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pishuonlain [190]
3 years ago
5

Alfred made 21 goals in 3.5 minutes. What is the unit rate?

Mathematics
2 answers:
IRISSAK [1]3 years ago
6 0
6
21 divided by 3.1 is 6
nekit [7.7K]3 years ago
5 0
21 to 3.5
goals to minutes
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Karim is ordering video games. Each game costs $39.99, and there is a $4.85 shipping charge per order. How much will it cost him
weqwewe [10]
Given:
Cost of a game = $39.99
Shipping charge = $4.85
Let,
number of video games be "n"
Now,
total cost = (cost of each game * total no. of games) + shipping charge
               = $39.99n + $4.85

So, you use the above equation to find the total cost of video games.
7 0
3 years ago
How many times does 42 going to 96
anygoal [31]

Answer:

As a whole number, 2.

As a whole number with a remainder, 2 R12.

Precisely 2.28571429 if you want to get specific.

Step-by-step explanation:

96 ÷ 42 = 2 R12

or

96 ÷ 42 = 2.28571429

Hope this helps! :)

3 0
3 years ago
Read 2 more answers
Solve 2x2 + 20x = −38. (1 point)
RoseWind [281]

Answer:

The solutions are x=-5+\sqrt{6}  and x=-5-\sqrt{6}


Step-by-step explanation:

we have

2x^{2} +20x=-38

Divide by 2 both sides

x^{2} +10x=-19 ------> x^{2} +10x+19=0

we know that


The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to


x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}


in this problem we have


x^{2} +10x+19=0

so


a=1\\b=10\\c=19


substitute

x=\frac{-10(+/-)\sqrt{10^{2}-4(1)(19)}}{2(1)}


x=\frac{-10(+/-)\sqrt{100-76}}{2}


x=\frac{-10(+/-)\sqrt{24}}{2}


x=\frac{-10(+/-)2\sqrt{6}}{2}


x1=\frac{-10(+)2\sqrt{6}}{2}=-5+\sqrt{6}


x2=\frac{-10(-)2\sqrt{6}}{2}=-5-\sqrt{6}


8 0
3 years ago
Read 2 more answers
7th grade math help me please :(.
Anettt [7]
6a: 11x+9
6b: 5y+14
6c: -3c-10
6d: 15x+10y
6e: -2n+13n
6f: 5w-5z
6g: 19x+8y+9
6h: 11a+4b-5

hope this helps and is correct!!
8 0
3 years ago
If n=4, the value of the expression 28-12 + Vn 2 is<br> 15<br> 17<br> 21 helpppppppp
ollegr [7]

Answer:

17

Step-by-step explanation:

3 0
2 years ago
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