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3 years ago

14

It costs 30 dollars per month for a cell phone plus 10 dollars for every GB of data.Which expression can be used to represent th

e cost of a cell phone bill when x is the number of GB of data used?
a.30 + 10

b.30x + 10

c.10x + 30

d.10x + 30x

1 answer:

Oksanka [162]3 years ago

7 0

Answer: I Think Its C.( 10x ) + 30

Step-by-step explanation: Hoped This Helped! Thx For The Points!

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4 bells toll together at 9 am. They toll after 7, 8. 11 and 12 seconds respectively. How many times will they toll together agai

Svetach [21]

Answer:

5 times

Step-by-step explanation:

What we need to do here is to find the lowest common multiple of 7,8,11 and 12

This is;

1848

Now, let’s calculate the number of seconds in 3 hours

In 1 hour, we have 3600 seconds

In 3 hours, this will be;

3600 * 3 = 10,800 seconds

So, to find the number of times in which all 4 will toll together, we need to know the number of 1848 seconds in 10,800 seconds

Mathematically, that will be;

10,800/1848 = 5.844

Our answer will be 5 times however

This is because the sixth time they would have sounded together would be more than the 3 hours time frame

8 0

3 years ago

The difference of two numbers is equal to 0.6. Their quotient is also 0.6. What are the numbers? There are 4

Makovka662 [10]

Let the two numbers be represented by x and y. The problem statement gives rise to two sets of equations.
x - y = 0.6
y/x = 0.6 . . . . . . . assuming x is the larger of the two numbers
or
x/y = 0.6 . . . . . . . assuming y has the larger magnitude

The solution of the first pair of equations is
(x, y) = (1.5, 0.9)

The solution of the first and last equations is
(x, y) = (-0.9, -1.5)

The pairs of numbers could be {0.9, 1.5} or {-1.5, -0.9}.

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3 years ago

If it is noon Pacific Time, what time is it in Boston?

Sergio039 [100]

It would be 3:00 pm in Boston

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3 years ago

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What conjecture can you make about the sum of the first 10 odd integers

saul85 [17]

The answer si that the first ten odd integers are all even. Maybe this is really a fact but not a conjecture

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3 years ago

Margo borrows $900, agreeing to pay it back with 7% annual interest after 9 months. How much interest will she pay? Round your a

Veronika [31]

Answer:

$I=\$47.25$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

I is the Final Interest Value

P is the amount of money borrowed

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=9/12\ years\\ P=\$900\\r=0.07$

substitute in the formula above

$I=900(0.07(9/12))$

$I=\$47.25$

3 0

4 years ago