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Jobisdone [24]
3 years ago
15

Harvey is 3 times as old as Jane. The sum of their ages is 48 years. Find the age of each.

Mathematics
2 answers:
Marta_Voda [28]3 years ago
6 0
Alright, let's answer this -

Half of 48 is 24... 

Half of 24 is 12...

12 three times is 36...

36 + 12 is equal to 48. =)
adoni [48]3 years ago
3 0
H = Harvey
j = Jane

Harvey is 3 times as old as Jane = 3 times j

<span>The sum of their ages is 48 years.

sum = addition
 
The keyword is means use a equal sign so..

h + j = 48

h = 3 times j

3j + j = 48
4j = 48
4j / 4 = 48 /4 
j = 12

j = 12

Now lets find for Harvey. Harvey = 3 times j

Harvey = 3j = 3 times 12 = 36

Jane = 12
Harvey = 36

</span>
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Door
maksim [4K]

Answer:

77

Step-by-step explanation:

that is the answer i got i did a quiz with the same question not too long and i got a 100 and i putt 77 aas my answer!!!!!!!!1

6 0
3 years ago
Determine the amplitude or period as requested. Period of a y = - 1/3 * sin x - 1/3 pi/3 1/3 d 2pi
zysi [14]

Answer:

Period = 2\pi

Step-by-step explanation:

Given

y = -\frac{1}{3} * \sin(x - \frac{1}{3})

Required

Determine the period

A sine function is represented as:

y =A \sin(Bx + C) + D

Where

Period = \frac{2\pi}{B}

By comparing:

y =A \sin(Bx + C) + D and y = -\frac{1}{3} * \sin(x - \frac{1}{3})

Bx = x

So:

B = 1

So, we have:

Period = \frac{2\pi}{B}

Period = \frac{2\pi}{1}

Period = 2\pi

Hence, the period of the function is 2\pi

6 0
3 years ago
I think I got this wrong I need help
JulijaS [17]

Answer:

I think 3/4 will be the answer if you let

(-5 2) =(x1 y1)

(3 8) =( x2 y2)

y1-y2/x2-x2

8-2/3+5

6/8

3/4

8 0
3 years ago
a) The weekly wages of employees of Volta gold are normally distributed about a mean of $1,250 with a standard deviation of $120
Fantom [35]

Answer:

0.7102

0.8943

0.3696

Step - by - Step Explanation :

A.) Between $1320 and $970

P(Z < 1300) - P(Z < 970)

find the Zscore of each scores and their corresponding probability uinag the standard distribution table :

P(Z < (x - μ) /σ) - P(Z < (x - μ) / σ))

P(Z < (1320 - 1250) /120) - P(Z < (970 - 1250) / 120))

P(Z < 0.5833) - P(Z < - 2.333)

0.7200 - 0.0098 = 0.7102 (Standard

=0.7102

B.)Under 1400

x = 1400

P(Z < 400)

P(Z < (x - μ) /σ)

P(Z < (1400 - 1250) /120)

P(Z < 1.25) = 0.8943

C.) Over 1290

P(Z > 1290)

P(Z < (x - μ) /σ)

P(Z > (1290 - 1250) /120 = 0.3333

P(Z > z) = 1 - P(Z < 0.3333) = P(Z < 0.3333) = 0.6304

P(Z > 0.3333) = 1 - 0.6304 = 0.3696

4 0
2 years ago
Question 9 of 10
Kay [80]

Answer: A. (2, 5), (3, 6), (6,9)

Step-by-step explanation:

Each value of x maps onto only one value of y.

7 0
2 years ago
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