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erma4kov [3.2K]
4 years ago
8

What is this answer?

Mathematics
1 answer:
Nataliya [291]4 years ago
5 0

Answer:

B

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

x = 2 m + 2 n + 2

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Does 23^-1 (mod 1000) exist? If yes solve it.
sweet [91]

Yes, 23 has an inverse mod 1000 because gcd(23, 1000) = 1 (i.e. they are coprime).

Let <em>x</em> be the inverse. Then <em>x</em> is such that

23<em>x</em> ≡ 1 (mod 1000)

Use the Euclidean algorithm to solve for <em>x</em> :

1000 = 43×23 + 11

23 = 2×11 + 1

→   1 ≡ 23 - 2×11   (mod 1000)

→   1 ≡ 23 - 2×(1000 - 43×23)   (mod 1000)

→   1 ≡ 23 - 2×1000 + 86×23   (mod 1000)

→   1 ≡ 87×23 - 2×1000 ≡ 87×23   (mod 1000)

→   23⁻¹ ≡ 87   (mod 1000)

3 0
3 years ago
Please help test due today! Will mark brainliest!
Flauer [41]

Answer:

Step-by-step explanation:

JT = 19. 3(4) + 7

37 = CJ + JT

37 = 3x + 6 + 3x + 7

37 = 6x + 13

24 = 6x

X = 4

6 0
3 years ago
Read 2 more answers
A gift basket has 2 soaps and 5 lotions and costs $20. A second basket has 6 spas and 15 lotions and cost $60. Is it possible to
kifflom [539]

A second basket has 6 spas--- I think you mean 6 soaps , so i will work with that

Answer:it is not possible to determine the price of the soap with the information given.

Step-by-step explanation:

Let s0ap be represented as x

and lotion be represented as y

2 soaps and 5 lotions costing  $20 gives us equation 1 as

2 x+ 5y= 20-------- equation 1

second basket with 6 soaps and 15 lotions and costing $60 gives us equation 2 as

6x + 15y= 60------equation 2

Step 2 -- Solving

2 x+ 5y= 20-------- equation 1

6x + 15y= 60--------equation 2

BY elimination method, we  multiply equation 1 by (3)

2x + 5y= 20  x (3)

6x + 15y=60-------equation 3

Subtraction of equation 3 from equation 2 gives us

6x + 15y=60-------equation 3

-6x + 15y= 60--------equation 2

0x +0y=0  which is no solution

Therefore it is not possible to determine the price of the soap

3 0
3 years ago
Which angles are supplementary to 14 ? select all that apply.
Furkat [3]
Answer will be 15>
Supplementary angles are two angles with the sun of 90 degrees
5 0
3 years ago
Read 2 more answers
Given a circle with a radius of 4, which is the circumference? A. 4 B. 6 C. 8 D. 12
o-na [289]

Circumference = 2 x Pi x R

if we use 3.14 as pi, you would do 2 x 3.14 x 4, which would equal 25.12, i’m not sure if it was meant to be rounded to 25, but none of the multiple choice answers would be correct

5 0
3 years ago
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