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2 years ago

Luke divided 16.80 by 2.5 as shown, but he forgot to put the decimal point in the answer.

Mathematics

1 answer:

Rufina [12.5K]2 years ago

7 0

Answer:

Step-by-step explanation:

The decimal point should be placed between the digits 8 and 0 because the quotient should be greater than 18÷3 and less than 21÷3.

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F(x) = -x^2 + 5x – 2 Find f(-4)

disa [49]

Answer:

Step-by-step explanation:

if f(4), than -4^2=-16

5(4)=20

-16+20-2=2

8 0

2 years ago

An item is regularly priced at $40. It is now priced at a discount of 40% off the regular price. What is the price now?

Andreyy89

After discount, the price of the item is $24.00

8 0

3 years ago

Paul and Charlene are 420 miles apart. They start toward each other with Paul driving 16 mph faster than Charlene. They meet in

Thepotemich [5.8K]

Answer:

34 mph.

Step-by-step explanation:

Let x be speed of Charlene, then speed of Paul will be x+16 as we are given that Paul is driving 16 mph faster than Charlene.

Let y be distance covered by Charlene, then distance covered by Paul will be 420-y.

Now we will use formula $\text{Speed}=\frac{\text{Distance}}{\text{Time}}$ . Upon using our given information we will get two equation and two unknowns as:

$x+16=\frac{420-y}{5}...(1)$

$x=\frac{y}{5}...(2)$

Upon substituting $x=\frac{y}{5}$ in 1st equation we will get,

$\frac{y}{5}+16=\frac{420-y}{5}$

Upon multiplying both sides of our equation by 5 we will get,

$5(\frac{y}{5}+16)=420-y$

$5\times\frac{y}{5}+5\times 16=420-y$

$y+80=420-y$

$y+80+y=420-y+y$

$2y+80=420$

$2y=420-80$

$2y=340$

$y=\frac{340}{2}$

$y=170$

Upon substituting y=170 in 2nd equation we will get,

$x=\frac{170}{5}$

$x=34$

Therefore, Charlene's speed is 34 miles per hour.

6 0

2 years ago

Please answer correctly, will mark brainliest

Helga [31]

Answer:

32.8

Step-by-step explanation:

C^2 - B^2 = A^2

34.6 ^2 - 11^2 = A^2

1197.16 - 121 = A^2

1076.16 = A^2

4 0

2 years ago

Rafael must choose a number between 67 and 113 that is a multiple of, 2,4, and 5 . Write all the numbers that he could choose.

skelet666 [1.2K]

First, find out what the greatest common factor is between 2, 4, and 5.

This is 20. So any number divisible by 20 is also divisible by 2, 4, and 5. 

Now we find the list of numbers that are multiples of 20 between 67 and 113. 

The solutions are: 

80 and 100.

5 0

3 years ago