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Zigmanuir [339]
3 years ago
9

What is the gcf of 7 and 28

Mathematics
2 answers:
dexar [7]3 years ago
6 0

Answer:

7

Step-by-step explanation:

The greatest common factor of 7 and 28 is 7.

valentinak56 [21]3 years ago
4 0

Answer: 7

The greatest common factor of 7 and 28 because 7 is the maximum number that goes into 7 and is also a multiple of 28.

Hope this helps!  :)

Step-by-step explanation:

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scoray [572]

Answer:

Step-by-step explanation:

hello :

cos66° = x/14

x= 14× cos66°

x= 14× 0.41

x=5.74

5 0
3 years ago
Troy and Lisa were shopping for school supplies. Each purchased different quantities of the same notebook and thumb drive. Troy
kari74 [83]

Answer:

Notebook is $4

Thumb drive is $23

Step-by-step explanation:

Let notebooks be x and thumb drives be y

6x+7y=$185

14x+12y=$332

These two are simultaneous equation. Multiplying the first equation by 7 and second by 3 we obtain

42x+49y=$1295

42x+36y=$996

Subtracting the third equation from the fourth

996-1295=-$299

(36-49)y=-23y

-23y=-$299

y=$299/13=$23

To get the value of x, we substitute the value of y into the first equation

6x+(7*23)=$185

6x=$185-$161

6x=$24

x=$4

Therefore, price of notebook is $4, price of thumb drive is $23

4 0
3 years ago
Please help! If possible, please word your explanation simply.
Nesterboy [21]

Answer: It is because if ∠N and ∠K are congruent and are same in size and shape.

8 0
3 years ago
Read 2 more answers
A moving trailer with a speed of 70km/h slows down its speed by 15% within 30 seconds. calculate the declaration of the trailer.
antoniya [11.8K]

Answer:

declaration = - 0.55 m/s²

Step-by-step explanation:

The declaration is a negative accelaration.

Therefore:

a = \frac{v-u}{t}

a      = ?

v      = 70 of 15% = 10.5 km/h to m/s = 2.9 m/s

u = 70 km/h to m/s = 19.4 m/s

t = 30 seconds

a = \frac{2.9-19.4}{30}\\

a = - 0.55 m/s²

7 0
3 years ago
A collection of coins consists of dimes and nickels .The number of dimes is two more than the twice the number of nickels.The va
CaHeK987 [17]

27 dimes for my answer

hope it works

7 0
3 years ago
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