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yan [13]
3 years ago
14

You have 40 minutes to exercise at the gym, and you want to burn 300 calories total using both

Mathematics
1 answer:
Annette [7]3 years ago
6 0
A and b are the minutes spent on machine A and machine B, respectively.

a+b = 40
b = 40-a

8a + 6b = 300
8a + 6(40-a) = 300
8a + 240 - 6a = 300
2a = 60
a = 30
b = 40-a = 10

30 minutes on machine A and 10 minutes on machine B
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A factory used 99.19 kilograms of tomatoes to make 7 batches of pasta sauce. What quantity of tomatoes did the factory put in ea
____ [38]

Answer:

14.17 kilograms

Step-by-step explanation:

Find what quantity of tomatoes was in each batch by dividing the total amount of tomatoes by the number of batches:

99.19/7

= 14.17

So, the factory put 14.17 kilograms of tomatoes in each batch.

5 0
3 years ago
5(2x-6)-4(x-7) simplify
Inga [223]

5(2x-6)-4(x-7)

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3 0
4 years ago
What is the volume of the cynlinder?
vova2212 [387]
The volume of a cylinder can be found using the formula V=(pi)(r)^2(h)

V=(3.14)(8)^2(10)
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I think that is the answer
8 0
4 years ago
If c is between a and b then Ac= CB
rodikova [14]
It only works if C is the midpoint of AB
5 0
4 years ago
Read 2 more answers
Jon caught four fish that weighed a total of 252 pounds. The kingfish weighed twice as much as the amberjack and the white marli
Allushta [10]

Answer:

  • amberjack, 21 lbs
  • kingfish, 42 lbs
  • white marlin, 84 lbs
  • tarpon, 105 lbs

Step-by-step explanation:

Let k, a, m, t represent the weights of the kingfish, amberjack, marlin, and tarpon, respectively. The problem statement tells us ...

  • k = 2a
  • m = 2k
  • t = 5a
  • k + a + m + t = 252

Using substitution, we can rewrite the last equation as ...

... (2a) + (a) + 2(2a) + (5a) = 252

... 12a = 252 . . . . . collect terms

... a = 21 . . . . . . . . .divide by 12

Then k = 2a = 42; m = 2k = 84; t = 5a = 105.

8 0
3 years ago
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