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Goshia [24]
2 years ago
9

a sports store sells three different packs of tennis balls. which pack is the best to buy? 4 sleeves for 11.49, 6 sleeves for 16

.79, 9 sleeves for 22.99​
Mathematics
1 answer:
PIT_PIT [208]2 years ago
6 0

Answer:

9 sleeves for 22.99

Step-by-step explanation

The first pack has a unit rate of $11.49/ 4 balls

=$2.8725

The second pack has a unit rate of $16.79/6balls

=$2.798 per ball

the third pack has a unit rate of $22.99/9balls

=2.554

So, I would definitely go for the third pack since it has the least cost.

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If a number is divisible by 2,5,9 what is one digit of the number
Fudgin [204]

Answer:

the lcm of the three factors will be one digit of the number

Step-by-step explanation:

4 0
3 years ago
Find the equation of a line that is perpendicular line to y = 10x - 45 and goes through (1, 1).
Airida [17]

The line y = 10x - 45 is already written in the y = mx+q form. This means that m is the slope. If two lines are perpendicular, their slopes are the anti-inverse of each other, i.e. their product is -1.

So, our perpendicular line has a slope of -\frac{1}{10}

Finally, we want a line passing through (1,1) with slope -\frac{1}{10}:

y-1 = -\dfrac{1}{10}(x-1) \iff y = -\dfrac{x}{10} + \dfrac{1}{10}+1 = -\dfrac{x}{10} + \dfrac{11}{10}

7 0
3 years ago
I NEED HELP PLEASE EXPLAIN
kari74 [83]

Answer:

The function concerning the evolution of the value of the first car is exponential and the one concerrning the value of the second car is linear

Step-by-step explanation:

1st car's drop in value ( not considering the second hand type of drop):

1.4500$

2.4050$

3.3645$

2nd car's value is dropping 3000$ every year so the function is f(n)=45000-3000n, n- number of years

6 0
3 years ago
Write an equation in slope intercept form for a line that goes through the point (-9,4) and is perpendicular to line y=-3x-2
nadezda [96]

Answer:

y = 1/3x + 7

Step-by-step explanation:

Perpendicular slope is opposite reciprocal so it will be 1/3

Use the slope and point given and plug into y = mx  + b

4 = 1/3 (-9) + b

4 = -3 + b

7 = b

write new equation with new b and m

y = 1/3x + 7

3 0
3 years ago
Which function of x has the least value for the y-intercept
vekshin1

Answer:

The answer is B

hope this helps

Slope intercept form can be represented with the formal y=mx+3 in which B represents y intercept in case 3 is the y

4 0
2 years ago
Read 2 more answers
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