All categories

3 years ago

WILL REWARD Christina has already spent 2 minutes on the phone, and she expects to spend 2 more

Mathematics

2 answers:

dimaraw [331]3 years ago

8 0

Answer:

Step-by-step explanation:

t=2+2p

Karolina [17]3 years ago

5 0

Answer:

t=2x+ 2

Step-by-step explanation:

x is every phone call 2 is how many minutes she spends on each call The other 2 is the 2 minutes she already spended

You might be interested in

a rectangle has a length if x + 7 centimeters. The perimeter of the rectangle is 23 centimeter. What is the value of x

Tems11 [23]

$23 = 14 + 2x$
$reasoning \: for \: each \: term \: in \: the \\ \: above \: equation\\ \\ p = 23 \\ 14 = 7 \times 2 \\ 2x = 2 \times x$
$\: \: \: \: \: 23 - 14 \: \: \: \: \: \: \: \: \: \: \: \: \: \: 14 + 2x - 14 \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 9 = 2x$
$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 9 \div 2 \: \: \: \: \: \: \: \: \: 2x \div 2 \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 4.5 = x$
So, the answer is 4.5

8 0

3 years ago

What is the equation of the line in slope-intercept form?

lutik1710 [3]

The slope is negative and is -16 / 8 = -2

The y intercept is at y = 16

General form is y = mx + c
m = -2 and c = 16 so we have :-

y = -2x + 16 Answer

3 0

3 years ago

A rectangle has a width of 2xy3 and a length of 4x5y6. What is the area of the rectangle?

astraxan [27]

Answer:

6x²5y²6 cm²

Step-by-step explanation:

(2xy3) x (4x5y6)

(2x) x (4x) = 6x²

(y) x (5y) =5y²

6x²5y²6 cm²

7 0

2 years ago

The mean speed of vehicles along a stretch of highway is 56 mph with a standard deviation of 4 mph. You

Elenna [48]

The corresponding z score for speed of 62 mph, 47 mph, and 56 mph is 1.5, -2.25 and 0 respectively.

<h3>Z score</h3>

Z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

$z=\frac{x-\mu}{\sigma }$

Where x is raw score, μ is mean, σ is standard deviation

Given that:

σ = 4, μ = 56, hence

for x = 62:

$z=\frac{62-56}{4 } =1.5$

for x = 47:

$z=\frac{47-56}{4 } =-2.25$

for x = 56:

$z=\frac{56-56}{4 } =0$

The corresponding z score for speed of 62 mph, 47 mph, and 56 mph is 1.5, -2.25 and 0 respectively.

Find out more on Z score at: brainly.com/question/25638875

4 0

2 years ago

Add. 8x^2-4x-3+5x^2-2x-6

jekas [21]

Answer:

13 x^2 -6x -9

Step-by-step explanation:

8x^2-4x-3+5x^2-2x-6

Combine like terms

8x^2+5x^2 -4x-2x -6-3

13 x^2 -6x -9

6 0

3 years ago