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3 years ago

Lines A,B and C show proportional relationships which line has a constant of proportionally between y and x of 5

Mathematics

2 answers:

Orlov [11]3 years ago

7 0

Answer:

The answer is B

Step-by-step explanation:

BARSIC [14]3 years ago

5 0

Answer:

Step-by-step explanation:

3/5/45

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Solve similar triangles (advanced)

atroni [7]

Answer:

Step-by-step explanation:

The corresponding sides of similar Δs are proportional.

ΔADE ~ ΔABC ⇒ $\frac{AD}{AB}$ = $\frac{DE}{BC}$ = $\frac{AE}{AC}$

AD = x + 8 ; DE = 8

AB = x ; BC = 6

$\frac{x+8}{x}$ = $\frac{8}{6}$ ⇔ 8x = 6(x + 8) ⇒ <em>x = 24</em>

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2 years ago

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vichka [17]

A I think I am not 100% right

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2 years ago

A car travels 120 miles in 2.5 hours (with a constant speed). What is the car's

kipiarov [429]

Answer:

Step-by-step explanation:

120 divided by 2.5 = 40

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3 years ago

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Need help with number 5 and number 6

Goshia [24]

Answer:

5 d) 9 1/3

6 d) 2

Step-by-step explanation:

Proportions:

7 ⇒ 4

BY ⇒3

BY = 7*4/3

BY = 28/3

28/3 = 27/3 + 1/3 = 9 1/3

BY = 9 1/3

12 ⇒ 3

8 ⇒ SX

SX = 3*8/12

SX = 2

7 0

3 years ago

Which expression is equivalent to StartFraction (5 a b) cubed Over 30 a Superscript negative 6 Baseline b Superscript negative 7

m_a_m_a [10]

Answer:

Option D.

Step-by-step explanation:

The given expression is

$\dfrac{(5ab)^3}{30a^{-6}b^{-7}}$

We need to find the expression, which is equivalent to the given expression.

The given expression can be rewritten as

$\dfrac{5^3a^3b^3}{30a^{-6}b^{-7}}$ $[\because (ab)^m=a^mb^m]$

$\dfrac{125}{30}\times \dfrac{a^3}{a^{-6}}\times \dfrac{b^3}{b^{-7}}$

$\dfrac{25}{6}\times a^{3-(-6)}\times b^{3-(-7)}$ $[\because \dfrac{a^m}{a^n}=a^{m-n}]$

$\dfrac{25}{6}\times a^{3+6}\times b^{3+7}$

$\dfrac{25a^9b^{10}}{6}$

Therefore, the correct option is D.

7 0

3 years ago