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alekssr [168]
3 years ago
9

A bag contains 40 red and green marbles. The number of green marbles, g, is 9 times the number of red mapples, . How many red ma

rbles are in the bag? O 4 O 6 O 34 O 36​
Mathematics
1 answer:
marin [14]3 years ago
4 0

Answer:

4

Step-by-step explanation:

You need to try out all the numbers.

lets start with 4

if there where 4 red marbles then there would be 9 times as many marbles

so 4 x 9 = 36

Now we add and see if the sum is 40

36 + 4 = 40

We got it on the first try

You can use the same method on more problems like these.

Hope this helps :)

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What is the range of the graph? A) (3, 5) B) [3, 5] C) (2, 5) D) [2, 5]
vaieri [72.5K]

Answer:

B. [3, 5]

Step-by-step explanation:

The range of a graph are the y-values that are plotted on the vertical axis (y-axis). In order words, the range values, are the possible set of output values of that are plotted on the vertical axis on the graph.

"[ ]" is usually used to denote the possible set of values.

Therefore, the range of the given graph, as we can see from the y-axis, include values from 3 to 5. Therefore, the range of the graph is [3, 5].

3 0
3 years ago
Your class is selling boxes of flower seeds as a fundraiser. The total profit p depends on the amount x that your class charges
Slav-nsk [51]

Answer:

$ 22.6

Step-by-step explanation:

Given that

Price charged for each box of seeds = x

Profit gained from from selling boxes of seeds = p

The equation of profit is modeled as

P(x) = 0.5x² + 36x - 179

As per given information if the fundraisers make a profit of  $379 then find the minimum price charged for each box of seed.

Now our above equation becomes

379 = -0.5x² + 36x - 179

Simplifying

379+179 = -0.5x² + 36x

558 = -0.5x² + 36x

0.5x² - 36x + 558 =0

multipying both sides of equation by 2

2(0.5x² - 36x + 558) = 2x0

x² - 72x +1116 = 0

Using quadratic formula we get the following factors

x= 49.4 or x= 22.60

As we can the smalles value is 22.6

So, they can charge 22.6 dollar for each bag of seeds in order to get profit of 379 dollars.



8 0
3 years ago
Read 2 more answers
−4(x−7)=36<br>what is x.
prohojiy [21]
-4x + 28 = 36
28 = 36 + 4x / - 36
-8 = 4x 
-2 = x
7 0
3 years ago
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77julia77 [94]

Answer:

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3 years ago
Change the equation to show what it would look like if you were getting the value of (b):
Dafna11 [192]
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3 years ago
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