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Mariana [72]
3 years ago
15

Two trains leave stations 75 miles apart at the same time heading toward one another on parallel tracks. train a is traveling 60

miles per hour, while train b is going 65 miles per hour.how long after departure do the trains pass each other? a60 minutes b126 minutes c12.5 minutes d36 minutes
Mathematics
1 answer:
KATRIN_1 [288]3 years ago
8 0
The distance between them is 75 miles
after 1 hour the train will go 125 miles
125 miles.....1 hour
75 miles..........x hour
x=75/125=75/125*60=36 minutes

d is the answer
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PLEASE HELP! NEED TO SUBMIT SOON! NOT SURE IF I GOT THE RIGHT ANSWERS! THANK YOU IN ADVANCE!!!
Eddi Din [679]
Nice

4s=amount of grams of protine in straberry for s ounces
3b=amount of grams of protine in banana for b ouces

total ounces is 6
s+b=6

total grams is 22
4s+3b=22

s+b=6
4s+3b=22
those are the 2 equations

a.
s+b=6
4s+3b=22


b. elmination, we can elminate alll the b's and have 1s left

c.
multiply first equaiton by -3 and add to second

4s+3b=22
<u>-3s-3b=-18 +</u>
1s+0b=4
s=4
sub
s+b=6
4+b=6
minus 4
b=2

4 oz straberry
2 oz banana
8 0
3 years ago
PLZ HELP ILL MARK YOU BRAINLIEST
NARA [144]

Answer:

D. 89°

Step-by-step explanation:

On the line segment "C,"  89 degrees is shown in one corner. x is directly across from it, therefore being the same degrees

7 0
3 years ago
A central angle of a circle measures 1.5 radians. If the radius of the circle is 3 cm, what is the area of the related sector?
soldi70 [24.7K]

Answer:

Option B. 6.75\ cm^{2}

Step-by-step explanation:

we know that

The area of a circle is equal to

A=\pi r^{2}

we have

r=3\ cm

substitute

A=\pi (3^{2})=9 \pi\ cm^{2}

Remember that

2\pi radians subtends the complete circle of area 9 \pi\ cm^{2}

so

by proportion

Find the area of the related sector for a central angle of 1.5 radians

Let

x------> the area of the related sector

\frac{9 \pi}{2\pi}\frac{cm^{2}}{radians} =\frac{x}{1.5}\frac{cm^{2}}{radians}\\ \\x=9*1.5/2\\ \\x= 6.75\ cm^{2}

7 0
3 years ago
The area of the trapezoid is 30square inches.
AysviL [449]

Answer:

the height is 7.5

Step-by-step explanation:

30 divided by 4 = 7.5

7 0
2 years ago
A line is parallel to y = 2x - 8 and
Bad White [126]
Parallel line means having the SAME slope

so the slope of a line parallel to the given line is 2

plug in the given point and slope of 2 into point slope form
y+1 = 2 (x+4)

solve for slope intercept form
y+1 = 2x + 8
y = 2x + 7

answer: y=2x+7
7 0
2 years ago
Read 2 more answers
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