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3 years ago

“One third of a number is 12 less than the number itself”

1 answer:

8 0

let 'N' be a substitute for a number example 1/3(n)=n-12 then now we can multiply by 3 so we can get it n=3n-36 now get n onto the same side of the equation so we get 2n=36.after that divide by 2 we get n=18.

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Find the zeros of the function. 9x^2-36=0 I've gotten half way right up to 9(x^2-4)=0

Airida [17]

Answer:

x = ±2

Step-by-step explanation:

9x^2-36=0

Using the square root property

9x^2 = 36

Divide each side by 9

x^2 = 4

Take the square root of each side

sqrt(x^2) = sqrt(4)

x = ±2

7 0

3 years ago

B) Raj bought $3.63 worth of raisins. What was the mass in grams? Give two possible answers.

Romashka [77]

Answer:

how much is 1 gram of raisins worth in money

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The average score of 100 students taking a statistics final was 70 with a standard deviation of 7. Assuming a normal distributio

san4es73 [151]

Answer:

74.72

Step-by-step explanation:

Given

mean $\left ( \mu \right )=70$

Standard deviation $\left ( \sigma \right )=7$

For Top 25%

$P\left ( Z$

and Z value for 75 % is 0.6744

Thus score which separates the Top 25% of students is

$=\mu +\sigma \cdot Z$

$=70+7\cdot 0.6744=74.7208$

8 0

3 years ago

Solve for x????????????????????

12345 [234]

$\huge \tt \color{pink}{A}\color{blue}{n}\color{red}{s}\color{green}{w}\color{grey}{e}\color{purple}{r }$

$\large\underline{ \boxed{ \sf{✰\: Concept }}}$

➣ Given two paris are linear pairs
➣ We know that sum of linear pairs is equal to 180⁰
➣ Linear :- Having the form of a line; straight or roughly straight; following a direct course.

$\large\underline{ \boxed{ \sf{✛\: Assumptions\:✛ }}}$

➣ let given two angles be p and q that is
➣ angle p is 3x-4
➣ angle q is 3x-8
➣ we have to find "x" in the given expressions

$\large\underline{ \boxed{ \sf{✰\: let's\:solve }}}$

$\rm\angle \: p + \angle \: q = 180 \degree \\$

★ Substituting values

$\rm { \pink➾ \:( 3x - 4) + (3x - 8) = 180} \\ \rm { \pink➾}arranging \: and \: solving \: like \: terms \\ \rm { \pink➾ \: 3x + 3x - 4 - 8 = 180} \\ \rm { \pink➾ \: 6x - 12 = 180} \\ \rm { \pink➾6x = 180 + 12}$