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Scorpion4ik [409]
3 years ago
8

Solve by solution y=1/2x+6 and y=4x-1

Mathematics
1 answer:
12345 [234]3 years ago
3 0
Each equation equal y, right? So you can substitute 1/2x+6 for y in y=4x-1 (or 4x-1 in y=1/2x+6). Either way, you'll end up with 4x-1=1/2x+6. Then, you just solve for x.
4x-1=1/2x+6
3.5x=5
x=5/3.5
I would suggest leaving it in fraction form considering if you translate it to decimal form it will be a less precise answer.
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Please help!
Sindrei [870]

Answer:

D. Subtraction property of equality

B. 6.5

Step-by-step explanation:

First blank:

The equation is x + 6.5 = 13.

To solve the equation, you want x alone on the left side, showing "x = some number." Since 6.5 is being added to x, you need to SUBTRACT 6.5. You must do the same operation to both sides of an equation, so you need to SUBTRACT 6.5 from both sides of the equation. What allows you to subtract the same number from both sides of an equation is the

<em>D. Subtraction property of equality </em>

Second blank:

Subtract 6.5 from both sides.

x + 6.5 = 13

x + 6.5 - 6.5 = 13 - 6.5

x = 6.5

<em>Answer: B. 6.5</em>

4 0
3 years ago
PLZ HELP ME I HATE CRICLE GRAPHS AND I NEED TO GET THIS DONE PLZ HELP ME
nirvana33 [79]

Answer:

the answer is 2,500

Step-by-step explanation:

7 0
3 years ago
Rafael buys a video game for $49.95. The sales tax rate is 6.5%. What is her total cost , including tax, to the nearest dollar?
WINSTONCH [101]
I think this is you answer 49.95+3.2474


3 0
4 years ago
A pizza restaurant markets 3 versions of its Crazy Combo: Combo 1 contains
worty [1.4K]

Answer:

Step-by-step explanation:

combo 1 : 3 cheese and 1 pepperoni

combo 2: 2 cheese and 2 pepperoni

combo 3: 1 cheese and 3 pepperoni

he chooses :

5 combo 1's : so thats (5 * 3) = 15 cheese, (5 * 1) = 5 pepperoni

2 combo 2's.....(2*2) = 4 cheese and (2 * 2) = 4 pepperoni

3 combo 3's....3(3 * 1) = 3 cheese and (3 * 3) = 9 pepperoni

added = a total of 22 cheese and 18 pepperoni....thats 40 pizzas

so the probability that he will randomly pick a pepperoni is 18/40 which reduces to 9/20

the probability that he will pick a cheese is 22/40 which reduces to 11/20

so ur answer is D. <===

8 0
4 years ago
At the circus, a clown is shot from a cannon. This situation can be modeled by the function: h = – 16t2 + 45t + 15, where 'h' is
EastWind [94]

Answer:

t = 3.11 seconds

Step-by-step explanation:

Given that,

At the circus, a clown is shot from a cannon. This situation can be modeled by the function :

h = -16t^2 + 45t + 15

Where

'h' is height in feet and 't' is time in seconds

We need to find how long did it take for the clown to reach his highest point. It can be calculated as follows :

-16t^2 + 45t + 15=0

We need to solve for t. It can be calculated as follows :

t=\dfrac{-45\pm \sqrt{45^2-4(-16)(15)} }{2(-16)}\\\\t=-0.301\ \text{and}\ 3.11\ s

So, the required time is 3.11 seconds.

8 0
3 years ago
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