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iren [92.7K]
3 years ago
15

Solve the system by Substitution y = 3x - 6 6x + 4y = 12

Mathematics
2 answers:
Nataly_w [17]3 years ago
6 0
Answer-
X-0
Y-2

Hope this helps
Mrrafil [7]3 years ago
5 0

Answer:

x= 0 y= 2

Step-by-step explanation:

6x+4y=12

6x+4(3x-6)=12

6x+12x-24=12

18x-24=12

    +24  +24

18x=36

/18    /18

x=2

y=3x-6

y=3(2)-6

y=6-6

y=0

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I need help finding the angles. The answer Isn't even
mart [117]

The 3 inside angles of a triangle equal 180.

Add the 3 angles together to equal 180:


X + (5x-20) + 4x = 180

Simplify the left side by adding like terms:

10x-20 = 180

Add 20 to each side:

10x = 200

Divide both sides by 10:

x = 20


Angle A = x = 20

Angle B = 4X = 4(20) = 80

Angle C = 5x-20 = 5(20) -20 = 100-20 = 80

6 0
3 years ago
The perimeter of a yard is 25 yards. if the length of the yard is 5, what is the width of the yard?
irina [24]

Answer:

the width would be 7.5

Step-by-step explanation:

6 0
3 years ago
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What is 1 2/7 divided by 1 1/7
pickupchik [31]

1.125

have a luvly day! :)

8 0
3 years ago
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The sum of the digits of a two-digit number is 7. If the digits are reverses, the new number is 9 more than the original number.
____ [38]

25

Step-by-step explanation

Let the ones's digit =x.

So, sum of the digits =7

Tens's digit =7−x

Original no. =10(7−x)+x=70−10x+x=70−9x

Reversed no. =10x+7−x=9x+7

2(orig no) = reversed no. −2

2(70−9x)=9x+7−2

140−18x=9x+5

27x=135

x=5

Ten's digit =7−5=2

No. =25

5 0
3 years ago
a positive integer is nice if there is a positive integer with exactly four positive divisors (including and ) such that the sum
antoniya [11.8K]

Answer:

A positive integer with exactly four positive divisors (including and ) such that the sum of the four divisors is equal to The sum of four divisors is equal to 45360.

What is an integer?

Zero, a positive natural number, or an unsigned negative integer are all examples of integers. The inverses of the equivalent positive numbers, which are additive, are the negative numbers. The boldface Z or blackboard bold "Z" is frequently used in mathematical notation to represent a collection of numbers.

Step-by-step explanation:

We know That total No. of factors

=product of (prime no′s power+1)

If N is the number of different divisors:

N=(p1​+1)⋅(p2​+1)⋅⋅⋅(pn​+1)

100= 2^2 × 5^2

=2×2×5×5= (1+1)(1+1)(4+1)(4+1)

Then the integer n=  a1^p1​​⋅a2^p2​​⋅⋅⋅⋅an^pn​​

For the smallest value: p1​=4,p2​=4,p3​=1,p4​=1

Then,

n=a1^4​×a2^4​×a3^1​×a4^1​

=24⋅34⋅51⋅71

=16⋅81⋅5⋅7

=45360

Hence, the positive integer with exactly four positive divisors (including and ) such that the sum of the four divisors is equal to The sum of four divisors is equal to 45360.

To learn more about the integers from the given link

brainly.com/question/929808

#SPJ4

4 0
1 year ago
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