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lord [1]
3 years ago
8

Justin is 2 years older than one-third Marissa's age Amy is 4 years older than two times Justin's age then find Justin's age and

Amy's age of course it is 63 years old
Mathematics
2 answers:
Lana71 [14]3 years ago
6 0
Yes I am pretty sure
Molodets [167]3 years ago
4 0
Justin=j
Marissa=m
Amy=a

j=2+1/3m
a=4+2j
<span>a=63

63=4+2(2+1/3m)
63=4+4+2/3m
55=2/3m
(55)3=(2/3m)3
165=2m
82.5=m
63=4+4+2/3(82.5)
63=8+55
63=63


j=2+2/3(82.5)
j=2+55
j=57
57=2+2/3(82.5)
57=57</span>
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Evaluate 3x+4(y+3) when x is 5 less than the quotient of y and 3, and y=18.
romanna [79]

It is given that x is 5 less than the quotient of y and 3.

And given value of y is 18 .

So quotient of y and 3 is

\frac{18}{3} = 6

And 5 less than 6 =1

So we have y=18 and x=1

Given expression is

3x+4(y+3)

At x=1 and y=18, we will get

3(1)+4(18+3) =3 + 4(21)

= 3+84=87

4 0
3 years ago
The height of a weather balloon as it is launched can be represented by an exponential model in the form y = a* b^x where y is t
Reil [10]

Answer:

Step-by-step explanation:

4,15

4 0
3 years ago
Which expression could be used to determine the reduction of -4 and 3 1/4
Setler79 [48]

Answer:

The expression that could be used is (-4)(3) + (-4)(\frac{1}{4}) ⇒ B

Step-by-step explanation:

Let us revise the distributive property:

<em>The product of a number and the sum of 2 other numbers equal to the sum of the products of the number with the other 2 numbers</em>

  • a(b + c) = ab + ac

We will use this rule to solve the question

∵ The product of -4 and 3\frac{1}{4} = -4 × 3\frac{1}{4}

→ We can right 3\frac{1}{4}  as (3 + \frac{1}{4} )

∵ 3\frac{1}{4} = (3 + \frac{1}{4} )

∴ -4 × 3\frac{1}{4} = -4(3 + \frac{1}{4} )

→ By using the rule above

∵ -4(3 + \frac{1}{4} ) = (-4)(3) + (-4)(\frac{1}{4})

∴ -4 × 3\frac{1}{4}  = (-4)(3) + (-4)(\frac{1}{4})

∴ The expression that could be used is (-4)(3) + (-4)(\frac{1}{4})

3 0
3 years ago
Can someone explain how to get the answer, please? Thanks!
Irina18 [472]
The mean is 10,

The median is 10,

And there is no mode.



The mean of a set of numbers is the sum divided by the number of terms,

7+15+12+6+10=50

There are 5 numbers in the set,

50/5=10.
10 is the mean.



Arrange the data in an ascending order and the median is the middle value. If the number of values is an even number, the median will be the average of the two middle numbers,

6, 7, 10, 12, 15,

10 is in the middle so it is the median.



The mode is the element that occurs most in the data set. In this case, all elements occur only once, so there is no mode.




Just so you don’t confuse the data with the group sets,

The actual data set is 7, 15, 12, 6, and 10

This data paired with score column or group set means that,

10 people got a score of 1-10
6 people got a score of 11-20
12 people got a score of 21-30
15 people got a score of 31-40
And 7 people got a score of 41-50 :)
4 0
2 years ago
What is the distance between point A and point B?what is the ordered pair for each of the points plotted above?
Alekssandra [29.7K]

Answer:

A: (0,0), B: (3, -4), 5 units

Step-by-step explanation:

A: (0,0), B: (3, -4)

To find the distance, use the distance formula. Square-root((0-3)^2+(0-(-4))^2) ---> Square-root((-3)^2 + 4^2) ---> Square-root(9+16) ---> Square-root(25) ---> 5units.

6 0
3 years ago
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