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Anna35 [415]
3 years ago
11

65 traffic cones we’re equally spaced over 5/8 of a mile how many traffic cones are used per mile

Mathematics
1 answer:
Paha777 [63]3 years ago
8 0

Given:

65 traffic cones we’re equally spaced over \dfrac{5}{8} of a mile.

To find:

The number of traffic cones are used per mile.

Solution:

We have,

Number of cones used in \dfrac{5}{8} of a mile = 65

Number of cones used for a mile = 65\times \dfrac{8}{5}

                                                       = 13\times 8

                                                       = 104

Therefore, 104 traffic cones are used per mile.

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A colony of flowers is pollinated by hummingbirds and sunbirds. Let H represents the number of hummingbirds and S represent the
zloy xaker [14]

<em><u>Complete Question:</u></em>

A colony of flowers is pollinated by hummingbirds and sunbirds. Let H represents the number of hummingbirds and S represent the number of sunbirds that must pollinate the colony so it can survive until next year.

6H+ 4S> 74

This year, 8 hummingbirds pollinated the colony. What is the least number of sun birds that must pollinate the colony to ensure that it will survive until next year?

<em><u>Answer:</u></em>

The least number of sun birds is 7

<em><u>Solution:</u></em>

Given inequality is:

6H + 4S > 74

Where,

H is the number of hummingbirds

S is the number of sunbirds

This year, 8 hummingbirds pollinated the colony

Substitute H = 8 in given inequality

6(8) + 4S > 74

48 + 4S > 74

Subtract 48 from both sides

48 + 4S - 48 > 74 - 48

4S > 26

Divide both sides by 4

S > 6.5

Hence the least number of sun birds is 7

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3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
Percy solved the equation x2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.
antoniya [11.8K]
= > x² + 7x + 12 = 12

= > x² + ( 4 + 3 )x + 12 = 12

= > x² + 4x + 3x + 12 = 12

= > x( x + 4 ) + 3( x + 4 ) = 12

= > ( x + 4 ) ( x + 3 ) = 12


Percy did correct till this step. But by doing like this, Percy can't get the values of the variable x.



Percy should follow the following steps :

= > x² + 7x + 12 = 12


Add -12 on both sides,


= > x² + 7x + 12 - 12 = 12 - 12

= > x² + 7x = 0

= > x( x + 7 ) = 0

= > ( x = 0 ) or ( x + 7 = 0 )

= > ( x = 0 ) or ( x = - 7 )



Hence, required value(s) of x is 0 or -7
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8 0
4 years ago
Read 2 more answers
What adds to 10 but also multiplies to -96
klio [65]
X=16
Y=-6

im not good at factorization but this is what i got
8 0
3 years ago
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