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Mandarinka [93]
3 years ago
9

a brand of cereal had 1.2 milligrams of iron per serving. then they changed their recipe so they had 1.8mg of iron per serving.

What was the percent increase in iron?
Mathematics
1 answer:
lisov135 [29]3 years ago
6 0
To get the percent of increase, we will simply follow these steps:
1- get the difference between the two numbers:
difference = 1.8 - 1.2 = 0.6 mg

2- divide the difference by the original number and then multiply the quotient by 100 to get the percentage
% of increase = (0.6/1.2) * 100 = 50%
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Answer:

≈ 5.5 minutes.

Step-by-step explanation:

Let m = number of minutes on the trampoline.

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She was on the trampoline for approximately 5.5 minutes.

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3 years ago
The school production of Our Town' was a big success. For opening night. 434 tickets were sold. Students paid $4.00 each, while
Alex73 [517]

Answer:

286 students attended

148 non students attended

Step-by-step explanation:

Given

Tickets = 434

Students = \$4.00

Non-Students = \$6.00

Total = \$2032.00

Solving (a): Number of students

Represent students with S and non students with N

So:

S + N = 434 --- (1)

4S + 6N = 2032 --- (2)

Make N the subject of formula in (1)

N = 434 - S

Substitute 434 - S for N in (2)

4S +6(434 - S) = 2032

Open Bracket

4S + 2604 - 6S = 2032

Collect Like Terms

4S - 6S = 2032 - 2604

-2S = -572

Divide through by -2

S = 286

<em>Hence; 286 students attended</em>

Solving (b):

Recall that

N = 434 - S

N = 434 - 286

N = 148

<em>148 non students attended</em>

4 0
3 years ago
Please help me I would really appreciate it this really affects my grade need the answer the ASAP
Drupady [299]

Answer:

27/6, 4 3/6, or simplified version 4 1/2

Step-by-step explanation:

Always convert the mixed numbers into an improper fraction before you solve, this makes it easier to solve.

2 4/6 = 16/6

1 5/6 = 11/6

3 4/6 = 22/6

Now we solve. Remember, you do NOT add the denominator, leave it as 6 not 12. You only add the numerator.

16/6 + 11/6 = 27/6, 4 3/6 or simplified as 4 1/2

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Answer:

Step-by-step explanation:

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