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dmitriy555 [2]
3 years ago
11

you talk on the phone y minutes on a day x of every month according to the equation y=2x+1. The cellphone company claims you tal

ked 12 minutes on the phone on the fourth day of the month. Are they right?
Mathematics
1 answer:
Mademuasel [1]3 years ago
4 0
No they are not , y= 2(4)+1 is 9 not 12
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Simplify 15.6 divided by negative 3..<br><br> −5.6<br><br> 5.6<br><br> −5.2<br><br> 5.2
Finger [1]
15.6 / -3 = -5.2   (positive divided by negative is negative)
8 0
3 years ago
Read 2 more answers
Unknown interior for 65° and 45°
fomenos
To find the answer, use this equation:
65 + 45 + x = 180
Simplify:
110 + x = 180
Subtract:
x = 70
Your unknown interior is 70

Hope this helps!! :)
3 0
3 years ago
A gift box has a volume of 450 cubic inches. The width of the box is 4 inches less than the length. The height is twice the widt
VashaNatasha [74]

Answer:

width = 5 in

length = 5+4=9 in

height = 2(5)= 10 in

Step-by-step explanation:

A gift box has a volume of 450 cubic inches.

Let 'w' be the width of the box

The width of the box is 4 inches less than the length.

length = w+4

The height is twice the width.

height = 2 \cdot width

height = 2w

Volume of box = length times width times height

V=(w+4)(w)(2w)

450=(w+4)(w)(2w)

450=2w^3+8w^2

2w^3+8w^2-450=0

\quad 2\left(w-5\right)\left(w^2+9w+45\right)=0

w-5=0

w=5

\quad\left(w^2+9w+45\right)=0, this gives two complex values

so width = 5

length = 5+4=9

height = 2(5)= 10

5 0
3 years ago
2x − 2) + (x + 1) + x + (x + 1) = (2x − 9) + (x + 1) + (x + 8) + x,
KengaRu [80]

Answer:

x=1

Step-by-step explanation:

5x=5x  x=1

4 0
3 years ago
Read 2 more answers
4 questions 50 points
MAXImum [283]
I hope this helps you

8 0
3 years ago
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