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4 years ago

What’s a coefficient

Mathematics

2 answers:

My name is Ann [436]4 years ago

5 0

Answer:

The number before a variable. For example, 4x. 4 would be the coefficient, and x would be the variable.

Ratling [72]4 years ago

5 0

Answer:

A numerical or constant quantity placed before and multiplying the variable in a algebraic expression

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Solve the simultaneous equations 4x+8y=-4 2y-5x=23

ad-work [718]

Answer:

x = -4, y = 3/2

Step-by-step explanation:

simplify the 1st equation by dividing each term by 4 to get:

x + 2y = -1

-5x + 2y = 23

Subtract to get: 6x = -24

x = -4

find 'y': 2y - 5(-4) = 23

2y + 20 = 23

2y = 3

y = 3/2

8 0

3 years ago

Read 2 more answers

Infinite algebra1,multi step equations.-18-6k=6(1+3k)

True [87]

Oh thats easy. It's a piece of cake. Just use your calculator

4 0

4 years ago

Which ordered pair is a solution to the equation? y=x3/4

Leni [432]

Answer:

(8,6)

Step-by-step explanation:

y=x3/4

y=8(3/4)

y=24/4

y=6

when you input 8 for x, you get 6 for y.

6 0

3 years ago

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In his boat, Sheldon can travel 45 mi downstream in the same time that it takes to travel 9 mi upstream. If the rate of the curr

Nataliya [291]

Answer:

9 mph

Step-by-step explanation:

-let x be the speed of current and t be time. The speed equation for both directions can then be represented as:

$Speed=\frac{Distance}{Time}\\\\\#Upstream\\(u-6)t=9\\\\\#Donwstream\\\\(u+6)t=45$

#Since t is equal in both, we can do away with t.

#We the divide the downstream equation by the upstream equation as:

$\frac{u+6}{u-6}=\frac{45}{9}\\\\(u+6)=5(u-6)\\\\u+6=5u-30\\\\4u=36\\\\u=9$

Hence, the boat's speed in still water is 9 mph

7 0

4 years ago

Select the correct answer.

SSSSS [86.1K]

Ahah coco die sucks math

4 0

3 years ago