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wolverine [178]
3 years ago
5

48 POINTS! PLEASE HELP! Show work please THANKS

Mathematics
2 answers:
Montano1993 [528]3 years ago
5 0

Answer:

c

Step-by-step explanation:

x times 3

CaHeK987 [17]3 years ago
4 0

Answer:

C  multiply the first equation by 3

Step-by-step explanation:

3x-y =5

2x+3y = 10

We want to eliminate y

Since the first equation has a negative 1y  and the second equation has 3y

I would multiply the first equation by 3  and then the y's cancel

3(3x-y =5)

9x -3y = 15

2x+3y = 10

------------------

11x = 25

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Jack and Jim went biking. Jack biked for 5 1/3 hours with average speed 12 1/2 miles per hour. Jim traveled exactly 1 1/5 as far
ahrayia [7]
Given that Jack biked for 5 \frac{1}{3} hours with an average speed of  12 \frac{1}{2} miles per hour.

The distance travelled by Jack is given by

d=speed\times time \\  \\ =12 \frac{1}{2}\times5 \frac{1}{3}= \frac{25}{2} \times \frac{16}{3}  \\  \\ = \frac{200}{3} =66 \frac{2}{3} \ miles

Given that Jim travelled exactly 1 \frac{1}{5} as far as Jack did, then the distance Jim travelled is given by

d=1 \frac{1}{5} \times66 \frac{2}{3}  \\  \\ = \frac{6}{5} \times \frac{200}{3} =80

Therefore, the length of Jim's journey is 80 miles.
3 0
3 years ago
2 thousands + 12 hundreds the sum in standard form
brilliants [131]
3200 is what I guess lol
5 0
3 years ago
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a cake divided into 10 equal slices.kim ate 3/5 of 1/2 of cake. what part of the whole cake did kim ate? ​
joja [24]

Answer:

3/10 of the whole cake

Step-by-step explanation:

When you divide a cake in halve you get 5 pieces on each side, if Kim ate 3/5 of 1/2 of the cake, then she ate 3 pieces, so she ate 3/10 of the cake, and other way to figure this out is multiplying the two fractions, 3/5 x 1/2 = 3/10

8 0
3 years ago
Please someone help me
irina1246 [14]
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Add this to the area of the rectangle, 9x18=162, and 162+12=174.

The area is 174.
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Answer:

6.67% is as close as you can get

Step-by-step explanation:

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