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
Viefleur [7K]
2 years ago
9

8. Erin has a number of pens. James has 4 times as many pens as Erin. Together they have 35 pens. How many does

Mathematics
2 answers:
Assoli18 [71]2 years ago
6 0

Answer:

Erin has 7 pens and James as 28 pens.

Step-by-step explanation:

Let e = the number of Erin's pens

Let j = the number of James' pens

e + j = 35                          j = 4e

substitute in 4e for j in the first equation above.

e + j = 35

e + 4e = 35

5e = 35  Divide both sides by 5

e = 7  Plug 7 in for e in either equation above.

j = 4e

j = 4(7)

j = 28

natulia [17]2 years ago
4 0

Answer:

Erin has 8.75 pens or just 9 pens

Step-by-step explanation:

35÷4= 8.75 then round

then to cheak your answer you would do 8.75×4= 35.

You might be interested in
Double-Angle and Half-Angle Identiies [See Attachment] Question 4
Nesterboy [21]
Please make it brainleist

8 0
3 years ago
Read 2 more answers
Please help me on this’ gracias
blondinia [14]

Answer:

9,4,-1,-6

Step-by-step explanation:

You just need to plug in the x values into the equation and solve.

6 0
3 years ago
Read 2 more answers
The sides of a right triangle are x, x+21, and x+27. what is the length of the hypotenuse
mina [271]
Answer: 51 uinits

The three numbers are x , x + 21 and x + 27. 
The greatest of the 3 numbers is x + 27, so x + 27 has to be the hypotenuse.

----------------------------------------------
Pythagoras Theorem
----------------------------------------------

a² + b²  = c²

x² + (x+21)² = (x+27)²

x² + x² + 42x + 441 = x² + 54x + 729

x² - 12x -288 = 0

(x - 24)(x + 12) = 0

x = 24 or x = -12 (rejected, length cannot be negative)

----------------------------------------------
Find hypotenuse
----------------------------------------------
 Hypotenuse = x + 27 = 24 + 27 = 51 units

-----------------------------------------------
Answer: 51 units
----------------------------------------------

3 0
4 years ago
Read 2 more answers
I WILL GIVE YOU BRAINLIEST!!
ollegr [7]

Answer:

32 goldfish

Step-by-step explanation:

Given:

  • Number of fish tanks = 8
  • Volume of water per fish tank = 5,544 in³
  • Water required by 1 goldfish = min 1,386 in³

Number of fish per tank = water per tank ÷ water per goldfish

                                        = 5544 ÷ 1386

                                        = 4

Therefore, each tank can hold a maximum of 4 goldfish.

Greatest number of goldfish = number of tanks × fish per tank

                                               = 8 × 4

                                               = 32

3 0
2 years ago
Which one is it need help​
jeka94
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ To understand this, you need to know one rule:

when indices are separated by parenthesis, they multiply

As per this rule, the correct option would be C

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

5 0
3 years ago
Other questions:
  • Question 9 i mark as brainliest ​
    10·2 answers
  • Wilma and Betty are playing a number game. Wilma tells Betty, "I'm thinking of a number between 1 and 10. If I take the number a
    11·1 answer
  • Consider the quadratic equation x^2=4x-5. How many solutions does the equation have
    6·1 answer
  • Given:
    15·2 answers
  • What is the value of n?
    12·1 answer
  • What is 56.6 repeating when rounded to the nearest .1
    7·1 answer
  • )A triangle is shown on the graph:
    13·2 answers
  • Find the value of <br> (16/81)^3/4
    8·1 answer
  • X f(x)<br> -2 -1/200<br> -1 -1/20<br> 0 -1/2<br> 1 -5<br> 2 -50
    15·1 answer
  • Translate the shape A three squares right and one square down.What are the coordinates of the vertices of the image?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!