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3 years ago

Two times a number is six times the sum of z and y

Mathematics

2 answers:

Lesechka [4]3 years ago

7 0

2x=6(z+y) is the answer, but someone else already got it... oops

Andrei [34K]3 years ago

3 0

It could be written as 2x=6(z+y) or
2x=6z+6y

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Simplify the Expression(20 points)-<br> -m - 7m

leva [86]

Answer:

-8m

Step-by-step explanation:

Combine like terms

−

{\color{#c92786}{-m}}{\color{#c92786}{-7m}}

−m−7m

−

{\color{#c92786}{-8m}}

−8m

5 0

3 years ago

Find the missing side and round the answer to the nearest tenth. Thanks.

pashok25 [27]

Answer:

22.2

Step-by-step explanation:

The missing side is x

cos19° = 21/x switch x and cos19°
x = 21/cos 19°

x = 22.21≈ 22.2

8 0

3 years ago

Which fraction (in simplest form) is equivalent to 0.42?

qwelly [4]

If you would like to know which fraction (in simplest form) is equivalent to 0.42, you can find this using the following steps:

0.42 = 42/100 = 21/50

The correct result would be D. 21/50.

7 0

3 years ago

Which operations is the following set closed under: {... , -3, -1, 1, 3, ...}?

Ganezh [65]

Not addition, since $-1+1=0$ and 0 doesn't belong to the set.

Not subtraction, since $1-1=0$ .

It is closed under multiplication. The set appears to contain all non-zero multiples of 3.

Not division, since dividing some of the numbers results in rationals which do not belong to the set.

What other operations are you supposed to consider?

5 0

3 years ago

Read 2 more answers

There are 63 seats in the first 3 rows of the auditorium. How many seats are there in only 1 row? How many seats are

AnnZ [28]

Answer:

There are 21 seats in one row, and there are 147 seats in 7 rows

Step-by-step explanation:

63÷3=21 / 21×7=147

7 0

3 years ago