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kifflom [539]
3 years ago
11

It took Morty two weeks to build seven model airplanes. At the same rate, how many days will it take to build nine model airplan

es?
Mathematics
2 answers:
Andre45 [30]3 years ago
4 0

Answer:

it's 18 days

Step-by-step explanation:

hram777 [196]3 years ago
4 0
18 days long good luck
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The difference of two integers is thirty. the larger integer is two more than five times the smaller integer. Find the integers
Mnenie [13.5K]
X=2+5y
x-y=30

basically, all you're doing here is solving a system of equations. use the second equation to find out what x or y means. i'm going to solve it for x.

this is the new equation : x=30+y

now i plug this equation into the first one.

30+y=2+5y

30=2+5y-y
30=2+4y
28=4y
y=7

now that you know what y is, take that second equation we did in the beginning and plug in y.

x-7=30

solve for x

x=37



the two integers are 37 and 7.
5 0
3 years ago
The graph of r = -10 cos θ has which of the following characteristics?
Ronch [10]

Step-by-step explanation:

If we convert

r =  - 10 \cos(x)

to a Cartesian equation,

{r}^{2}  =  - 10 r \: \cos(x)

{x}^{2}  +  {y}^{2}  =  - 10x

{x}^{2}  + 10x +  {y}^{2}  = 0

{x}^{2}  + 10x + 25 +  {y}^{2}  = 25

(x + 5) {}^{2}  +  {y}^{2}  = 25

So we have a circle with center (-5,0), with a diameter of 10.

8 0
2 years ago
2x2 +5x+8<br> Given x 3-2, the expression<br> x+2.<br> is equivalent to
Masteriza [31]

Answer:

x=-1

Step-by-step explanation:

so 3-2 is 1 right so what humber + 2 is 1 well -1 becasue -1 + 1 is 0 and plus 2 would be 1 so its -1 (or x= -1). Hope this helped!

6 0
3 years ago
Which of the following are solutions to the equation below?
DENIUS [597]
A and C could be the answer
8 0
3 years ago
What is data? what can when can we use data?
sukhopar [10]
Data can be on a graph like if the weather increase 2 degrees
3 0
4 years ago
Read 2 more answers
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