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3 years ago

Let x = -3, y = -2, and z= 7. What is thevalue of this expression?yz+ 2(2-x)

Mathematics

1 answer:

Alja [10]3 years ago

3 0

Answer:

so the expression should be -2+7+2(2-(-3))

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Paula, the local baker, usually makes 15 loaves of bread and 10 cakes per day, but today she made 25 loaves of bread and 12 cake

frozen [14]

Answer:

Step-by-step explanation:

The percent increase formula is

$%increase=\frac{new-original}{original}*100%$

For the bread, our percent increase looks like this:

$\frac{25-15}{15}*100$

which gives us a percent increase of 66.7%

For the cakes, our percent increase looks like this:

$\frac{12-10}{10}*100$

which gives us a percent increase of 20%

3 0

3 years ago

What is the cost of operating a 3.00-w electric clock for a year if the cost of electricity is $0.0900 per kw · h ?

brilliants [131]

We must take into account the following change of units:
$1kw = 1000w

1 year = 365 days

1 day = 24 hours$
Applying the change of units we have that the electric consumption for 1 year is given by:
$(3) * (1/1000) * (365) * (24) = 26.28 kw * h
$
Then, the total cost is given by:
$(26.28) * (0.0900) = 2.3652
$
Answer:
the cost of operating a 3.00-w electric clock for a year is:
$ 2.3652

8 0

3 years ago

Marvin is comparing two different music websites. Website A charges $10 per month for a subscription and $0.25 per song. Website

Alecsey [184]

Website A:
c = 10 + 0.25 s
where c is the cost and s is the number of songs.
Website B:
c = 0.75 s
The equation ( answer ):
10 + 0.25 s = 0.75 s
We can solve this equation:
10 = 0.5 s
s = 10 : 0.5
s = 20 ( Marvin would have to buy 20 songs to to make the costs equal )

5 0

3 years ago

One end point of a line segment is ( -3, -6 ) The length of the line segment is 7 units find four points that could serve as the

Anika [276]

Answer:

(4, -6), (-10, -6), (-3, 1), (-3, -13)

Step-by-step explanation:

If we add/subtract t to/from any x/y coordinate, we will form a line segment with length 7. Hence, (4, -6), (-10, -6), (-3, 1), (-3, -13).

3 0

3 years ago

What is the quotient of -18 divided by [-1/6]

Sloan [31]

18?
-18 divided by [-1/6]
is 18
hopefully that's what you were looking for.?!!

4 0

3 years ago

Read 2 more answers

Let x = -3, y = -2, and z= 7. What is thevalue of this expression?yz+ 2(2-x)​

Let x = -3, y = -2, and z= 7. What is thevalue of this expression?yz+ 2(2-x)