\large\boxed{\dfrac{2}{5}}$

Step-by-step explanation:

$\text{The product of the number and its reciprocal gives us 1.}\\\text{Reciprocal of }\ \dfrac{5}{2}\ \text{is equal}\ \dfrac{2}{5}.\\\\\dfrac{5}{2}\times\dfrac{2}{5}=\dfrac{5\!\!\!\!\diagup}{2\!\!\!\!\diagup}\times\dfrac{2\!\!\!\!\diagup}{5\!\!\!\!\diagup}=\dfrac{1}{1}\times\dfrac{1}{1}=1\times1=1$

4 0

2 years ago

Bill changes £450 from his bank and gets $729.

Kobotan [32]

Answer:

Bill got more ($1.62) for each pound exchanged than did Gwyll ($1.56).

Step-by-step explanation:

Let's calculate the unit rate in each case, that is, the number of dollars obtained through exchanging one (1) pound for dollars:

Bill:

$729

--------- = $1.62 per pound

£450

Gwyll:

$780

---------- = $1.56 per pound

£500

Bill got more ($1.62) for each pound exchanged than did Gwyll ($1.56).

8 0

2 years ago