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lina2011 [118]
3 years ago
11

Needd helppp pleaseee

Mathematics
1 answer:
Charra [1.4K]3 years ago
5 0
Both 10,1 and can i get brainliest answer 
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The number of black cards in a pile is 4 times the number of red cards. There are 36
kompoz [17]

The required number of red cards is 9 in the pile.

Given that,
The number of black cards in a pile is 4 times the number of red cards. There are 36 black cards in the pile.
To determine how many red cards are there.

<h3>What is arithmetic?</h3>

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,

Let the number of the red cards be r, and the number of the black cards be b
Black cards in a pile are 4 times the number of red cards.
b = 4r
Now,
There are 36 black cards in the pile.
b = 36
4r = 36
r = 36 / 4
r = 9

Thus, the required number of red cards is 9 in the pile.

Learn more about arithmetic here:

brainly.com/question/14753192

#SPJ2


3 0
2 years ago
Read 2 more answers
Someone please help me quick I’m timed
Lisa [10]
It’s c because the x is exterior angles
8 0
3 years ago
The diameter of a circle is 16 kilometers.What is the circle's circumference?​
qaws [65]

The equation to find the circumference of a circle is ...

c = π × d

All we need to do to find circumference is to <em><u>multiply</u></em> the diameter (16km) by pi (π)

c = π × 16

c = 50.27

4 0
3 years ago
Read 2 more answers
Use the substitution method to solve the given system of equations. Write your answer as an ordered pair, (x, y).
Gnoma [55]

Answer:

(-3, -2)

Step-by-step explanation:

Look at the second equation, we can easily rearrange it to make x the subject.

x - 4y = 5

x = 4y + 5

Now lets put that into the second equation

2x - 2y = -2

2(4y + 5) - 2y = -2

6y + 10 = -2

6y = -12

y = -2

Now lets find x!

x = 4y + 5

x = 4(-2) + 5

x = -3

Now lets format the answer like the question says (ordered pair)

(-3, -2)

Recap: We used substitution and made an equation to work out one of the variables first, then found the second variable using the first.

3 0
3 years ago
Read 2 more answers
Factor out the greatest common factor. 10a3b−6a2b2
podryga [215]

Answer:

2a^2b(5a-3b)

If not then the other way is

5a-3b

Step-by-step explanation:

The GCF of 10a^3b and -6a^2b^2 is 2a^2b

So divide by that you will get

2a^2b(5a-3b)

4 0
3 years ago
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