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3 years ago

Whats the answer to 7x10¹=7x10=

Mathematics

1 answer:

tekilochka [14]3 years ago

7 0

The answer to 7×10 is 70. Multiplication is fast adding. For example, 10+10+10+10+10+10+10=70

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What is the reason for each step in the solution of the equation?

MA_775_DIABLO [31]

<span>2x-1=4(x+1) Given. This is the expression you were originally given. 2x-1=4x+4 Distributive Property You distributed the 4 in the subexpression 4(x + 1) to make 4x + 4 2x=4x+5 Addition or Subtraction Property of Equality You added 1 to both sides of the equation. â’2x=5 Addition or Subtraction Property of Equality You subtracted 4x from both sides of the equation. x=-5/2 Multiplication or Division Property of Equality You divided both sides by -2.</span>

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3 years ago

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3) 75% of the customers shopping, on line yesterday afternoon were women. If there were 584

kiruha [24]

438 women were there yesterday

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3 years ago

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How do we solve this?

Harlamova29_29 [7]

Answer:

B is (3, 10)

Step-by-step explanation:

The midpoint of coordinates of the 2 points (x1, y1( and (x2, y2) is

(x1 + x^2) / 2 , (y1 + y2)/2.

So if (x, y) are the coordinates of B we have:

(7 + x)/2 + (2 + y)/2 = 5 + 6

So 7 + x = 2*5 so x = 3

AND 2 + Y = 12 SO y = 10.

4 0

3 years ago

Tom, John and Harry went for lunch to a restaurant. Tom had $100 with him, John had $60 and Harry had $409. They got a bill for

Alex

The amount of money which Tom paid more than Harry paid is 36.

7 0

3 years ago

If A2 = I, where I is the identity matrix, which matrix correctly represents matrix A?

natali 33 [55]

We know that $\boldsymbol{A^2}=\boldsymbol{A\times A}$

We also know that $\boldsymbol{I}=\begin{bmatrix} 1 &0 \\ 0&1 \end{bmatrix}$

Now, it has been given to us that $\boldsymbol{A^2}=\boldsymbol{I}$

Therefore, we will have to find the correct $\boldsymbol{A}$ from the given options and we find that when:

$\boldsymbol{A}=\begin{bmatrix} 3 &-2 \\ 4&-3 \end{bmatrix}$

then $\boldsymbol{A^2}=\boldsymbol{A\times A}=\begin{bmatrix} 3 &-2 \\ 4&-3 \end{bmatrix}\times \begin{bmatrix} 3 &-2 \\ 4&-3 \end{bmatrix}=\begin{bmatrix} 1 & 0\\ 0 & 1 \end{bmatrix}$

Therefore, from the above given options, Option C is the correct option.

Therefore, $\boldsymbol{A}=\begin{bmatrix} 3 & -2\\ 4 & -3 \end{bmatrix}$ is the correct answer.

7 0

3 years ago