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Karolina [17]
2 years ago
13

There are 120 minutes in 2 hours. How many minutes are in 15 hours? what operation do I use

Mathematics
2 answers:
MArishka [77]2 years ago
6 0
The operation is multiplication . Just do 60 times 15 . You will get 900
erma4kov [3.2K]2 years ago
3 0
120\ minutes\ in\ 2\ hours\\\\
x\ minutes\ \ in\ \ 15\ hours\\\\\Making\ ratio:\\
120-2\\x-15\\\\Cross\ multiplication\\\\
120*15=2x\\\\1800=2x\ \ \ \ | divide\ by\ x\\\\
x=900\\\\900\ minutes\ in\ 15\ hours.
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Rhonda has $13. She has one $5 bill, three $1 bills, and one other bill. Is a other bill a $1 bill or a $5 bill explain
morpeh [17]

Answer:

$5 bill

Step-by-step explanation:

If Rhonda has $13 and she has a $5 bill and 3 $1 bills, then she has

5 + 3(1) + x = 13

5 + 3 + x = 13

8 + x = 13

x = 5.

The last bill must be a $5 bill to equal the remaining $5.

8 0
2 years ago
Justify your reasoning
love history [14]

Answer:

Yes

Step-by-step explanation:

You can conclude that ΔGHI is congruent to ΔKJI, because you can see/interpret that there all the angles are congruent with one another, like with vertical angles (∠GIH and ∠KIJ) and alternate interior angles (∠H and ∠J, ∠G and ∠K).

We also know that we have two congruent sides, since it provides the information that line GK bisects line HJ, meaning that they have been split evenly (they have been split, with even/same lengths).

<u><em>So now we have three congruent angles, and two congruent sides. This is enough to prove that ΔGHI is congruent to ΔKJI,</em></u>

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7 0
2 years ago
When the scale factor between two circles is “x” the scale factor between the 1_________________________is also “x” and the scal
Effectus [21]

Answer:

When the scale factor between two circles is “x” the scale factor between the radius is also “x” and the scale factor of the area is “x^2"

this is only one possible answer. For example, instead of radius, you could have put diameter or circumference.

7 0
2 years ago
When 80% of a number is added to the number, the result is 252. what is the number
Rashid [163]
I Think The Answer Is 140.

The Expression: 0.8x + x = 252 Can Explain The Answer If x = 140.
Or: 1.8 Times x = 252 If x = 140.

3 0
2 years ago
A disc has a diameter of 21 cm while a mini disc has a diameter of 14cm. Write the ratio of the mini disc diameter to the disc d
Serjik [45]

Answer:

mini disc diameter:disc diameter

14cm:21cm = 7:10.5 = 3.5:5.25 = 1:1.5

4 0
2 years ago
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