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3 years ago

12 less than a number y

Mathematics

1 answer:

iogann1982 [59]3 years ago

4 0

Step-by-step explanation:

Example 2: Write each phrase as an algebraic expression.

PhraseExpressionnine increased by a number x9 + xfourteen decreased by a number p14 - pseven less than a number tt - 7the product of 9 and a number n9 · n or 9nthirty-two divided by a number y32 ÷ y or

In Example 2, each algebraic expression consisted of one number, one operation and one variable. Let's look at an example in which the expression consists of more than one number and/or operation.

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Z varies jointly with x, and y, and z=7 when x= 2, y= 2

fomenos

Answer:

Step-by-step explanation:

Complete question:

Z varies jointly with x and y , x=2 and y=2, z=7. Find z when x=4 and y=8 using joint variation . (I need the problem worked out step by step)

If z varies jointly with x, and y, this is expressed as;

z = kxy

If z=7 when x= 2, y= 2

7 = k(2)(2)

7 = 4k

k = 7/4

To get z when x= 4 and y = 8

z = kxy

z =7/4 (4)(8)

z = 7*8

z = 56

Hence the value of z is 56

7 0

3 years ago

Find the area of the circle. Use 3.14 for pie. Do not round your answer.

SIZIF [17.4K]

<h3>given:</h3>

radius= 14 inches

the area of the circle.

<h3>solution:</h3>

$area = \pi {r}^{2}$

$a = \pi \times {14}^{2}$

$a = 615.75216$

$a = 615.75 \: {in}^{2}$

therefore, the area of the circle is 615.75 square inches.

3 0

3 years ago

What is the fifth term in the expansion (3x-2y)^6

olga2289 [7]

In this expansion there are 5 terms:

3, x, 2, y and 6

And from all of these, the fifth one is 6

Hope it helped,

BioTeacher101

6 0

4 years ago

___ divided by 3x3 =12

konstantin123 [22]

Answer:

108

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

You are at a trade show where you are selling baseball cards for $4 a card and buying baseball cards for $6 a card. If you start

Sati [7]

Answer:

200 +4c -6b

Step-by-step explanation:

Your ending balance is the sum of your beginning balance plus sales, less your purchases. If each sale nets $4, then c sales will increase your balance by 4c. If each purchase costs $6, then b purchases will reduce your balance by 6b.

Your ending balance is ...

200 +4c -6b

7 0

2 years ago