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3 years ago

Can someone please help

Mathematics

1 answer:

tino4ka555 [31]3 years ago

7 0

Answer:

5.6<x<∞

Step-by-step explanation:

x has to be no less than or equal to 2.8+2.8. So, x>5.6

x is less than∞

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Write each fraction in simplest form 18 divided by 9

defon

well it would be 18/9 and that would simplify to 2 because if u divide both by 9 u get 2/1 which is 2

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3 years ago

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A person is 6 feet tall and casts a shadow of 3.2 ft at the same time a tree casts a shadow of 36.8 ft how tall is the tree?

Elan Coil [88]

Answer:

18.5

Step-by-step explanation:

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3 years ago

180,000 round to the nearest percent

Ymorist [56]

Answer:

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Step-by-step explanation:

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2 years ago

Write a linear equation given the point and slope or two points.

attashe74 [19]

Answer:

1) y = -2x - 1

2) y = -3/4 + 3

3) y = 4x + 9

4) y = - 5/3x - 2

Step-by-step explanation:

b = y - m*x

1) (-7,13) and slope: -2

b = 13 - (-2)*(-7)

b = 13 - 14

b = -1

2) (4,6) lope = -3/4

b = 6 - (-3/4)*(-4)

b = 6 - 3

b = 3

y = -3/4x + 3

3) (-5,-11) and (3,-7)

Slope: (1 - - 11)/(-2 - - 5) = 12/3

= 4

b = -11 - (4) (-5) = 9

b = 9

4) slope = (-7 - 8)/(3- - 6)

= -15/9 = - 5/3

b = 8 - (-5/3)*(-6)

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5 0

2 years ago

A music store sold a total of 27 used trumpets and clarinets in one month. Trumpets cost $149 and clarinets cost $99. If total s

Annette [7]

Answer:

The number of clarinets musical store sold was 16. and number of trumpets musical store sold was 11.

Step-by-step explanation:

Let the musical store sells 'x' number of trumpets and 'y' number of clarinets.

According to question,

Total number of trumpets and clarinets sold is 27 that is

$x+y=27$ ..............(1)

Also given Trumpets cost $149 and clarinets cost $99.

then the shop sold x trumpets for $149x and sold y clarinets for $99y and total sales were $3233.

thus, $149x+99y=3233$ ...........(2)

Solving for equation (1) and (2),

Multiply equation (1) by 149 , we get

(1) ⇒ $149x+149y=4023$ ........(3)

Now, subtract equation (3) from equation (2) , we get

$149x+149y-(149x+99y)=4023-3233$

$\Rightarrow 149x+149y-149x-99y=790$

$\Rightarrow 149y-99y=790$

$\Rightarrow 50y =790$

$\Rightarrow y =\frac{790}{50}=15.8$

Thus, number of clarinets musical store sold was 15.8 but since clarinets are to be in whole number rounding off to the nearest integer 16.

and put y = 16 in (1) , we get

$x+y=27 \Rightarrow x+16=27 \Rightarrow x=27-16=11$

Thus, number of trumpets musical store sold was 11.

4 0

2 years ago