All categories

2 years ago

What is 4/5 x 5 + 2.5 I really need help

Mathematics

2 answers:

neonofarm [45]2 years ago

8 0

<h2><em>Answer: The answer is 6.5!</em></h2>

<h2><em>Step-by-step explanation:</em></h2><h2>Just multiply 4/5 x 5 then your answer will be 4. Then add 2.5 + 4 then you will get 6.5! </h2><h2 /><h2>Hope This Helps! Have a nice day and eat a full Meal and drink some Water today!</h2>

Alex73 [517]2 years ago

4 0

Answer:

6.5

Step-by-step explanation:

You might be interested in

A car is moving at a average speed of 56 hole 3/5 km per hours . How much distance will it cover in 7 hole 1/2 hours?

vovikov84 [41]

Answer:

3.5km

Step-by-step explanation:

not sure but this is how I'll do it tho

distance= 7 x 1/2 = 3.5 (km)

5 0

2 years ago

Ann is adding water to a swimming pool at a constant rate. The table below shows the amount of water in the pool after different

N76 [4]

Answer:

(a) As time increases, the amount of water in the pool increases.

11 gallons per minute

(b) 65 gallons

Step-by-step explanation:

From inspection of the table, we can see that <u>as time increases, the amount of water in the pool increases</u>.

We are told that Ann adds water at a constant rate. Therefore, this can be modeled as a linear function.

The rate at which the water is increasing is the <em>rate of change</em> (which is also the <em>slope </em>of a linear function).

Choose 2 ordered pairs from the table:

$\textsf{let}\:(x_1,y_1)=(8, 153)$

$\textsf{let}\:(x_2,y_2)=(12,197)$

Input these into the slope formula:

$\textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{197-153}{12-8}=\dfrac{44}{4}=11$

Therefore, the rate at which the water in the pool is increasing is:

<u>11 gallons per minute</u>

To find the amount of water that was already in the pool when Ann started adding water, we need to create a linear equation using the found slope and one of the ordered pairs with the point-slope formula:

$y-y_1=m(x-x_1)$

$\implies y-153=11(x-8)$

$\implies y-153=11x-88$

$\implies y=11x-88+153$

$\implies y=11x+65$

When Ann had added no water, x = 0. Therefore,

$y=11(0)+65$

$y=65$

So there was <u>65 gallons</u> of water in the pool before Ann starting adding water.

3 0

2 years ago

Read 2 more answers

Multiple Choice Question

yan [13]

I believe the right answer is B!

7 0

3 years ago

Read 2 more answers

PLEASE HELP

Neko [114]

Answer:

55.5 square feet

Step-by-step explanation:

so the dog house consists of 4 walls, two roof sections, and two triangle bits to make the roof pointy (I'm sure they have a name but I don't know what it is lol) Of the walls there would be 2 of the longer walls and 2 of the shorther ones. Knowing this we just have to add together the area of each part to find the total surface area.

So starting with the walls:

two of them are 4 feet by 2 feet.

The area of a rectangle is just length x width

so those two would have an area of 8 ft^2

and the other two are 3 feet by 2 feet so they would have an area of 6 ft^2

the roof sections are also rectangles with dimensions of 4 feet by 2.5 feet

4x2.5=10 so each side of the roof has a surface area of 10 ft^2

now the triangle parts have a base of 3 feet and a height of 2.5 feet

the formula for area of a triangle is base x height / 2

3x2.5=7.5

7.5/2= 3.75

now we add them together

8+8+6+6+10+10+3.75+3.75=55.5

so the total surface area is 55.5 square ft

8 0

2 years ago

Multiplication scale

DerKrebs [107]

Answer:

here is a multiplication scale

Step-by-step explanation:

8 0

2 years ago