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Zielflug [23.3K]
3 years ago
6

Lified expression for 2(X-5)?

Mathematics
1 answer:
Marina CMI [18]3 years ago
8 0

Answer:

This, simplified would be 2x-10

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If f (x) - 3(x + 5) +-, what is f(a + 2)?
sergey [27]

Answer:

A

Step-by-step explanation:

Just plug in x=a+2.

4 0
3 years ago
Help fast !!!!!!!!!!!
Semmy [17]

Answer:

tbh I think its the middle one

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Help me please!!!!!!
lara [203]

Answer:

a. b=2

b. b = 2a

c. a = \frac{1}{2}b\\

d. b = 10

Step-by-step explanation:

Gradient is just another similar term for slope l, m, and it can be calculated by m = \frac{y_2 -y_1}{x_2 -x_1}\\ where x_n and 1y_n is the xy-coordinates of point n

We let (0,0) be point 1 and (a,b) be point 2, we can then write the equation:

m = \frac{b -0}{a -0}\\ m = \frac{b}{a}.

It also says that the points are with a gradient of 2 so m = 2. We can then write the equation:

2 = \frac{b}{a}\\

Finding bIf a = 1:

2 = \frac{b}{a} \\ 2 = \frac{b}{1} \\ 2 = b \\ b = 2

Writing an expression for b in terms of a.

2 = \frac{b}{a} \\ \frac{b}{a} = 2 \\ \frac{b}{a} \times a = 2 \times a \\ b = 2a

Writing an expression for a in terms of b

2 = \frac{b}{a} \\ \frac{b}{a} = 2 \\ \frac{a}{b} = \frac{1}{2} \\ \frac{a}{b} \times b = \frac{1}{2} \times b \\ a = \frac{1}{2}b

Finding b if a = 5

2 = \frac{b}{a} \\ 2 = \frac{b}{5} \\ \frac{b}{5} = 2 \\ \frac{b}{5} \times 5 = 2 \times 5 \\ b = 10

4 0
3 years ago
Bruce saved $ 35.00 to buy a new video game. The game's original price was $ 42.00 , but it was on sale for 30% off. The sales t
Brilliant_brown [7]

Bruce have $35 which is greater than amount to be paid i.e. $30.87 . So , Bruce have enough money to buy the game .

<u>Step-by-step explanation:</u>

Here we have , Bruce saved $ 35.00 to buy a new video game. The game's original price was $ 42.00 , but it was on sale for 30% off. The sales tax rate was 5%.  We need to find Did Bruce have enough money to buy the game .Let's find out:

We have , Bruce saved $ 35.00 to buy a new video game . The game's original price was $ 42.00 , but it was on sale for 30% off. i.e.

Price = Original price - \frac{Original-price(30)}{100}

⇒ 42-\frac{42(30)}{100}

⇒ 42-\frac{1260}{100}

⇒ 42-12.6

⇒ 29.4

Now,  The sales tax rate was 5%. So , total amount to be paid is :

⇒ 29.4 + \frac{29.4(5)}{100}

⇒ 29.40 +1.47

⇒ 30.87

Bruce have $35 which is greater than amount to be paid i.e. $30.87 . So , Bruce have enough money to buy the game .

4 0
3 years ago
-3/4 x 2/5 = Simplify response
Andre45 [30]
Exact Form:
−3/10
Decimal Form:
−0.3
3 0
3 years ago
Read 2 more answers
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