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Lady bird [3.3K]
3 years ago
7

in Sean's fish tank there are six times as many goldfish as Guppies. There are a total of 21 fish in the tank. How many more gol

dfish are there than Guppies
Mathematics
1 answer:
Verizon [17]3 years ago
4 0
15 more. There are 3 guppies and 18 goldfish. Because 3+18=21 and 3x6=18
You might be interested in
Isotope ⁷⁹br has an abundance of 50.69%
Simora [160]

Answer:

79.986

Step-by-step explanation:

Let A represent isotope ⁷⁹Br

Let B represent isotope ⁸¹Br

From the question given above, the following data were obtained:

For Isotope A (⁷⁹Br):

Mass of A = 79

Abundance of A (A%) = 50.69%

For isotope B (⁸¹Br):

Mass of B = 81

Abundance of B (B%) = 49.31%

Relative atomic mass of Br =?

The relative atomic mass (RAM) of Br can be obtained as follow:

RAM = [(Mass of A × A%) /100] + [(Mass of B × B%) /100]

= [(79 × 50.69) /100] + [(81 × 49.31) /100]

= 40.0451 + 39.9411

= 79.986 amu

Thus, the relative atomic mass of Br is 79.986

5 0
3 years ago
What is an equation of a line with the given slope and y-intercept.<br><br> m = 2, b = 6
Schach [20]

Answer:

Slope intercept form is y=2x+b

Step-by-step explanation:

5 0
3 years ago
Solve for x. −35x+15&gt;7/20 Drag and drop a number or symbol into each box to correctly complete the solution.
BaLLatris [955]

Answer:

x < 293 / 700

Step-by-step explanation:

−35x + 15 > 7/20

Multiplying all through by 20

-700x + 300 > 7

-700x > 7 - 300

-700x > -293

Divide all through by 700

- x > - 293 / 700

Multiply all through by -

x < 293 / 700

7 0
3 years ago
John has $220 in his account and adds $25 to it each month. Cheryl has $100 in her account and adds $35 each month to her accoun
Morgarella [4.7K]

Answer:

$695

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
7. The bottom of a circular swimming pool
mote1985 [20]
<h2>Hello!</h2>

The answer is:

1017.88 square feet are blue.

<h2>Why?</h2>

To calculate how many square feet are blue, we need to calculate the area of the bottom of the circular swimming pool.

We need to remember that we can calculate the area of any circle using the following formula:

Area_{circle}=\pi radius^{2}

Now, we know that the diameter of the bottom is equal to 36 feet, so, we can calculate the radius of the bottom using the following formula:

diameter=2radius\\\\radius=\frac{diameter}{2}

So,

radius=\frac{36feet}{2}=18feet

Then, calculating the area we have:

Area_{bottom}=\pi radius^{2}=\pi 18ft^{2}=1017.88ft^{2}

Hence, we have that 1017.88 square feet are blue.

Have a nice day!

4 0
3 years ago
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