Ask question

Ask question

All categories

3 years ago

14

Robert is three times as old as Jillian. Jillian is five years younger than Sarah. Write an algebraic equation that represents R

obert's age in terms of Sarah's age.

1 answer:

My name is Ann [436]3 years ago

6 0

3(s-5)=r
S is Sarah’s age and r is roberts age

You might be interested in

Express the interval using inequality notation.<br> (-♾,-11) U (7,♾)

gulaghasi [49]

The chosen topic is not meant for use with this type of problem. Try the examples below.

[-1,9)u(2,10]

(−1,2)∪(−4,0)

(−1,29)∪(26,50)

4 0

3 years ago

Tara wants to weigh her three stuffed animals. They will only fit on the scale two at a time. Together Addie and Missy weight 18

Pepsi [2]

Answer: Addie weighs 4 ounces

Missy weighs 14 ounces

Corky weighs 8 ounces

Step-by-step explanation:

Let a represent the weight of Addie.

Let m represent the weight of Missy.

Let c represent the weight of Corky.

Together Addie and Missy weigh 18 ounces. This means that

a + m = 18 - - - - - - - - - 1

Missy and Corky weigh 22 ounces. This means that

m + c = 22

m = 22 - c - - - - - - - - - - 2

Addie and Corky weigh 12 ounces. This means that

a + c = 12

a = 12 - c - - - - - - - - - - - 3

Substituting equation 2 and equation 3 into equation 1, it becomes

22 - c + 12 - c = 18

34 - 2c = 18

- 2c = 18 - 34 = - 16

c = - 16/ - 2 = 8

Substituting c = 8 into equation 2, it becomes

m = 22 - 8

m = 14

Substituting c = 8 into equation 3, it becomes

a = 12 - 8

a = 4

3 0

3 years ago

Assume Cylinder A and Cone B are the same height and the bases have the same radius. If A has a volume of 18π cm3, what is the v

Artemon [7]

The volume of a cone is (1/3) that of its similar cylinder.
Thus the volume of the cone B would be: $6 \pi cm^{3}$

5 0

3 years ago

Read 2 more answers

I need help<br><br><br><br> Thx guys

Evgesh-ka [11]

Plugging in the numbers 7x - 2y = 39 fitted and made sense

8 0

3 years ago

Read 2 more answers

An investigative bureau uses a laboratory method to match the lead in a bullet found at a crime scene with unexpended lead cartr

Basile [38]

Answer / Step-by-step explanation:

In this exercise, we know that the agency collected 1,829 bullets which according to the agency, all came from different source.

The number of pair of bullet is :

(1,829) = 1, 829 ! / 2! ( 1,829 - 2 ) = 1, 829 x 1,828 x 1827 ! / 2 x 1 x 1,827

( 2 )

= 6, 108,413,724 / 3654

= 1671,706.

Also, we know that the agency found 658 matches. According to this, the chance of false positive ( that is, the agencies find a match but the bullets are from two different source ) is

P (False positive ) = 658 / 671,706

= 0.000979.

The probability is small to an extent, therefore, we should have confidence in the agency forensic report and evidence

6 0

3 years ago