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Kobotan [32]
3 years ago
13

Justin used 42 centimeters of tape to wrap 14 presents. How many presents did Justin wrap if

Mathematics
2 answers:
djyliett [7]3 years ago
8 0

Answer:

15 presents

Step-by-step explanation:

Since we are using unit rate, we have to find out how many centimeters he uses for 1 present. Therefore 42÷14=3 So he uses 3 centimeters of paper for 1 present. Since he used 45 centimeters of paper we divide that by 3 to see how many presents is in 45 centimeters. When dividing the answer is 15. Therefore he wraps 15 presents

Liono4ka [1.6K]3 years ago
7 0

Answer:

15 presents

Step-by-step explanation:

42 cm / 14 presents = 3 cm / 1

3cm / 1 presents = 45 / 15

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Answer the question asked. When necessary, round to the nearest hundredth.
11111nata11111 [884]

Answer:

0.555km p/h

shown as 555m  p/h

Step-by-step explanation:

First we convert km to meters

6k = 6000m

Time = distance / rate.

20/6 = 3.33333333 = 3hr + ( 0.33 x 60 = 19.8) - 3.20hr

then 3.33 / 6 = 0.555 km  = 555 meters p/h

7 0
3 years ago
In how many ways can 5 boys and 4 girls be seated on a bench so that the girls and the boys occupy alternate seats?​
Ne4ueva [31]

Answer:

2880 ways

Step-by-step explanation:

There can be only one arrangement in which boys and girls can sit.

G-B-G-B-G-B-G-B-G

but position of individual boy and girls can be changed.

So, there are 5 girls and 5 slots for them that means they can be arranged in 5! ways,

similarly boys have 4 slots, so they can be arranged in 4! ways.

now, one more thing to consider is that out of 5! arrangements of girls, with each arrangement boys can be arranged in 4! different positions.

so to get the total number of boys and girls arrangements together we would need to multiply the arrangements of both boys and girls.

so the desired answer would be: 5!*4! = 120*24 = 2880 ways.

3 0
3 years ago
If a electrical heater uses 12 amp of electricity at 110 volts how much power does it consume​
Vladimir79 [104]

Answer:

Power = current * voltage

Power = 12 * 110

Power = 1,320 watts

Step-by-step explanation:

6 0
3 years ago
Triangle ABC has angle measures as shown. (a) What is the value of x? Show your work. (b) What is the measure of angle C? Show y
Sladkaya [172]
All angles = 180 degrees
3(x-2)+35+52=180
distribute
3x-6+35+52=180
combine like terms 
3x+81=180
subtract 81 on both sides
3x=99
divide both sides by 3
x=33
plug in for x
3((33)+2)=
or 180-35-52=93
4 0
4 years ago
Read 2 more answers
How can I fing the volume of a fish tank?
likoan [24]

Answer:

You can measure from the inside of the tank or measure the outside and subtract the width of the tank walls to find the inside measurement. Next multiply the length width and depth measurements to find the cubic volume in cubic inches

Step-by-step explanation:

6 0
3 years ago
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