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Yuliya22 [10]
3 years ago
6

a long distance phone company charges $0.85 for 5 minutes and $1.10 for 10 minutes. find the cost of a 20 minute phone call​

Mathematics
2 answers:
kipiarov [429]3 years ago
7 0
It will cost 2.20 for a 20 minute phone call
Anna35 [415]3 years ago
6 0
The answer would be $2.20 because if 10 minutes is $1.10 then add another 10 minute price to that and it’s $2.20.
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Find the distance between the two points.<br> (-6, -7) and (154, - 43)
Vitek1552 [10]

Answer:

(160, 36)

Step-by-step explanation:

Distance is always positive because, well, you aren't -50 meters away from your house or something. You are just 50 meters away from your house. And 160 is the distance between -6 and 154, because there is one minus and one plus, you add them, because that is how far they are apart, and then-43 and -7 were easy just subtract them.

8 0
2 years ago
Plz help me with this
goldenfox [79]
Area of triangle=1/2(base×height)
360=1/2((4x-2)(7x+5))
720=(4x-2)(7x+5)
FOIL the binomial
720=28x^2+6x-10
Bring 720 to the other side
28x^2+6x-10-720=0
28x^2+6x-730=0
Factor 2 out
2(14x^2+3x-365)=0
Factor 2(14x+73)(x-5)=0
x-5=0
x=5
It can't be 14x-73=0 because the length can't be negative.
You're welcome.
5 0
3 years ago
A circle has a diameter of 30 inches. find the circumfrence of the circle to the nearest tenth
Goshia [24]

Answer:

C≈94.25in d Diameter 30in Using the formulas C=2πr d=2r Solving forC C=πd=π·30≈94.24778in

8 0
2 years ago
Read 2 more answers
Could these side lengths make a right triangle, 12m, 35m and 37m
natta225 [31]

Answer:

Yes

Step-by-step explanation:

Using Pythagorean theorem WHICH ONLY WORKS FOR RIGHT TRIANGLES,

a^2+b^2=c^2 where a and b are the two shortest legs.

12^2+35^2=c^2

144+1225=c^2

c^2=1369

c=\sqrt{1369}

c=37

3 0
2 years ago
There are 18 girls in Mr. Wilson's math class. It 60% of the students are girls, how many total students are in Mr.
Vikentia [17]

Step-by-step explanation:

60% = 18 +

20% = 6 ( cos its 1/3)+

20% = 6 =

100% = 30

8 0
2 years ago
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