3 years ago

Write an expression that can be used to find 4x275 using mental math and properties of numbers

1 answer:

Vikki [24]3 years ago

8 0

4x200
4x70
4x5
then add it all together

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vlada-n [284]

Answer:

12x-39

Step-by-step explanation:

40-1=39

7 0

3 years ago

zepelin [54]

Answer:

Step-by-step explanation:

i). $\frac{48a^3}{6a}=\frac{6\times 8\times a\times a^2}{6a}$

$=\frac{6a}{6a}\times 8a^2$

= 8a²

ii). $\frac{72a^3b^4c^5}{8ab^2c^3}$ = $\frac{8\times 9\times a\times a^2\times b^2\times b^2\times c^2\times c^3}{8ab^2c^3}$

= $\frac{8ab^2c^3}{8ab^2c^3}\times 9a^2b^2c^2$

= 9a²b²c²

8 0

3 years ago

kakasveta [241]

The answer is for x is 5

4 0

3 years ago

malfutka [58]

3+(-5)x=19
Subtract 3 from both sides of the equation.
-5x= 16
Divide by -5 on both sides
X= -3.2

4 0

3 years ago

vredina [299]

Hey can you take another pic

5 0

3 years ago