Write an equivalent expression for n x a using only addition

Answers

Answer 1

Answer: little more details. please

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A contractors crew can frame 3 houses in a week. How long will it take them to frame 54 houses if they frame the same number each week?

Answers

54 divide by 3 then you get 18weeks

Solve the following equation. 3(4x−7)=27

Answers

12x - 21 = 27
12x = 27 + 21
12x = 48
x = 48/12
x = 4

3*4x=12x 3*-7=-21 12x-21=27 +21 +21 12x=48 12x/12 = 48/12 X=4

(4-3√3)(2-√3)???? (the question marks signal the gap between the question and then me starting to distribute)4(2-√3)-3√3(2-√3)
I get stuck here!! Please help

Answers

You have two binomials. I would just FOIL them:

First:   4 x 2 = 8

Outside: 4 (-√3) = -4√3

Inside:   -3√3 (2) = -6√3

Last:   -3√3 (-√3) = 9

Addummup: 8 - 4√3 - -6√3 + 9 = 17 - 10√3

(4-3√3)(2-√3)
(4 - 3√3)(2 - √3) -> 4 x 2 = 8
(4 - 3√3)(2 - √3) -> -3√3 x 2 = -6√3
(4 - 3√3)(2 - √3) -> 4 x -√3 = -4√3
(4 - 3√3)(2 - √3) -> -3√3 x -√3 = 3√3 x √3 = √9√3 x √3 = √27 x √3 = √81 = 9

∴ (4-3√3)(2-√3) = 8 - 6√3 - 4√3 + 9

8 - 6√3 - 4√3 + 9
= 17 - 6√3 - 4√3
= 17 + (- 6 - 4)√3
= 17 - 10√3

Without decimals, you cannot go any further.
Tell me if I was confusing at all :)

UPDATED... AGAIN...

Reduced ratio of 2:10:14

Answers

Answer:
1:5:7

Explanation:
A reduced ratio means that the ratio has a greatest common factor that the numbers in the ratio can divide by for simple whole numbers. In this case, the GCF (greatest common factor) is 2 because all of the numbers are divisible by 2. After dividing 2:10:14 by 2, you get 1:5:7.

1:5:7 because if you divide each by two you get that as an answer

What is the slope of the line x = -1?Choose 1 answer:
-1
1
0
Undefined

Answers

Answer:

slope is 0

Step-by-step explanation:

x= -1 means that the x-intercept is -1

undefined means n/0 , it is a vertical line

for u to get the answer as 0 it is like 0/n

Answer:

tytyryr that's your answer

Step-by-step explanation:

Find the lateral area of the regular prism with height h, if the base of the prism is: Equilateral triangle with the side 4 cm and h=2.5 cm

Answers

Equilateral triangle with the side 4 cm and h=2.5 cm

In equilateral triangle all sides are equal

so all sides are equal in the base of the prism

lateral area of the prism = Perimeter of the base * height

Perimeter of the base equilateral triangle = side + side + side

lateral area of the prism =(side + side + side) * height

= (4+4+4) * 2.5

= $30 cm^2$

lateral area of the prism = $30 cm^2$

Answer:

30 cm^2

Step-by-step explanation:

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