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3 years ago

The output of a function is 5 more than -2 times the input. Write and solve an equation to find the input when the output is 11

Mathematics

1 answer:

Law Incorporation [45]3 years ago

7 0

Answer:

17 is x=6.

Step-by-step explanation:k

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Brianna and Chloe go to the movie theater and purchase refreshments for their friends.

steposvetlana [31]

Answer:

3 m + 4 n = $24.25

9 m + n = $37.00 are the required set of equations.

The cost of 1 cold drink = $3.75

The cost of 1 pop corn bag = $3.25

Step-by-step explanation:

Let us assume the cost of 1 drink = $ m

And the cost of 1 bag of popcorn = $ n

Now, Brianna buys 3 drinks + 4 bag popcorn for $24.25

⇒ Cost of 3 drinks + 4 bag popcorn = $ 24.25

or, 3 ( Cost of 1 drink) + 4 ( Cost of i bag popcorn) = $ 24.25

⇒ 3 m + 4 n = $24.25 ... (1)

Also, Chloe buys 9 drinks + 1 bag popcorn for $37.00

⇒ Cost of 9 drinks + 1 bag popcorn = $37.00

or, 9 ( Cost of 1 drink) + 1 ( Cost of 1 bag popcorn) = $37.00

⇒ 9 m + n = $37.00 ... (2)

Now, solving equation (1) and (2) ,we get:

3 m + 4 n = $24.25

9 m + n = $37.00 ⇒ n = 37 - 9 m

Substitute the value of n in the equation (1),we get:

3 m + 4 n = $24.25 ⇒ 3 m + 4 ( 37 - 9 m ) = 24.25

or, 3 m + 148 - 36 m = 24.25

or, -33 m = -123.75

or, m = 123.75/33 = 3.75, or m = 3.75

Now, n = 37 - 9 m = 37 - 9(3.75) = 3.25, or n = 3.25

Hence the cost of 1 cold drink = m = $3.75

And the cost of 1 pop corn bag = n = $3.25

3 0

3 years ago

A farmer has 113 sheep. 47 of them are males. How many more female sheep are there than male sheep?

laiz [17]

Considering the rest of the sheep are females, you just subtract 47 from 113.

6 0

3 years ago

What is the simplified value of the expression below?<br><br> Negative 2.6 + 5.8

Katen [24]

8.4 )::::: I think sorry

5 0

3 years ago

Read 2 more answers

A shipment of 40 fancy calculators contains 3 defective units. What is the probability if a college bookstore buys 20 calculator

JulsSmile [24]

Answer:

38.46%

Step-by-step explanation:

There are no names or marking that can make the calculator look different, so the order is not important. Then we should use a combination to solve this problem.

There are 40 calculators in one shipment, 37 of them good items and 3 of them are defect items. We need to choose 19 good calculators and 1 defect calculator. The number of ways to do that will be:

$\frac{37}{19}$ * $\frac{3}{1}$ = 37! $\frac{37!}{19!(37-19!)} * \frac{3!}{1!(3-1)!}$ = 53017895700