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3 years ago

WILL MARK BRAINLIEST 30 POINTSSS

Mathematics

2 answers:

Nastasia [14]3 years ago

8 0

Answer: 2/5y and -.2y are like terms, and -6 and -2 are like terms

Step-by-step explanation:

kiruha [24]3 years ago

4 0

Answer:

Hey! Seems like you already have an answer but I am going to tell you why it's your answer!

Step-by-step explanation:

So 2/5y and 0.2y are like terms because they both have a letter at the end are a variable. Now -6 and -2 or both negative numbers so what you're looking out for or matching sign's like the one's I put above hope this helps a bit!!! Good Luck!!!!

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Find the value of x so that (-2, 4) is the midpoint between (x, 2) and (-5,3).

QveST [7]

$\bf ~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ (\stackrel{x_1}{x}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{-5}~,~\stackrel{y_2}{3}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left(\cfrac{-5+x}{2}~~,~~\cfrac{3+2}{2} \right)~~=~~\stackrel{midpoint}{(-2,4)}\implies \begin{cases} \cfrac{-5+x}{2}=-2\\[1em] -5+x=-4\\ \boxed{x=1} \end{cases}$

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3 years ago

Read 2 more answers

Sara drives 185 miles in 3 hours. If she

guajiro [1.7K]

I thinks its 740 miles

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3 years ago

I need help with an area math question

Ede4ka [16]

Answer:

Step-by-step explanation:

Area of outer triangle = $\dfrac{4x*(4x+3)}{2}= 2x*(4x +3)$

= 2x*4x + 2x*3

= 8x² + 6x

Area of inner triangle= $\dfrac{2x*(2x+5)}{2}=x*(2x+5)=x*2x+x*5=2x^{2} + 5x$

Area of aluminium = area of outer triangle - area of inner triangle

= 8x² + 6x + 2x² + 5x

= 10x² + 11x

Area of 20 aluminum borders = 20*(10x² + 11x) = 200x² + 220x

b) x = 25 cm

Area of 20 aluminum borders = 200*25² + 220*25

= 200 * 625 + 220*25

= 125000 + 5500

= 130500 cm²

c) Area of inner triangle (Glass) = 5500 cm²

Cost of aluminium = 130500 * 0.06 = $ 7830

Cost of glass = 5500 * 0.03 = $ 165

Cost of making 20 windows = 7830 + 165 = $ 7995

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3 years ago

What is 3/5 as a percent?<br>

julsineya [31]

Answer:

60%

Step-by-step explanation:

I changed 3/5 to 30/50, then multiplied them both by 2 to get 60/100, and since a percentage is out of a hundred, its 60%

I hope this helps! ^^

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3 years ago

What is 160% of 5 rounded to the nearest hundredth

faltersainse [42]

Answer:

Step-by-step explanation:

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4 years ago