All categories

3 years ago

Write an expression for the following: "the product of 3 and the sum of a number and 2 |

Mathematics

1 answer:

Archy [21]3 years ago

7 0

Answer:

3(2 + x)

Step-by-step explanation:

You have to multiply 3 by the sum of 2 and any number, or x. So if you put the expression of 2 + x in parenthesis, and 3 next to it. You'll get your answer.

You might be interested in

Debbie’s employee has reached her 1-year anniversary with the company and gets a 10% raise. The employee used to earn $15.00 per

Korvikt [17]

Answer:

$660

Step-by-step explanation:

15x40x1.10=660

6 0

3 years ago

Convert fraction to decimal 1/16

Alborosie

.0625 is the answer. Hope this helped

5 0

3 years ago

Read 2 more answers

Select the correct answer.

Finger [1]

Answer:

$(c)\ f(5) < g(3)$

Step-by-step explanation:

Given

$f(n) = 2(n-1) -1$

$g(n) = 3n + 6$

Required

Which is correct

$(a)\ g(6) < f(6)$

Calculate g(6) and f(6)

$f(n) = 2(n-1) -1$

$f(6) = 2(6 - 1) -1 = 2*5-1=9$

$g(n) = 3n + 6$

$g(6) =3*6 +6 =24$

(a) is false, because g(6) > f(6) i.e. 24 > 9

$(b)\ f(7) > g(10)$

Calculate f(7) and g(10)

$f(n) = 2(n-1) -1$

$f(7) = 2*(7-1)-1=2*6-1=11$

$g(n) = 3n + 6$

$g(10) =3*10+6=36$

(b) is false, because f(7) < g(10) i.e. 11 <36

$(c)\ f(5) < g(3)$

Calculate f(5) and g(3)

$f(n) = 2(n-1) -1$

$f(5) =2 *(5-1)-1 = 2*4-1=7$

$g(n) = 3n + 6$

$g(3) = 3*3+6=9+6=15$

(c) is true, because f(5) < g(3) i.e. 7 <15

5 0

3 years ago

Which line has the same slope as the line passing through (-4,-1)and (-1,8)?

marusya05 [52]

Answer:

A: 9x-3y =5

Step-by-step explanation:

slope of the line = (8-(-1))/(-1)-(-4) = 3

so y = mx+ c , where m= slope

the equation 9x-3y= 5 has the slope 3 since we can make y the subject of the formula to get

y= 3x - 5/3..here m is also equal to 3

7 0

3 years ago

A man can buy 20 mangoes or 30 oranges. If he wants a each amount of each, how many of each would he get? Write an EQUATION to s

DochEvi [55]

Answer:

Step-by-step explanation:

In this question, there are two variables: the number of mangoes(y) bought and the number of oranges bought(x).

Let's say the man have z money, mangoes price is $\frac{1}{20}$ z and the oranges price is $\frac{1}{30}$ z. The equation for money and number of mangoes and oranges will be:

money = mango price * mangoes bought + orange price * orange bought

z= $\frac{1}{20}$ z * x + $\frac{1}{30}$ z *y

1= $\frac{1}{20}$ x + $\frac{1}{30}$ y

- $\frac{1}{30}$ y= $\frac{1}{20}$ x -1

y= -1.5x + 30

y= 30 - 1.5x

If he want equal number of mango and orange, that mean y=x. The calculation will be:

y= 30 - 1.5x

x= 30 - 1.5x

x+ 1.5x = 30

2.5x= 30

x= $\frac{30}{2.5}$ = 12

8 0

4 years ago