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3 years ago

Helpppp I need help.

Mathematics

2 answers:

mestny [16]3 years ago

8 0

What that person said

Inessa05 [86]3 years ago

6 0

<h3>Answer to Question 2:</h3>

The answer to question 2 is 8x - 37

Step-by-step explanation:

Firstly, do the distributive property to simplify the terms within the bracket.

4(2x + 10) -3 ---> 8x + 40 - 3

Next, combine like terms

8x + 40 - 3 ---> <u>8x - 37</u>

<h3>Answer to Question 3:</h3>

The answer to question 3 is 6(4c−3)

Step-by-step explanation:

Firstly, find the largest shared factor of 24 and 18, in the equation 24c−18

24: 1,2,3,4,6,8,12,24

18: 1,2,3,6,9,18

The largest between both of them is 6.

Next Step, divide both terms in the equation by 6.

24c−18 ---> 4c-3

Lastly, add brackets add a 6 on the outside of them.

4c-3 ---> 6(4c-3)

You might be interested in

A castle under siege has enough food for 300 men for 90 days. (Level 6) After 40 days, 150 men have left the castle.

Mama L [17]

Answer:

45 days

Step-by-step explanation:

300 men = 90 days

the percentage of food consumed by one man

= ( 90 / 300 ) * 100

= 30% = 0.3

After 40 days

150 men remain to consume at 30%

determine the number of days the remaining food will last ( x )

= x / 150 = 0.3

therefore ; X = 150 * 0.3 = 45 days

7 0

3 years ago

Simplify expression please thank you

Nataly_w [17]

Answer:

$f(x)=-63xy^8$

Step-by-step explanation:

$f(x)=(-9x^4y^6)(7x^{-3}y^2)$

$f(x)=(-63x^{4-3}y^{6+2})$

$f(x)=-63xy^8$

7 0

3 years ago

What is the Area of 4, and 9

Free_Kalibri [48]

The area of 4 and 9 is 36 because you multiply the width and length

5 0

4 years ago

Read 2 more answers

Colton and Gage were building a castle together. Colton was 5 times as fast at building the castle than Gage. If it takes 120 bl

ira [324]

Answer:

100 blocks.

Step-by-step explanation:

Let x represent number of blocks built by Gage.

We have been given that Colton was 5 times as fast at building the castle than Gage, so number of blocks built by Colton would be $5x$ .

We are also told that it takes 120 blocks to build the castle. Since Colton and Gage were building a castle together, so number of blocks built by both will be equal to 120.

$x+5x=120$

$6x=120$

$\frac{6x}{6}=\frac{120}{6}$

$x=20$

Number of blocks built by Colton: $5x=5\cdot 20=100$ .

Therefore, Colton had build 100 blocks.

5 0

3 years ago

Use algebra to solve 3x+4 = 1/x<br> The exact solutions are x=<br> Х

skad [1K]

Answer:

Ignore the A before the ±, it wouldn't let me type it correctly.

$x=\frac{2±\sqrt{7} }{3}$

Step-by-step explanation:

3x + 4 = 1 ÷ x

3x + 4 - 4 = 1 ÷ x - 4

3x = 1 ÷ x - 4

$3x=\frac{1}{x} +\frac{x(-4)}{x}$

$3x=\frac{1+x(-4)}{x}$

$3x=\frac{1-4x}{x}$

$x(3x)=x(\frac{1-4x}{x})$

x · 3x = - 4x + 1

3x² = - 4x + 1

3x² - (- 4x + 1) = 0

3x² + 4x - 1 = 0

Ignore the A before the ±, it wouldn't let me type it correctly.

$x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

a = 3

b = 4

c = - 1

$x=\frac{-4±\sqrt{4^{2}-4((3)(-1)) } }{2(3)}$

$x=\frac{-4±\sqrt{16-4((3)(-1)) } }{2(3)}$

$x=\frac{-4±\sqrt{16+12 } }{2(3)}$

$x=\frac{-4±\sqrt{28 } }{2(3)}$

$x=\frac{-4±\sqrt{(2)(14) } }{2(3)}$

$x=\frac{-4±\sqrt{(2)(2)(7) } }{2(3)}$

$x=\frac{-4±\sqrt{2 } \sqrt{2}\sqrt{7} }{2(3)}$

$x=\frac{-4±2\sqrt{7} }{2(3)}$

$x=\frac{-4±2\sqrt{7} }{6}$

Two separate equations

$x=\frac{-4+2\sqrt{7} }{6}$

$x=\frac{2+\sqrt{7} }{3}$

$x=\frac{-4-2\sqrt{7} }{6}$

$x=\frac{2-\sqrt{7} }{3}$

7 0

3 years ago