1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lena [83]
2 years ago
13

Hoang has been a nurse for 5 years longer than Bill. Three years ago she had been there twice as long? How long has each been th

ere?
​
Mathematics
1 answer:
ZanzabumX [31]2 years ago
4 0

Answer:

Bill: 8 years

Hoang: 13 years

Step-by-step explanation:

Let's say Hoang has been a nurse for H years and Bill has been a nurse for B years.

Hoang has been a nurse for 5 years longer than Bill. This means that B + 5 = H

Next, 3 years ago, she had been there twice as long.

(B-3) and (H-3) represent Bill and Hoang 3 years ago respectively.

(B-3) * 2 = (H-3)

We thus have two equations

B+5 = H

(B-3) * 2 = H-3

Substitute B+5 for H in the second equation

2*B - 6 = B+5-3

2B-6 = B+2

add 6 to both sides to put all the constants on one side

2B = B + 8

subtract B from both sides to isolate the variable

B = 8

H = B+5 = 13

You might be interested in
So it’s 6 8 10 how to tell if it’s acute obtuse or right triangle
LekaFEV [45]

Answer:


Step-by-step explanation:

Acute: less than 90 degrees

obtuse: 90 degrees to 180 degrees

right angle: 90 degrees

7 0
3 years ago
Read 2 more answers
7 picture frames cost $15 at Harris Teeter. At Food Lion, 9 picture frames cost $17. Which is the better buy?
zheka24 [161]

Answer:

It is better to to buy from At Food Lion

Step-by-step explanation:

At Harris Teeter: 7 picture frames cost $15

Cost per picture frames = Total cost of picture frames / number of picture frames

= $15 / 7

= $2.14 per picture

At Food Lion: 9 picture frames cost $17

Cost per picture frames = Total cost of picture frames / number of picture frames

= $17 / 9

= $1.89 per picture

The cost of pictures frames Amat Food Lion is cheaper than at Harris Teeter

It is better to to buy from At Food Lion

3 0
3 years ago
Write a comparison sentence that represents the equation.<br><br> 5 x 9=45
GuDViN [60]

Answer:

Step-by-step explanation:

5 x 9 = 45

9 x 5 = 45

45 ÷ 9 = 5

45 ÷ 5 = 9

6 0
3 years ago
Find the perimeter of the parallelogram *<br> 10 inches<br> 5 inches<br> 8 inches
Paladinen [302]

Step-by-step explanation:

We know that in a parallelogram

  • Opposite sides are of equal length
<h3>The sides are,</h3>

\\ \:\:\:\:\sf {:}\dashrightarrow 5in,10in,10in,5in

<h3>we know,</h3>

\boxed{\sf Perimeter=Sum\:of\:all\:sides}

\\ \:\:\:\:\sf {:}\dashrightarrow Perimeter_{(Parallelogram)}=5+5+10+10

\\ \:\:\:\:\sf {:}\dashrightarrow Perimeter_{(Parallelogram)}=10+20

\\ \:\:\:\:\sf {:}\dashrightarrow {\underline{\boxed{\bf Perimeter_{(Parallelogram)}=30inches}}}

5 0
3 years ago
What is the correct answer?
Minchanka [31]
67.38 degrees

To find this, follow the steps below:

cos (B) = 5/13
cos -1 (cos(B)) = cos-1 (5/13)
The cos-1 and cos cancel each other out.

B = cos-1 (5/13)
B = 67.38

Hope this helps!
6 0
4 years ago
Other questions:
  • The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words per minute and a standard devi
    11·1 answer
  • Let's Make Words!<br> See how many words<br> you can make from<br> Merry Christmas
    11·2 answers
  • What is the distance between -2.2 and 8.4?
    6·1 answer
  • Please urgent answers in need
    13·1 answer
  • Which of the following is an advantage of a low center of gravity?
    9·1 answer
  • Ill mark brainly if its correct. a,b,c, or d ~ quickly please ~
    7·1 answer
  • What is the first step in solving this system of equations using elimination?
    13·2 answers
  • a plane, initially traveling 150 mi/hr 100 east of north, suddenly enters a region where the wind is blowing at 50 mi/hr from th
    12·1 answer
  • *26 POINTS* pls help
    10·1 answer
  • Solve 3cot (2x) =- Route3 for<br> x, 0 = x &lt; 360
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!