3 years ago

Which expression is equivalent to 10x + 20y?

Mathematics

2 answers:

horsena [70]3 years ago

7 0

Answer: 30

Step-by-step explanation:

10*x=10

20*y=20

20+10=30

r-ruslan [8.4K]3 years ago

3 0

Which expression is equivalent to 10x - (5x - 1)?
A.2x−1 B.2x+1C.5x−1 D.5x+1

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sleet_krkn [62]

Answer:

Option B is the correct answer

Step-by-step explanation:

Hope it helps you in your learning process.

$\tan 30\degree=\frac{17}{x}$

$\implies\frac{1}{\sqrt 3}=\frac{17}{x}$

$\implies\huge{\red{ x={17\sqrt 3}}}$

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$\implies\frac{1}{2}=\frac{17}{y}$

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2 years ago

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A package of cookies, packed , ate the fourth part at breakfast , then 3/5 at tea time. there are still 18 cookies in the pakage

Leno4ka [110]

Ok so
1/4 of total eaten
3/4 left
3/5 of 3/4 eaten
9/20 left
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multiply both sides by 20
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divide both sides by 9
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40 total originlly

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3 years ago

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Select all sets of lengths that would form a right triangle.

VARVARA [1.3K]

Answer:

theres no picture ill still answer if you put a picture or somthing of the triangle

Step-by-step explanation:

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3 years ago

1/3 of a number decreased by 13 equals 45

mezya [45]

Answer:

174

Step-by-step explanation:

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3 years ago

Complete the square to re-write the quadratic function in vertex form: y = x ^ 2 - 2x - 8

blondinia [14]

Answer:

(1,-9)

Step-by-step explanation:

Rewrite in vertex form and use this form to find the vertex

(h,k).

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2 years ago

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