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
Ira Lisetskai [31]
3 years ago
7

Sheila has 5 times as many markers as Dave. together they have 18. how many markers does Sheila have???

Mathematics
2 answers:
wariber [46]3 years ago
7 0
5d+d=18
18 divided by 6 is 3 so Sheila has 15 markers and Dave has 3
Tems11 [23]3 years ago
5 0
Sheila has 5 times.
Dave has 1 time.
Together they have (5 + 1) = 6 times.

6 times = 18

Divide each side by 6 :    1 time = 3

Sheila has 5 times = (5 x 3) = <em>15 markers</em>.

Dave has 1 time = 3 markers.

Total = (Sheila + Dave) = (15 + 3) = <u>18 markers</u>.
Check, check , and double check.
You might be interested in
A 33 gram sample of a substance that's<br> used to detect explosives has a k-value<br> of 0.1467.
romanna [79]

Answer:From the attached graphic, Half-life = ln (.5) / k

Half-life =.693147 / 0.1142

= 6.0695884413 days

Step-by-step explanation:The value of "k" should be negative and should have units associated with it.

3 0
3 years ago
Given f(x)=x^2-2x find f(6)
-BARSIC- [3]

Step-by-step explanation:

In the picture, I hope that it's a clear solution.

7 0
3 years ago
Read 2 more answers
Which shows a perfect square trinomial?
anastassius [24]
The answer is <span>c. 16x2 + 24xy + 9y2.

Since we need trinomial (three term expression) choices a and b are incorrect because they have only two terms.

So, our square trinomial is a</span>² + 2ab + b² or a² - 2ab + b²
a² + 2ab + b² = (a + b)²
a² - 2ab + b² = (a - b)²

Let's check choices c and d:
c) 16x² + 24xy + 9y²
a² = 16x²
a² = (4x)²
a = 4x

b² = 9y²
b² = (3y)²
b = 3y

a² + 2ab + b² = (4x)² + 2 * 4x * 3y + (3y)² = 16x² + 24xy + 9y²
CORRECT

d) 49x² - 70xy + 10y²
a² = 49x²
a² = (7x)²
a = 7x

b² = 10y²
b² = (y√10)²
b = y√10

a² + 2ab + b² = (7x)² + 2 * 7x * y√10 + (y√10)² = 49x² + 14xy√10 + 10y²
INCORRECT

So, c) is correct answer
8 0
4 years ago
Read 2 more answers
You reflect the point ( -7, -6) across
Leokris [45]
Reflecting is pushing it across from one side to another.
The answer would be (7,6)
Sorry I'm late.
4 0
3 years ago
What is the equation of the line h Th ya has a y intercept of (0,-3) and passes through the point (-9,-9)
Nikolay [14]

Answer:

The line equation is given as: 3 y = 2 x - 9

Step-by-step explanation:

Here, Y intercept   is at point ( 0.-3)

So, at x = 0, y = -3

or, C  = -3

Also, the point on the equation line is (x,y)  = (-9,-9)

Now, by <u>SLOPE INTERCEPT FORM</u> of a line equation,we get:

y = m x + C   :  m  = slope of line  ......... (1)

So, substituting the values of C and (x,y) , we get:

-9  = m (-9)  + (-3)  

or, -9 + 3  = - 9 m

or, m =  -6/-9  = 2/3

or, m = 2/3

Now, substitute the value of m back in to the line equation (1)

y = m x + C   \implies  y = (\frac{2}{3}) x - 3\\\implies 3y = 2x - 9

Hence, the line equation is given as: 3 y = 2 x - 9.

5 0
3 years ago
Other questions:
  • Jody made 10 party invitations. yesterday she mailed 4 of them. what decimal represents the number of invitations that have been
    9·1 answer
  • What's is the GCF of 18, 42 how your work
    5·2 answers
  • What is 1 3/5 as a improper fraction
    8·1 answer
  • To paint a sunset, you make a shade of orange paint using 5 drops of red paint for every 8 drops of yellow paint. If you use 15
    14·1 answer
  • Type your answer and then click or tap Done.<br> Simplify -(x-2y) - y.
    9·2 answers
  • 5/12 divided by 1/5 <br> just did see this on here so i added it!
    9·1 answer
  • Oi lend a hand here? Math isn't my thing :P​
    10·2 answers
  • In a class of 30 high school
    6·2 answers
  • 2p – 194.99 = 284.97
    14·1 answer
  • Hello, please help me with this, instructions shown in pictures
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!