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gtnhenbr [62]
3 years ago
11

Jane can make a handcrafted dream catcher in 6 days. Zena makes the same dream catcher in 4 days. If they work together making d

ream catchers, how many days will it take to make 15 dream catchers?
A) 2
B) 15
C) 21
D) 36
Mathematics
2 answers:
Pavel [41]3 years ago
6 0

Answer:

The answer is D

Step-by-step explanation:

In 36 days Jane can make 6 dreamcatchers and in 36 days Zena can make 9.

9+6=15

36/6=6

36/4=9

I hoped this helped a little bit :)

finlep [7]3 years ago
4 0

Answer:36

Step-by-step explanation:

I actually just answered this problem on a website the answer is 36.

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Joshua teaches an SAT preparation class where each student takes a pre-test on the first day of class and a post-
Lelu [443]

Answer:

Cannot be determined

Step-by-step explanation:

The scores are not independent

5 0
3 years ago
A can of soda weighs 336 grams. Find the weight in kilograms of 15 cans.
zaharov [31]

Answer:

5.04

Step-by-step explanation:

1 can equals to 336 grams

so 15 cans will equal to 336 X 15

which is 5040grams

now covert it into kg by dividing it by 1000

which 5.04

4 0
3 years ago
Do these pairs of values (x and y) represent two quantities that are
baherus [9]

Answer:

A. No, because not all of the pairs represent the same ratio

7 0
3 years ago
bacteria colonies can triple in size every 4 days. if you start with 40 bacteria microorganisms, how large would the colony be a
Westkost [7]

<span>Assuming the reaction is of 1st order, we can start using the formula for rate of 1st order reaction:</span>

dN / dt = k * N

Rearranging,

dN / N = k dt

Where N = amount of sample, k = rate constant, t = time

Integrating the equation from N = Ni to Nf and t = ti to tf will result in:

ln (Nf / Ni) = k (tf – ti)

Since k is constant, we can equate to situations. Situation 1 is triple in size every days, situation 2 is after 20 days.

ln (Nf / Ni) / (tf – ti) = k

ln (3Ni / Ni) / 4 = ln (Nf / 40) / 20

Calculating for Nf,

<span>Nf = 9,720 bacteria </span>

6 0
4 years ago
Read 2 more answers
Which linear inequality is represented by the graph?
Art [367]

Answer: The graph is represented by the inequality y>3x+2


Step-by-step explanation:

Linear inequality is like linear equation just we have inequality signs (<,>,≤,≥) instead of equal sign(=).

In the given question we have the linear inequality represented by graph

We can see the line in the graph passing through the point (-3,-7)

Let's check which option satisfy the point

1) y<3x+2 for this the line should be y=3x+2

⇒ -7=3(-3)+2

⇒-7= -9+2⇒-7=-7,which is true.

2) y>3x+2 which similar as first.

3) y<x+2 for this the line should be y=x+2

⇒ -7= -3+2

⇒-7=-1 which is not true.

4) y > x + 2 is similar to third.

Option 3) and 4) cannot be the required linear inequality.

Now from 1) and 2) , 2) should be the required linear inequality as the graph is shaded above the line and that must be for y (>) greater than inequality. [ for y (<) less than inequality the graph must be shaded below the line]

Therefore, 2)  y > 3x + 2 is the required linear inequality which is represented by the graph.

5 0
3 years ago
Read 2 more answers
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