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3 years ago

What is the solution to y + 8.5 = 17.2?

Mathematics

2 answers:

Flura [38]3 years ago

8 0

Answer:

y =8.7

Step-by-step explanation:

y + 8.5 = 17.2

Subtract 8.5 from each side

y +8.5-8.5 = 17.2 -8.5

y =8.7

Alenkinab [10]3 years ago

6 0

Answer:

8.7

Step-by-step explanation:

y + 8.5 = 17.2

combine the like terms

y = 17.2-8.5

y=8.7

verify

y + 8.5 = 17.2

8.7+8.5=17.2

17.2=17.2

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horrorfan [7]

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2 years ago

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2 years ago

A chemical balance needs to weigh 237g using weights of 50g, 20g, 10g and 1g. How many of each weight is needed?

Delicious77 [7]

The required number of weights used in chemical balance to weigh 237g is 4,1,1,7 respectively.

What is mathematical expression?

A mathematical expression expression in mathematical is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Here, it is given that :

A chemical balance needs to weigh 237g using weights of 50g, 20g, 10g and 1g.

Now, let us find the number of weights for each weight type :

For 50g weight the maximum number of weights needed will be 4 that is :

50g x 4 = 200g

Now, for 20g weight the maximum number of weights needed will be 1 that is :

20g x 1 = 20g

Now, for 10g weight the maximum number of weights needed will be 1 that is :

10g x 1 = 10g

Now, for 1g weight the maximum number of weights needed will be 7 that is :

1g x 7 = 7g

Adding all the weights we get :

200g + 20g + 10g + 7g = 237g;

which is the required weight and the number of weights used is 4,1,1,7 respectively.