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andrew-mc [135]
2 years ago
11

Alex is setting up an in-line skating course 21 feet long to practice weaving around cones. He wants a cone every 3 1/2 feet. Ho

w many cones does he need?​
Mathematics
1 answer:
Sauron [17]2 years ago
3 0

Answer:

I think it is 6 cones

Step-by-step explanation:

21 ÷ 3.5 = 6

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Find the product of 2/5 with the quotient of 7/3 and 4/5
marissa [1.9K]

Answer:

7/6

Step-by-step explanation:

7/3÷4/5

7/3×5/4

35/12

Now the multiplication

2/5×35/12

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6 0
2 years ago
PLEASE HELP
ruslelena [56]

Answer:

Rosaria purchased 50 bracelets and 70 necklaces

Step-by-step explanation:

Let the number of bracelets be b and the number of necklaces be n

b + n = 120 •••••(i)

Secondly;

10b + 11n = 1270 ••••(ii)

Total cost of b bracelets at 10 per 1 is 10b

Total cost of n bracelets at 11 per 1 is 11n

Adding both gives 1270

From i, b = 120-n

Substitute this into ii

10(120-n) + 11n = 1270

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n = 70

b = 120-n

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3 years ago
I wander what the quadramatic fourmula is
Marrrta [24]
Definition of quadratic a formula
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X²(2 - 7x) (-x+2)<br> Expand the following exercise
Komok [63]

Answer:

Step-by-step explanation:

Use FOIL method

(2 - 7x)(-x + 2) = 2*(-x) + 2*2 + (-7x)*(-x) + (-7x)*2

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x²(2-7x)(-x + 2)= x² (7x² - 16x + 4)

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7 0
2 years ago
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