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kherson [118]
3 years ago
10

What is y= -4 7x -7y =-21

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
7 0

Answer:

-21

Step-by-step explanation:

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12. A shoebox has a volume of 456 cm3 and a mass of 114 g. What is its<br> density?
victus00 [196]

Answer:

114.0g/538.5cm^3=0.2117 glcm^3

Step-by-step explanation:

8 0
3 years ago
Help i only have a day. 5% of what number is 12? Round your answer to the nearest tenth place if necessary. (Use any method to s
maw [93]

Answer:

240

Step-by-step explanation:

So here’s the step by step (for the show your work thingy)

so we can write an equation

0.05x=12

We use 0.05 becuase 5 percent is basically 5/100 and the x is used becuase we don’t know what the number is and the =12 is for the number that came out as a final result

ow we can solve the equation

x=12/0/05

x=240

Final answer is 240

3 0
3 years ago
Which polygons are congruent?<br><br> Select <img src="https://tex.z-dn.net/?f=%5Cbold%7Beach%7D" id="TexFormula1" title="\bold{
gregori [183]
<h3>Answer: Everything but the lower right hand corner</h3>

==============================

Explanation:

Notice for the corners mentioned, we have the figures with corresponding angles that are the same (shown by similar arc markings) and they have congruent corresponding sides as well (aka they are the same length shown by similar tickmarks). Rotating one figure has it transform into the other.

The only time this does not happen is with the pair of figures in the bottom right hand corner. One square has side lengths of 20, the other has side lengths of 25. The two figures are not congruent due to the side mismatch.

8 0
3 years ago
I don’t know the answer
masya89 [10]

Answer:

?=1O or 15

Step-by-step explanation:

4 0
3 years ago
Write first three common multiple of 3 , 5 and 6​
ratelena [41]

Answer:

LCM of 3, 5, and 6 is the smallest number among all common multiples of 3, 5, and 6. The first few multiples of 3, 5, and 6 are (3, 6, 9, 12, 15 . . .), (5, 10, 15, 20, 25 . . .), and (6, 12, 18, 24, 30 . . .) respectively. There are 3 commonly used methods to find LCM of 3, 5, 6 - by division method, by prime factorization, and by listing multiples.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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