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Mkey [24]
3 years ago
7

Can somebody please help me? I will mark brainiest if i can! qr + r; use q = 3, and r = -6

Mathematics
2 answers:
Alenkasestr [34]3 years ago
6 0
<h3>Answer:   -24</h3>

Explanation:

The letters q and r indicate placeholders for actual numbers.

In this case, we replace q with 3 and replace r with -6

Afterward we use the order of operations PEMDAS like so:

qr + r

3*(-6) + (-6)

-18 + (-6)

-24

Sveta_85 [38]3 years ago
5 0
The answer is -12. R times -6 is -18 and -18 plus -6 is -12
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Chandler Heisinger buys a monthly metro card, which entitles him to unlimited subway travel in New York City, for $81 per month.
ANTONII [103]
Let r be the number of rides Chandler takes in a month. Then the cost with the MetroCard is still $81, but the cost without the MetroCard is 2r. So we can set up an equation representing what we want: "The cost with a MetroCard of r rides in a month is less than the cost without a MetroCard." In equations,
81\ \textless \ 2r \\ r\ \textgreater \ 81/2\ \textgreater \ 40 \\&#10;r \geq 41
Thus, at a minimum, Chandler must take 41 rides for his MetroCard to be cheaper than not having it.
7 0
4 years ago
Can someone explain how you got the answer!!
gavmur [86]

9514 1404 393

Answer:

  20 square units

Step-by-step explanation:

The area is given by the formula ...

  A = bh

where b is the base of the parallelogram, and h is the perpendicular distance between the parallel bases. Using the numbers from the figure, we have ...

  A = 5·4 = 20 . . . . square units

_____

<em>Additional comment</em>

You will notice this is the same formula as is used for a rectangle. You can consider the parallelogram to have the same area as a rectangle of these dimensions if you look at what happens when you cut the right triangle from the right end and add it to the left end. The result is a rectangle 5 units wide and 4 units high.

The same formula applies even if the skew is so great that the bases do not overlap. (That much skew would not result in a triangle of the kind shown in this diagram.)

6 0
3 years ago
The projected sales volume of a video game cartridge is given by the function s(p) = 3000 / (2p + a), where s is the number of c
Alex_Xolod [135]

Answer: 149 cartridges will be sold at 20 dollars per cartridge.

Step-by-step explanation:

Given: The projected sales volume of a video game cartridge is given by the function s(p)=\dfrac{3000}{2p+a}, where <em>s</em> is the number of cartridges sold, in thousands; <em>p</em> is the price per cartridge, in dollars; and <em>a</em> is a constant.

Put s(p)=100000, p= 10, we get

100000=\dfrac{3000}{2(10)+a}\\\\\Rightarrow\ 100=\dfrac{3}{20+a}\\\\\Rightarrow\ 100(20+a)=3\\\\\Rightarrow\ 2000+100a=3\\\\\Rightarrow\ 100a=-1997\\\\\Rightarrow\ a=-19.97

i.e. s(p)=\dfrac{3000}{2p-19.97}

Put p=20, we get

s(20)=\dfrac{3000}{2(20)-19.97}\\\\=\dfrac{3000}{40-19.97}\\\\=\dfrac{3000}{20.03}\approx149

Hence, 149 cartridges will be sold at 20 dollars per cartridge.

8 0
3 years ago
Please help! I don't understand how to do this.<br>​
inn [45]

Step-by-step explanation:

8). CA = 9.20 ( multiply the given decimal by 100)

AB = 10.80

CB = 8.50

9). option e is correct side - side - side

10). SSS

11). 1 ( because with the given info. u can calculate the perimeter of the traingle only )

12) through the given info we can only find the perimeter of the traingle

so,

perimeter = sum of all sides

→ 9.2 + 8.5 + 10.8 = 28.5 m

<em>hope </em><em>this</em><em> answer</em><em> helps</em><em> you</em><em> dear</em><em>.</em><em>.</em><em>.</em><em>take </em><em>care </em><em>may </em><em>u </em><em>have</em><em> a</em><em> great</em><em> day</em><em> ahead</em><em>!</em>

3 0
2 years ago
gertrude won the jump rope contest four more times than elena. they have won a combined total of 18 jump rope contest. write and
OLga [1]
G = how many contests that Gertrude won
e = how many contests Elena won

Gertrude 4 more times than Elena
g = e + 4
They won a total of 18 contests
g + e = 18
7 0
3 years ago
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