What does 3 + 3(a) simplify to when a = 5?

Answers

Answer 1

Answer: it’s 3+3(5). according to BOMDAS, it’s (3*5)+3 = 15+3= 18

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Maria works 24.5 hours each week at a bookstore . she earns 8.76 per hour . How much does she earn each week
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Why will the value of y for the function y = 5x + 1 always be greater than that for the function y = 4x + 2 when x>1?

Can someone please run the answer

Answers

1: =1/4; 0.3; 2/5; 0.65
2:=8 1/5; 8.44; 8.5; 8 4/5
3:=0.8888; 7/10; 3/5; 0.27
4:=8.04; 7 9/10; 7.85; 7 1/6
5:=5.8; 5 2/5; 4.33; 4 1/4
6:=1.2; 0.67; 5/8; 3/5
7:=9.3 and 9 1/4
8:= 8 1/3; 8.45; 8 9/10

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Attached are pictures of the number lines for each problem. The easiest way to find fractions on a number line is to turn them into a decimal, which is done by dividing the top number by the bottom. For example, 3/5 would be 3 divided by 5.
Below are the numbers in order, least to greatest for #2, greatest to least for #3-6.

2. 8 1/5, 8.44, 8.5, 8 4/5
3. 0.888, 7/10, 3/5, 0.27
4. 8.04, 7 9/10, 7.85, 7 1/6
5. 5.8, 5 2/5, 4.33, 4 1/4
6. 1.2, 0.67, 5/8, 3/5

Find the equation of the line perpendicular to the line y=4x+5, passing through the point (0,-3)

Answers

Answer:

y=-0.25x-3

Step-by-step explanation:

-3=-1/4*0+b

b=-3

What is the value of 9P5?A. 45
B. 126
C. 15,120
D . 59,049

A cooking club has 12 members.How many ways can they select a president and vice president from among the members?
A. 1320
B. 220
C. 132
D. 66

Answers

The correct answers are:
C) 15120
C) 132.

Explanation:
9P5 is a permutation of 9 objects taken 5 at a time; this is
9! / (9-5)! = 9!/4!
= (9*8*7*6*5*4*3*2*1)/(4*3*2*1)
= 15120.

The second question is a permutation of 12 objects taken 2 at a time; this is 12! / (12-2)! = 12!/10!
=(12*11*10*9*8*7*6*5*4*3*2*1) / (10*9*8*7*6*5*4*3*2*1)
=132

9P5 is a permutation of 9 objects taken 5 at a time; this is ⁹P₅ = 15120. So, the correct option is C.

A permutation of 12 objects taken 2 at a time; this is 132 ways can they select a president and vice president from among the members. So, the correct option is C.

Given:

9P5 is a permutation of 9 objects taken 5 at a time; this is

9! / (9-5)! = 9!/4!

= (9*8*7*6*5*4*3*2*1)/(4*3*2*1)

= 15120.

A permutation of 12 objects taken 2 at a time; this is 12! / (12-2)! = 12!/10!

=(12*11*10*9*8*7*6*5*4*3*2*1) / (10*9*8*7*6*5*4*3*2*1)

=132

Therefore, the cooking club has 12 members. there are 132 ways can they select a president and vice president from among the members

Learn more about permutation here:

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You pay $10.32 for 8 music downloads. What is the rate of cost per download?

Answers

1.29, add 1.29 couple of times..

1.A cube has side lengths of 15 inches, what is the surface area and volume of the cube? 2. A cube has side lengths of 8 inches, what is the surface area and volume of the cube?Show ur work plz.

Answers

Answer:

Cube 1: 3375 cubed inches, 1350 inches squared.

Cube 2: 512 cubed inches, 384 inches squared.

Step-by-step explanation:

Formula for Volume of a Cube: $V=s^3\n$ (s - side length)

Formula for Surface Area of a Cube: $SA=6s^2$ (s- side length)

For Cube 1:

The side length's 15 inches.

Find the volume:

$V=15^3\n\rightarrow 15*15*15=3375\n\boxed {V=3375}$

The volume of cube one is 3375in³.

Find the surface area:

$SA=6(15)^2\n\rightarrow 15^2 = 225\nSA = 6 * 225\n\boxed {SA=1350}$

The surface area of cube 1 is 1350in².

For Cube 2:

The side length's 8 inches.

Find the volume:

$V=8^3\n\rightarrow 8*8*8= 512\n\boxed {V=512}$

The volume of cube two is 512in³.

Find the surface area:

$SA=6(8)^2\n\rightarrow 8^2=64\nSA=6*64\n\boxed {SA=384}$

The surface area of cube 2 is 384in².

Brainilest Appreciated.

Final answer:

The surface area of a cube with side lengths of 15 inches is 1350 square inches and its volume is 3375 cubic inches.

Explanation:

To find the surface area of a cube, you need to find the area of each face and then add them up. In this case, since all sides of the cube have the same length, you can use the formula: surface area = 6 * $(side length)^2$ . For a cube with side lengths of 15 inches, the surface area would be 6 * $(15 inches)^2$ = 6 * 225 square inches = 1350 square inches.

To find the volume of a cube, you need to multiply the length, width, and height. In this case, since all sides of the cube have the same length, you can use the formula: volume = $(side length)^3$ . For a cube with side lengths of 15 inches, the volume would be $(15 inches)^3$ = 3375 cubic inches.

Now, for a cube of side length 8 inches: for the surface area using the first formula, we get 6*(8 inches)² = 384 square inches. Using the volume formula, we get (8 inches)³ = 512 cubic inches.

Learn more about Surface area and volume of cubes here:

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A 100 LB bag of animal feed is 40% oats. How many pounds of oats must be added to this feed to produce a mixture which is 50% oats?

Answers

10 oats must be added to make it 50% of oats in the animal feed

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