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Eduardwww [97]
3 years ago
15

How can you use 4s facts to find 7x8? Give the product in your explanation

Mathematics
2 answers:
Tatiana [17]3 years ago
8 0

Answer:

56

Step-by-step explanation:

8 is 4 times 2, and 2*7 is easier than 8*7. Now we just need 4*14.

4*14 is just 4*10 + 4*4, or 40+4*4.

Now just skip count to find 4*4 which is 16.

40+16 is 56.

alexgriva [62]3 years ago
5 0

7  \times 8 = 56
I don't know 4s mean but yeah
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miss Akunina [59]

Answer:

I can help with Q "4" as -

It uses triangle congruence test -  here we use - SAS, as

one side is equal as it is given

both the  angles are 90 degree

and they share a same side

so -

8x = 6x + 5

8x - 6x = 5

2x = 5

x = 2.5

RU = 6x+ 5 = 6 (2.5) + 5 = 20

( I am not so sure but I think this is the answer )

3 0
3 years ago
A bike rental company charges a fee per hour. The charge, in dollars, is the same each hour. The ordered pairs (3, 13.50) and (5
olchik [2.2K]

If the function is y = 4.5x. Then the rate of change of the function expressed as a unit rate will be 4.5.

<h3>What is the linear system?</h3>

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

A bike rental company charges a fee per hour.

The charge, in dollars, is the same each hour.

The ordered pairs (3, 13.50) and (5, 22.50) represent the corresponding hours, x, and cost, y.

Then the linear equation is given as

\begin{aligned} \rm  y - 22.5 &= \rm \dfrac{22.5 - 13.5}{5 - 3} (x-  5)\\\\\rm y - 22.5 &= \rm 4.5x - 22.5\\\\\rm y &= \rm 4.5x \end

Then the rate of change of the function expressed as a unit rate will be

\rm \dfrac{dy}{dx}  = \dfrac{d}{dx} (4.5x )\\\\\dfrac{dy}{dx}  = 4.5

More about the linear system link is given below.

brainly.com/question/20379472

#SPJ1

7 0
2 years ago
What is the linear factor
Effectus [21]

Answer:

The linear factors of a polynomial are the first-degree equations that are the building blocks of more complex and higher-order polynomials

Step-by-step explanation:

4 0
3 years ago
PLSSSS HELP MEEE WITH THISSSS
VashaNatasha [74]

Answer:

x=-6 y=-26

Step-by-step explanation:

in the first is -4 every time, in the second is -20 every time

7 0
3 years ago
The diameter of the circular base of a spot is 6 inches what is the closet approximation of the area base
AlladinOne [14]

Answer:

A≈28.26 in^2

Step-by-step explanation:

We know the diameter is 6

We can find the radius

r = d/2

r =6/2 =3 inches

The area of a circle is given by

A = pi *r^2

A = pi*3^2

A = pi*9

We will use 3.14 to approximate pi

A ≅(3.14) *9

A≈28.26 in^2

4 0
3 years ago
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