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4 years ago

Plzzz help and show working out DONT JUST PUT THE ANSWER Ignore my working out

Mathematics

1 answer:

anygoal [31]4 years ago

3 0

$4(2x-1)+3(2x+5)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(4)(2x)+(4)(-1)+(3)(2x)+(3)(5)\\\\=8x-4+6x+15\qquad\text{combine like terms}\\\\=(8x+6x)+(-4+15)\\\\=\boxed{14x+11}$

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Area and estimate helpp

Vikki [24]

Sorry. It's not clear. Plz tell me if there is 12 3/8in?

5 0

3 years ago

Juan and Franco collect baseball cards. Juan has baseball cards. Franco has 18 fewer baseball cards than Juan. Together they hav

horsena [70]

Answer:

Franco has 66 baseball cards.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the number of baseball cards that Franco has.

y is the number of baseball cards that Juan has.

Franco has 18 fewer baseball cards than Juan.

This means that:

$x = y - 18$

Also:

$y = x + 18$

Together they have 150 baseball cards.

This means that:

$x + y = 150$

Since $y = x + 18$

$x + x + 18 = 150$

$2x = 132$

$x = \frac{132}{2}$

$x = 66$

Franco has 66 baseball cards.

8 0

3 years ago

What is the solution to the equation below? Round your answer to two decimal places.

vodka [1.7K]

Answer:

x = 0.5

Step-by-step explanation:

2(2x-1)=3

2(2x)+1=3

-1 -1

2(2x)=2 2x2=4

4x=2

4÷4 Cancels out the 4 in X

2÷4=0.5

Therefore

x = 0.5

4 0

3 years ago

Martha made a purchase for $70.20 including 8% sales tax.<br> What was the total before tax?

Oduvanchick [21]

Answer:

64.58

Step-by-step explanation:

100%-8%=92%

70.20*92%=64.58

3 0

3 years ago

Which is the graph of the function f(x) = -√x?

Virty [35]

Answer:

Step-by-step explanation:

The last (fourth) graph is that of the parent function y = √x. The negative sign in front of √x leads to reflection of this parent function graph in the x-axis. Thus, the correct graph of f(x) = -√x is the first one.

7 0

4 years ago

Plzzz help and show working out *DONT JUST PUT THE ANSWER* Ignore my working out

Plzzz help and show working out DONT JUST PUT THE ANSWER Ignore my working out