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3 years ago

Junior traveled 420 miles in 7 hours to visit his mother. how many miles per hour did he travel

Mathematics

1 answer:

Galina-37 [17]3 years ago

4 0

60 mph
Miles divided time gives you the miles per hour. Therefore 420 divided by 7 gives you 60mph.

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Conti. 7-10 thanks a lot! unhelpful answers will be deleted.

Marysya12 [62]

Answers:

10. b. $\displaystyle 13$

9. b. $\displaystyle 20$

8. a. $\displaystyle 33$

7. a. $\displaystyle 25°$

Step-by-step explanations:

10. Both segments are considered congruent, so turn both expressions into an equation:

$\displaystyle 3x - 5 = x + 7 \hookrightarrow \frac{-12}{-2} = \frac{-2x}{-2} \\ \\ 6 = x$

Plug this back into the equation to get $\displaystyle 13$ on both sides.

9. All edges in a square obtain congruent right angles and edges, so set $\displaystyle 45$ equivalent to the given expression:

$\displaystyle 45 = 2x + 5 \hookrightarrow \frac{40}{2} = \frac{2x}{2} \\ \\ \boxed{20 = x}$

8. Both angles are considered supplementary, so turn both expressions into an equation and set it to one hundred eighty degrees:

$\displaystyle 180 = (4x - 15)° + (x + 30)° \hookrightarrow 180° = (15 + 5x)° \hookrightarrow \frac{165}{5} = \frac{5x}{5} \\ \\ \boxed{33 = x}$

7. In this rectangle, segment EO is a segment bisectour, making these angles Complementary Angles. Therefore, set an equation up to find its complement:

$\displaystyle 90° = 65° + m\angle{VOE} \\ \\ \boxed{25° = m\angle{VOE}}$

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Nataly_w [17]

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Step-by-step explanation:

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3 years ago

Solve 9x² - 6x + 1 = 0 using the Quadratic Formula.

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Answer:1/3 i dont know if this is right i just kindly copied the guy on top

Step-by-step explanation:

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3 years ago

Which of the following statements are equivalent to the statement "price decreased by one third"?

N76 [4]

75% of what it before

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3 years ago

Enter a range of values of x

igomit [66]

Answer:

$-5$ .

Step-by-step explanation:

We know that if two corresponding sides of two triangles are equal, then third sides of the triangles depend on angle between equal sides.

Angle opposite to larger side is larger.

Since, 14 < 15, therefore

$2x+10$

$2x$

$x$ ...(1)

We know that, angle can not not negative.

$2x+10>0$

$2x>-10$

$x>-5$ ...(2)

From (1) and (2), we get

$-5$

Therefore, the range of values of x is $-5$ .

4 0

3 years ago

Junior traveled 420 miles in 7 hours to visit his mother. how many miles per hour did he travel ​

Junior traveled 420 miles in 7 hours to visit his mother. how many miles per hour did he travel