Algebraic expression for 5 times a number

Mathematics

1 answer:

Step2247 [10]3 years ago

3 0

It could be 5x, 5 being the digit, x being "a number"

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SIMPLEST FORM PLEASE!! And I suppose it is supposed to be in a fraction

STALIN [3.7K]

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7 0

3 years ago

Three sets have 5, 10, 15 elements, respectively. How many elements can their union and intersection have?

Degger [83]

Answer:

$Union = 15$

Step-by-step explanation:

Given

$n(A) = 5; n(B) = 10; n(C) = 15$

Solving (a): Possible union elements

This is the represented by element with the largest number of the sets

i.e.

$Union = 15$

Solving (b): Possible intersection elements

This is the represented by element with the least number of the sets

i.e.

$Intersection = 5$

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3 years ago

Martin had 2 4/5 pounds of grapes left which expression shows the pounds of grapes martin has if he doubles his current account

ICE Princess25 [194]

(2)(2)+(2)(4/5)
I hope this helps you!

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4 years ago

Read 2 more answers

Solve the following system using a matrix. 7a - b = -1 -4a - 2b = -2

Assoli18 [71]

1. a=-1+b/7 is the right answer. First you had to add by b from both sides of equation, and it gave us, $7a-b+b=-1+b$ . And then simplify, and it gave us, $7a=-1+b$ . Divide by 7 from both sides of equation, and it gave us, $\frac{7a}{7}=-\frac{1}{7}+ \frac{b}{7}$ . Finally simplify, and it gave us the answer is a=-1+b/7 is the right answer.

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2. a=-b-1/2 is the right answer. First you had to add by 2b from both sides of equation, and it gave us, $-4a-2b+2b=-2+2b$ . And then simplify, and it gave us, $-4a=-2+2b$ . Next you can also divide by -4 from both sides of equation, and it gave us, $\frac{-4a}{-4}=-\frac{2}{-4}+\frac{2b}{-4}$ . Finally simplify, and it gave us the answer is a=-b-1/2 is the right answer. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie