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NNADVOKAT [17]
3 years ago
10

Diane is 25 years older than her son Craig. The sum of their ages is 105. How old are Diane and Craig?

Mathematics
2 answers:
Stells [14]3 years ago
5 0

Answer:

40 and 65

Step-by-step explanation:

Craig is 40.

Diane is 65.

40+25=65.

Diane is 25 years older than Craig.

40+20=105

ankoles [38]3 years ago
4 0

Answer:

Let Craigs age = x

Therefore Dianes age = 25 + x ( since she's 25 years older)

Dianes + Craigs age = (25 + x) + x = 105 (They said both of their ages sums up to 105)

25 + 2x = 105

2x = 80

x = 40

Craigs age is 40 years old.

Dianes age is 65 years old.

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Dmitriy789 [7]

42 ft

Source(s):

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4 0
3 years ago
A regular hexagon has an apothem measuring 14 cm and an approximate perimeter of 96 cm. a regular hexagon has an apothem with le
taurus [48]

<u>The approximate area of the </u><u>hexagon</u><u>  = </u><u>672 cm²</u>

What is hexagon ?

  • In geometry, hexagon is a polygon with 6 sides.
  • If the lengths of all the sides and the measurement of all the angles are equal, such hexagon is called a regular hexagon.
  • In other words, sides of a regular hexagon are congruent.

apothem of the hexagon = 14 cm

perimeter of the hexagon = 96 cm

Area of the hexagon = [(3√3) / 2] a²     ; where a is the measure of the side

hexagon has 6 sides.

Perimeter = 6a

96 cm = 6a

96 cm / 6 = a

16 = a

There are 6 triangles in the hexagon .

Area of a triangle = (height * base) / 2

A = (14 cm * 16 cm) / 2

A = 224 / 2

A = 112 cm²

The approximate area of the hexagon = 112 cm²  * 6 triangles = 672 cm²

Learn more about hexagon .

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7 0
1 year ago
8-2b = -2 find the solution to the equation
Paul [167]

Answer: 5

Step-by-step explanation:

  8-2b=-2

8-2b-8=-2-8

    -2b=-10

-2b/-2=-10/-2

       b=5

3 0
4 years ago
Juan's time in the race was 5.04 seconds and Tiauna's was 5.40. Explain who had the faster speed and by how much?
nasty-shy [4]

Answer:

speeds of Juan and Tiauna  are 0.1984 m/s and 0.1851 m/s respectively

Step-by-step explanation:

Given:  Juan's time in the race was 5.04 seconds and Tiauna's was 5.40 seconds

Let speed of Juan and Tiana's be J m/s and T m/s respectively

In the race both Juan and Tiauna will cover equal distance. Therefore, the speed and time would have reciprocal relationship

Speed ∝ 1/Time

This means J = 1/5.04 m/s

J= 0.1984 m/

and, T = 1/5.40 m/s

T= 0.1851 m/s

Therefore, speeds of Juan and Tiauna  are 0.1984 m/s and 0.1851 m/s respectively

3 0
3 years ago
To compare two products such as colas, a random sample is selected to taste two types of colas (A and B). Each selected subject
Nadya [2.5K]

Answer: The sample size would be needed = 385

Step-by-step explanation:

Let p be the prior population proportion.

Margin of error = E

When not estimate of p is given , the formula to calculate the minimum sample size <em>n</em> = 0.25(\dfrac{z^*}{E})^2 , where z* = critical value for given confidence interval.

Here z* for 95% confidence level is 1.96.

E=5%=0.05

Then n=0.25(\dfrac{1.96}{0.05})^2\approx385

Hence, the sample size would be needed = 385

8 0
3 years ago
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