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Pani-rosa [81]
1 year ago
11

Mary is four years older than Sue. If the sum of their ages is 16, how old are Mary and Sue?

Mathematics
2 answers:
dusya [7]1 year ago
6 0

Answer:

Sue is 6 and Mary is 10

Step-by-step explanation:

let Sue's age be x then Mary is x + 4 and the sum of their ages is

x + x + 4 = 16

2x + 4 = 16 ( subtract 4 from both sides )

2x = 12 ( divide both sides by 2 )

x = 6

x + 4 = 6 + 4 = 10

then Mary is 10 and Sue is 6

DedPeter [7]1 year ago
4 0

Answer: Mary 10 Sue 6

Step-by-step explanation:

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Answer:

He ran 3.25 on Tuesday

Step-by-step explanation:

The answer is 3.25 because 5.55 minus 2.3 is 3.25.

5 0
2 years ago
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Jesse has $3.40 in quarters and nickels. The number of nickels is 5 more than 2 times the number of quarters. How many quarters
dlinn [17]

Answer:

9 quarters

Step-by-step explanation:

From the question

Jesse has $3.40 in quarters and nickels

Quarters = q = number of quarters

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nickels = n = number of nickels

1 nickel = $0.05

Hence,

0.25q + 0.05n = $3.40 .......Equation 1

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n = 2q + 5

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0.25q + 0.05(2q + 5) = 3.40

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Therefore, Jessie has 9 quarters.

3 0
3 years ago
A curve has equation<br> y = x²(x - 2)<br> Work out the gradient of the curve at the point (3,9).
slava [35]

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2 years ago
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s2008m [1.1K]

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Median (Middle): 8

Mode (Most Common): 8

Range (Biggest - Smallest): 7

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