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4 years ago

7

PLEASE HELP ASAP................................

1 answer:

Goryan [66]4 years ago

6 0

C

It's best to subtract 4 first

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For Sophia’s graduation party, several tables of the same width will be arranged end to end to form a serving table with a total

Andrew [12]

Answer:

The length is 16.1 ft and the width is 4.7 ft

Step-by-step explanation:

Let

x -----> the total length of the tables

y -----> the width of the tables

we know that

The area is equal to

$A=xy$

$A=75\ ft^{2}$

so

$75=xy$ -----> equation A

$x=3y+2$ -----> equation B

substitute equation B in equation A

$75=(3y+2)y$

$3y^{2} +2y-75=0$

Solve the quadratic equation by graphing

The solution is $y=4.7\ ft$

Find the value of x

$x=3(4.7)+2=16.1\ ft$

therefore

The length is 16.1 ft and the width is 4.7 ft

7 0

3 years ago

Read 2 more answers

Using the same algorithm:

lys-0071 [83]

Answer:

7

Step-by-step explanation:

step 1

$n+2$

step 2

$2(n+2)\\\\=2n+4$

step 4

$2n+4-3\\\\=2n+1$

if n=3

$2(3)+1\\\\=6+1\\\\=7$

output is 7

8 0

4 years ago

Which statement(s) are true?

Anika [276]

Answer:

no event can be impossible

4 0

2 years ago

Read 2 more answers

Please answer correctly !!!!!! Will mark brianliest !!!!!!!!!!!

igor_vitrenko [27]

Answer: 2

Step-by-step explanation:

8 0

3 years ago

At noon Joyce drove to the lake at 30 miles per hour. but she made the long walk back home at 4 miles per hour. How long did she

mars1129 [50]

Answer:

60 miles

Step-by-step explanation:

let d = distance to the lake

Using: time = distance ÷ speed

Create expressions for the time it takes for each journey:

Drive: $t_1=\dfrac{d}{30}$

Walk: $t_2=\dfrac{d}{4}$

If total time = 17 hours

$\implies t_1+t_2=17$

$\implies \dfrac{d}{30}+\dfrac{d}{4}=17$

$\implies \dfrac{17d}{60}=17$

$\implies 17d=1020$

$\implies d=\dfrac{1020}{17}$

$\implies d=60$

Therefore she walked 60 miles

3 0

2 years ago

Read 2 more answers