All categories

3 years ago

Can someone please help

Mathematics

2 answers:

Elis [28]3 years ago

6 0

Answer:

880 minutes

Step-by-step explanation:

cost = 0.05(per minute) + basic fee

y = 0.05x + 15

59 = 0.05x + 15

subtract 15

44 = 0.05x

divide by 0.05

x = 880

madam [21]3 years ago

5 0

Answer:

880 phone calls.

Step-by-step explanation:

His phone bill was 59 dollars. The phone company charged him 15 dollars for a basic fee, so that is $59-$15 which equals $44.

Since every call costs $0.05, you need to do $44 divided by $0.05 to get the amount of phone calls he did.

$44 divided by $0.05= 880, so Joe made 880 phone calls.

You might be interested in

edgar purchased three cheeseburgers for 5.75 fiona purchased five cheeseburgers for 7.50 who paid less

d1i1m1o1n [39]

Answer:

edgar

Step-by-step explanation:

edgar - 5.75 times 3 = 17.25

fiona - 7.50 times 5 = 37.50

edgar payed least since he has the smallest value

7 0

2 years ago

Please help, I really need this

Nady [450]

9514 1404 393

Answer:

(a) -- the correct choice is highlighted

Step-by-step explanation:

The units of specific heat tell you what quantities make up the ratio.

$\dfrac{390\text{ J}}{1\text{ kg$\cdot^\circ$C}}=\dfrac{-12.0\text{ J}}{0.012\text{ kg}\cdot\Delta T}\\\\\Delta T=\dfrac{-12.0}{0.012\cdot390}\ ^\circ\text{C}\approx-2.56\text{ $^\circ$C}$

The temperature will decrease by 2.56 C.

4 0

3 years ago

The perimeter Of a rectangle is 30 inches if it’s Lance is three times it’s width find the dimensions.

Marat540 [252]

Answer:

Width: 3.75

Length: 11.25

7 0

3 years ago

Read 2 more answers

Suppose X has a continuous uniform distribution over the interval [1.3, 6.2]. Round your answers to 3 decimal places.

goldenfox [79]

Answer:

(a) 3.75

(b) 2.00083

Step-by-step explanation:

It is provided that X has a continuous uniform distribution over the interval [1.3, 6.2].

(a)

Compute the mean of X as follows:

$\mu_{X}=\frac{a+b}{2}=\frac{1.3+6.2}{2}=3.75$

(b)

Compute the variance of X as follows:

$\sigm^{2}_{X}=\frac{(b-a)^{2}}{12}=\frac{(6.2-1.3)^{2}}{12}=2.00083$

(c)

Compute the value of P(X < 3.7) as follows:

$P(X < 3.7)=\int\limits^{3.7}_{1.3}{\frac{1}{6.2-1.3}}\, dx\\\\=\frac{1}{4.9}\times [x]^{3.7}_{1.3}\\\\=\frac{3.7-1.3}{4.9}\\\\\approx 0.4898$

Thus, the value of P(X < 3.7) is 0.4898.

5 0

2 years ago

Solve for a side in right triangles (soh cah toa)

nevsk [136]

Cos(35) = x/6
or 6 * cos(35) = x

3 0

3 years ago