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Allushta [10]
3 years ago
15

HELP ME PLEASE!!!

Mathematics
1 answer:
Kobotan [32]3 years ago
8 0

Answer:

x=2 , y=1

Step-by-step explanation:

Since the second equation is fully simplified and we know what x equals, we plug the entire equation of x in for x in the top equation:

5(3y-1)+10y=20

Now solve for y.

y=1

Now plug y back into the bottom equation and solve for x.

x=3(1)-1

x=2

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laiz [17]
It is a function because they are.
3 0
3 years ago
Evaluate the function:<br><br> f(x)=4x−1, find f(9)
Eddi Din [679]

Answer:

f(9) = 35

Step-by-step explanation:

To solve this, you can take 9 and replace both x's with it and then complete the equation;

f(x) = 4x - 1

f(9) = 4(9) - 1

f(9) = 36 - 1

f(9) = 35

Hope this helps!

3 0
3 years ago
A cylinder has a radius of 7 inches and a height of 13 in. What is the volume<br> of the cylinder?
madreJ [45]

Answer:

2,637.18 in^{3}

Step-by-step explanation:

The formula for finding the volume of a cylinder is....

V = π r^{2}h

π = 3.14

Radius = 7

Height = 13

Now that we have what we need, we can substitute the numbers into the equations to get our volume

V = π r^{2}h

V = 3.14 * 7^{2} * 13

V = 3.14 * 49 * 13

V = 202.86 * 13

V = 2,637.18

The volume of the cylinder is 2,637.18 in^{3}

Hope this helped!

have a supercalifragilisitcexpialidocious day!

5 0
3 years ago
Answer
sergij07 [2.7K]

Answer:

Answer:

1). Option (A)

2). Option (A)

Step-by-step explanation:

1). A worker bee has the mass = 0.00011 kg

  In scientific notation we can convert the mass of bee as,

  0.00011 =

                =

  Since 1.1 ≈ 1,

  Therefore, 1.1 × 10⁻⁴ ≈ 1 × 10⁻⁴ kg

  Option (A) is the answer.

2). An African elephant has a mass = 8139 kg

   In scientific notation,

   8139 = 8.139 × 10³

   Since, 8.139 ≈ 8

   Therefore, 8139 kg = 8.139 × 10³ kg

   Option (A) is the answer.

Step-by-step explanation:

Hope this helps! ;)

3 0
3 years ago
Read 2 more answers
Can you help me with this question?
Virty [35]

Answer:

2/3

1

3/2

Step-by-step explanation:

\frac{27}{7} n>\frac{4}{3}

n>\frac{7}{27}*\frac{4}{3}

n>\frac{28}{81}

5 0
3 years ago
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