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mamaluj [8]
3 years ago
5

What are two addition equations that each have a sum of -21.5?

Mathematics
1 answer:
tino4ka555 [31]3 years ago
6 0

Answer:

-21.5 + 0

-22.5 - 1

Step-by-step explanation:

lol

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The cafeteria can serve 32 lunches in 5 minutes. How long will it take them to serve 57 lunches?
PolarNik [594]

Answer:

Around 364

Step-by-step explanation:

So to fund the answer, you need to find how much they can eat per minute: 32/5 = 6.4 (around 6 lunches)

Then you multiply this by 57: 57x6.4 = 364.8

8 0
3 years ago
Please help I asked this question earlier and nobody answered! :(​
tatiyna

Answer:

B

Step-by-step explanation:

One way to tell is to put both equations into slope-intercept form.  That form is usually written y=mx+b where  <em>m</em>  is the slope and  <em>b</em>  is the y-intercept.

Solve the first equation for y.

6x+2y=5 \\ 2y=-6x+5 \\ y=-3x+5/2

The slope of this line is -3, and its y-intercept is 5/2.

Solve the second equation for y.

y+3x=2\\y=-3x+2

The slope of this line is -3 and its y-intercept is 2.

The lines are parallel because they have the same slope and <u>different</u> y-intercepts.  There is no solution to the system.

8 0
3 years ago
A cube has a volume of 1331 cm3. What is the area of one of its faces.
Vinvika [58]
Area = 726 cm squared
3 0
3 years ago
which has the greater volume: Prism with a length of 5 inches, a width of 4 inches, and a height of 10, or a prism with a length
GuDViN [60]
Since you have to multiple. L×W×H....

The first one has a volume of 400 and the second has a volume of 400...so both prisms have an equal volume but have a differnet shape
7 0
3 years ago
Please answer below :-)
Serjik [45]

Answer:

B. 88.8

Step-by-step explanation:

let x represent class y

(x+71.2)/2=80   multiply each side by 2

x+71.2=160      subtract 71.2 by both sides

x=88.8

or

trial an error

replace x with each of the numbers and see if it plugs in.

example:

(80.5+71.2)/2=80

151.7/2=80

75.85=80?

false. incorrect

another example:

(88.8+71.2)/2=80

160/2=80

80=80?

true. correct

7 0
3 years ago
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