3 years ago

Solve-20-5>3. Which graph shows the solutions?

1 answer:

True [87]3 years ago

3 0

The second one shows the solution

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Liula [17]

Answer: c) 56.2

<u>Step-by-step explanation:</u>

Compare the original rate to the the new rate:

$\dfrac{diameter}{mph}:\dfrac{24.5\ in}{53\ mph}=\dfrac{26\ in}{x}\\\\\\24.5x=53(26)\\\\\\x=\dfrac{53(26)}{24.5}\\\\\\x=\large\boxed{56.2\ mph}$

8 0

3 years ago

bagirrra123 [75]

9y - 5x = 20
or, (9y - 5x) / 20 = 1
or, 9/20 y - 1/4 x = 1
compare with x/a + y/b = 1
you'll get
x intercept (a) = -4
y intercept (b) = 20/9

8 0

3 years ago

sweet-ann [11.9K]

A-2+3= -2
⇒ a+ (-2+3)= -2 (combine like terms)
⇒ a+ 1= -2
⇒ a= -2-1
⇒ a= -3

Final answer: a=-3~

4 0

4 years ago

katen-ka-za [31]

Answer:

7 - 3 $\sqrt{3}$

Step-by-step explanation:

Given

3 + $\sqrt{x+7}$ - $\sqrt{3x}$ ← substitute x = 9

= 3 + $\sqrt{16}$ - $\sqrt{27}$

= 3 + 4 - $\sqrt{9(3)}$

= 7 - 3 $\sqrt{3}$

3 0

4 years ago

ahrayia [7]

1/8,0.2,0.35 because 1/8=0.125

3 0

4 years ago