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3 years ago

What is a mathmatical expression? give an example

Mathematics

1 answer:

Jobisdone [24]3 years ago

5 0

Answer:

In algebra, we begin to see variables or letters that are used to represent numbers. An example of a mathematical expression with a variable is 2x + 3. In the expression 2x + 3, the coefficient of x is number 2, and it means 2 times x plus 3.

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At me farmers market, bananas coast $0.80 per pound.At another farmers market, bananas are sold in 5-pound bags for $4.50 per ba

Vedmedyk [2.9K]

Answer:

Step-by-step explanation:

At the first place is better because

$0.8 * 5 = $ 4

$4.5 / 5 = $0.9

Is more expensive in the another place

5 0

3 years ago

I NEED HELP I DONT KNOW THIS ANSWER

Papessa [141]

Answer:

Help with what

Step-by-step explanation:

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2 years ago

Find the number which when divided by 4 and increased by 12 is the same as when it is divided by 3 and decreased by 5

MatroZZZ [7]

Step-by-step explanation:

Let's make the number we're finding to be $a$ . So, it says that it will be divided by 4 and then added by 12 if we want this in algebraic expression it will be $\frac{a}{4} +12\\$ . It's also telling us that that expression is the same thing as our number divided by 3 and subtracted by 5. If we want an expression out of it it well be $\frac{a}{3} -5\\$ . Since they are the same, we have the equation below.

$\frac{a}{4} +12 = \frac{a}{3} -5\\$

All we have to do now is to find $a$ .

$\frac{a}{4} +12 = \frac{a}{3} -5 \\ \frac{a +48}{4} = \frac{a -15}{3} \\ (3)(a +48) = (a - 15)(4) \\ 3a +144 = 4a -60 \\ (60 -3a) + 3a +144 = 4a -60 +(60 -3a) \\ a = 204$

<h3>Answer:</h3>

Our number must be $204$ . I think

5 0

3 years ago

BRIANLIST ANSWER!! Please help on this one question ( if you’re good at this) thanks :))

ivann1987 [24]

Answer:

Step-by-step explanation:

(21²+10²)½ = 23.25= 23.3

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2 years ago

Order of operations what should be done first to evaluate 6+ (-5-7) ÷ 2 -8(3)

Maru [420]

Answer:-24

Step-by-step explanation:

6+(-5-7) ➗ 2-8(3)

6-12 ➗ 2-24

6-6-24

0-24=-24

3 0

3 years ago