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posledela
2 years ago
10

18 is 4.5 times a number.

Mathematics
2 answers:
ch4aika [34]2 years ago
8 0
Answer: 4
Explanation: Just divide 18 by 4.5, replace 18 and 4.5 with any number, you can use a calculator.
Bumek [7]2 years ago
4 0

Answer:

4

Step-by-step explanation:

18/4.5=4

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Using the quadratic formula to solve 7x2 -x = 7, what are the values of x?
Sunny_sXe [5.5K]

Answer:

x=-7

Step-by-step explanation:

7x2-x=7

7x2=14.

14-x=7

When you finished the last step, you will subtract 14 to both sides.

14-x=7

14-14-x=7-14

this will cancel out the 14 on the left.

And will leave you with:

-x=7-14

7-14 is -7.

and this will get you to

-x=-7

To finish this off, you have to turn the negative x/variable, into a positive x/variable.

So, you will divide both sides of the equation by the same term.

-x = -7

into

\frac{-x}{1} =\frac{-7}{1}

and it will be -7.

I hope this helps      :)

8 0
2 years ago
This is freshman year math or algebra 1 please help me solve. <br><br><br> w=2hx-11x
Nesterboy [21]
What is there to solve 
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5 0
2 years ago
What is the answer pls
Anon25 [30]

Answer:

7.375 ib.

Step-by-step explanation:

You just add it all together

3 0
2 years ago
Please help, i forgot which was which... (positive or negative coefficient)
Vesna [10]
<h3>Answer:  Negative</h3>

Reason:

The template y = ax^2+bx+c applies to any quadratic to graph out a parabola. The coefficient for the x^2 term is 'a', and it solely determines whether the parabola opens upward or downward.

If 'a' is negative, then the parabola opens downward. The way to remember this is that 'a' being negative forms a negative frown.

On the other hand if 'a' is positive, then it forms a positive smile, and the parabola opens upward.

In this case, the points are fairly close to a parabola opening downward. This means 'a' is negative and a < 0.

8 0
1 year ago
Tennis balls cost 7$ for a can of 3. Steve gives the cashier $40 to buy balls and receives $12 in change. How many tennis balls
Keith_Richards [23]
4 cans. 12 tennis balls.
6 0
3 years ago
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