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2 years ago

Could someone please help me with this thank you very much

Mathematics

1 answer:

elena-s [515]2 years ago

8 0

Answer:

Answer for #10:

$y = 2 \: and \: x = 1$

Answer for #1:

$x = 2 \: and \: y = - 1$

Step-by-step explanation:

In order to solve a simultaneous equation using the substitution method you have to:

Use one of the equation and substitute it into the other equation, in this case equation B was substituted into equation A.

 $equ. \: a = (2x - 3y = 7) \\ equ. \: b = (x = 1 - y)$ 

Therefore since x = 1 - y, equation A would be:

$2(1 - y) - 3y = 7 \\ (2 - 2y) - 3y = 7 \\ - 2y - 3y = 7 - 2 \\ - 5y = 5 \\ y = - 1 \: and \: x = 2$

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A six-faced die is rolled .

STatiana [176]

Answer:

[A] 2/6

[B] 1/2

Step-by-step explanation:

Given:

A six-faced die is rolled .

To Find:

Find the probability of it landing on a value more than 4

Find the probability of it landing on an even number

Part A:

Knowing that a six-faced die has six number on it (1,2,3,4,5,6)

Thus, the probability of it landing on an value more than 4 is 2/6.

Because 5 and 6 is more than 4

Part B:

1,3,5 = Odd

2,4,6 = Even

Thus, the probability of it landing on an even number is 3/6 Simplify 1/2 . Which also is 50%.

~Lenvy~

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2 years ago

Marquis is hungry for pizza! He has a choice between pizza A: Half of a 16 inch pizza or pizza B: A whole 10 inch pizza to himse

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Answer:

The 10 inch one because half of 16 is 8 so he would only get 8 inches of pizza.

Step-by-step explanation:

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3 years ago

If a professional basketball player earns $3 million playing 125 games per year and plays an average of 40 minutes per game, how

Dmitry_Shevchenko [17]

The correct answer is D.

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4 years ago

Find the interest on $4,000 at 3% for 4 months

Sladkaya [172]

Step-by-step explanation:

✧ $\underline{ \underline{ \large{ \tt{G \: I \: V \: E \: N}}}} :$

Principal ( P ) = $ 4000
Rate ( R ) = 3 %
Time ( T ) = 4 months = $\ \frac{4}{12}$

✧ $\underline{ \underline{ \large{ \tt{ T \: O \: \: F\: I\: N \: D}}}} :$

Interest ( I )

✧ $\underline{ \underline{ \large{ \tt{S \: O \: L \: U \: T \: I \:O\: N}}}} :$

☂ $\boxed{ \large{ \sf{Interest \: ( \: I \: ) = \frac{PTR}{100}}}}$

~Plug the known values and then simplify !

➝ $\large{ \bf{ \frac{4000 \times \frac{4}{12} \times 3}{100} }}$

➝ $\large{ \bf{ \frac{4000}{100}}}$

➝ $\large{ \bf{ \frac{4 \: 0 \: \cancel{0 \: 0}}{1 \: \cancel{ 0 \: 0}}}}$

➝ $\boxed{ \large{ \bf{ \$ \: 40}}}$

⟿ $\boxed{ \boxed{ \underline{ \large{ \text{OUR \: FINAL \: ANSWER }: \boxed{ \underline{ \tt{ \$ \: 40}} }}}}}$

----------------------------------------------

☃ $\underline{ \text{Additional \: Info : }}$

Principal ( P ) : The money which is borrowed or deposited is called principal.
Interest ( I ) : The additional amount of money which is paid by borrower to the lender is called interest.
Time ( T ) : The duration of time for which principal is deposited or borrowed is termed as time period.
Rate ( R ) : The condition under which the interest is charged is called rate.
Amount ( A ) : The sum of principal and interest is called an amount.

Hope I helped ! ♡

Have a wonderful day / night ! ♕

Let me know if you have any questions regarding my answer ! ☄

☞ $\underline{ \underline{ \mathfrak{Carry \: On \: Learning}}}$ !! ✎

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6 0

3 years ago

PLZ HELP FAST

Digiron [165]

4 place holder zero will be needed

3 0

4 years ago