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3 years ago

Help in 1 a-d please

Mathematics

1 answer:

MArishka [77]3 years ago

6 0

In five seconds he travels 290 feet.
In three seconds he travels 174 feet.
Yes, he is increasing time and distance at a steady rate.
Y = 58x
X representing the amount of time

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A smartphone costs $250. Sales tax is 5%. What is the total cost, including tax?

ludmilkaskok [199]

Answer:

ima guess $262.50

Step-by-step explanation:

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2 years ago

Ben and Ella are filling goodie bags for a party. Each goodie bag needs an eraser, a bubble wand, and a few candy bar bites. Ben

maxonik [38]

Answer:

Ben

Step-by-step explanation:

25 goodies = 20 minutes

27 goodies = 24 minutes

Let's use ratio, divide both of them by their minute

25/20 = 20/20

27/24 = 24/24

1.25 goodies = 1 minute

1.12 goodies = 1 minute

1.25 is bigger than 1.12.

7 0

3 years ago

(he was flunking school to get out of school plus he worked at kfc and loved his job, during the 11th grade btw)

galben [10]

Use quillbot it can summarize it

4 0

3 years ago

A box has a volume of 308 cm cubed. Its height is 4 cm greater than its length. Its length is 3 cm greater than its width. What

kifflom [539]

Answer:

4 cm.

Step-by-step explanation:

Given:

A box has a volume of 308 cm cubed.

Its height is 4 cm greater than its length.

Its length is 3 cm greater than its width.

Question asked:

What is the width of the box?

Solution:

Let width = $x\ cm$

Length = $x+3\ cm$

Height = $x+3+4=x+7\ cm$

As we know:

$Volume\ of\ box=length\times width\times height$

$308=(x+3)\times x\times(x+7)\\ \\ 308=(x^{2} +3x)(x+7)\\ \\ 308=x^{2} (x+7)+ 3x(x+7)\\ \\ 308=x^{3} +7x^{2} +3x^{2} +21x\\ \\ 308=x^{3} +10x^{2} +21x\\ \\ Subtract\ 308\ from\ both\ sides\\ \\ x^{3} +10x^{2} +21x-308=0\\ \\ factor\ left\ side\ of\ equation\\ \\ (x-4)(x^{2} +14x+77)=0\\ \\ Set\ factors\ equal\ to\ 0.\\ \\ x-4=0 \ or\ x^{2} +14x+77=0\\ \\ \\$

As width can never be in negative, $x= 4\ cm$

By substituting the value:-

Width = $x\ cm$ = 4 cm

Thus, width of the box is 4 cm.

4 0

2 years ago

Solve 3x−5 = 9. x = −3 x = 2 x = 7 x = 8

Airida [17]

I hope this helps you

3x-5+5=9+5

3x=14

x=4,66666....

8 0

3 years ago

Read 2 more answers