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3 years ago

Mr. Martinez walks 5 miles in 2 hours at a steady pace. How far can he walk in 1 hour and 15 minutes

1 answer:

5 0

Junaid Mirza
Apr 5, 2018
2.8125 mile

Explanation:
Speed
=
Distance
Time
Speed
=
5 mile
2 hr
=
2.25 miles/hr
1 hr 15 min
=
1 hr
+
1
4

hr
=
1.25 hr
Distance = Speed × Time
=
2.25

miles
hr
×
1.25
hr
=
2.8125 mile

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in the figure below trianglePQM and triangleQRP are right triangles. the measure of lineQM is 6 and the measure of lineQP is 8.

Kipish [7]

Answer:

Option 4 is correct. The length of PR is 6.4 units.

Step-by-step explanation:

From the given figure it is noticed that the triangle PQR and triangle MQR.

Let the length of PR be x.

Pythagoras formula

$hypotenuse^2=base^2+perpendicular^2$

Use pythagoras formula for triangle PQM.

$PM^2=QM^2+PQ^2$

$PM^2=(6)^2+(8)^2$

$PM^2=36+64$

$PM^2=100$

$PM=10$

The value of PM is 10. The length of PR is x, so the length of MR is (10-x).

Use pythagoras formula for triangle PQR.

$PQ^2=QR^2+PR^2$

$(8)^2=QR^2+x^2$

$64-x^2=QR^2$ .....(1)

Use pythagoras formula for triangle MQR.

$MQ^2=QR^2+MR^2$

$(6)^2=QR^2+(10-x)^2$

$36=QR^2+x^2-20x+100$

$36-x^2+20x-100=QR^2$ .... (2)

From equation (1) and (2) we get

$36-x^2+20x-100=64-x^2$

$20x-64=64$

$20x=128$

$x=6.4$

Therefore length of PR is 6.4 units and option 4 is correct.

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Gọi S là tập các giá trị nguyên của tham số m trong khoảng (–20;20) để bất phương

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Answer:

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46 cookies - 12 cookies = x cookies
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3 years ago

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The fourth graph or D (the one in the bottom right corner) this is because a pyramid consists of four triangles and one square at the bottom.

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Tex's Taco Truck serves tacos on either hard or soft shells. Yesterday, Tex's Taco Truck sold 5 hard-shell tacos for every 2 sof

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Answer:

65 hard-shells

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Step-by-step explanation:

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