Mathematics College

What is the first step in evaluating the expression shown below?
(12.9 – 3.1) × 6.2 – 2 + 43
A. Multiply 3.1 and 6.2
B.Add 2 and 43.
C.Subtract 3.1 from 12.9
D.Subtract 2 from 6.2.
HELPPPP

Answers

Answer 1

Answer:

C.Subtract 3.1 from 12.9

Step-by-step explanation:

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Related Questions

5. Ellen wants to rent a bike. They charge a $12 service
fee plus $16 per hour and she can spend at most $140,
how many hours can she rent the bike?

Answers

Answer:

5

Step-by-step explanation:

cuz 12 +16 is 28, 140÷28 is 5

Answer:

16h + 12 = 140

Step-by-step explanation:

She can ride the bike for 8 hours.

30 POINTS PLEASE help

Answers

Answer:

m= -1/7

b=2

Step-by-step explanation:

I don’t understand please help

Answers

y= 4/1 x -9 :) djsjsjdndndndj

The price of milk increased from $2 to $2.50. What is the percent of change for the price of milk?

Answers

25.00%

Or

25c

Have a Merry Christmas!

NEED HELP ASAP WILL GIVE BRAINLIEST
Review the diagram.

On a coordinate plane, a ramp is 25 degrees from the x-axis in quadrant 1. An object has a vector labeled 300 pounds.

An object is pulled up a ramp with a 25° incline. The force required to move the object is 300 pounds. What is the component form of the force vector?

(78, 290)
(290, 78)
(127, 272)
(272, 127)

Answers

Answer:

D. (272, 127)

Step-by-step explanation:

It's actually not A, I just took the test. The right answer is D.

Answer: D) (272, 127)

Step-by-step explanation: :D

How do I find slope and y-intercept??? Please help me!!

Answers

The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.

Help me plz. I’ll give good points.

Answers

Answer:

A is the answer because the -T is right at 0

What is the least common denominator of 7/12, 7/15, and 7/24?

Answers

Answer:

120

Step-by-step explanation:

Help meeeeeeeee


Pleaseeee

Answers

Answer:

give them all a common denominator

1/3= 2/6

5/6= 5/6

1/2= 3/6

1/6= 1/6

and then use the "new" fraction to order the other ones. but be sure to use the original values, not the ones you made using the GCF. so the answer would be:

1/6, 1/3, 1/2, 5/6

3 (x – 4) = 2x + 6
solve for x

Answers

Answer:

Step-by-step explanation:

3 (x – 4) = 2x + 6                  Remove the brackets

3x - 12 = 2x + 6                    Add 12 to both sides.

3x - 12 + 12 = 2x + 6 + 12     Combine

3x = 2x + 18                         Subtract 2x from both sides

3x-2x = 2x-2x + 18              Combine

x = 18

What is the point slope form for (2,0)(4,6)

Answers

Answer:

0-y=3/4(x-2)

Step-by-step explanation:

An adult ticket for hypnotist's show cost $15. A children's ticket for the hypnotist's show cost $9. The number of adult tickets sold 5 more times the number of children's ticket sold. A total of $1512 is taken in for ticket sales. How many of each type of ticket is sold.
1. 21 adult tickets and 110 children's tickets
2. 110 adult tickets and 22 children's tickets
3. 10 adult tickets and 90 children's tickets
4. 10 adult tickets and 18 children's tickets

Answers

Answer= 1
because number 2 and 4 are under $1512 and 3 is over

Answer:

The answer is B, or the second one.

90 Adult tickets and 18 Children's tickets

Step-by-step explanation:

(90 x 15) + (18 x 9)

use f(x)=5x+2 and g(x)=3-x. what is the value of f(g(-1)) and g(f(-1))?

Answers

Answer:

f(g(-1)) = 22

g(f(-1))=6

Step-by-step explanation:

We are given

[tex]f(x)=5x+2 \\g(x)=3-x[/tex]

We need to find f(g(-1)) and g(f(-1))

Finding f(g(-1))

First we will find f(g(x)) i.e

[tex]f(g(x))=5(3-x)+2\\f(g(x))=15-5x+2\\f(g(x))=-5x+17[/tex]

Now finding f(g(-1)) by putting x=-1

[tex]f(g(x))=-5x+17\\Put \ x=-1\\f(g(-1))=-5(-1)+17\\f(g(-1))=5+17\\f(g(-1))=22[/tex]

So, f(g(-1)) = 22

Finding g(f(-1))

First we will find g(f(x)) i.e

[tex]g(f(x))=3-(5x+2)\\g(f(x))=3-5x-2\\g(f(x))=-5x+1[/tex]

Now finding g(f(-1)) by putting x=-1

[tex]g(f(x))=-5x+1\\Put \ x = -1\\g(f(-1))=-5(-1)+1\\g(f(-1))=5+1\\g(f(-1))=6[/tex]

So, g(f(-1))=6

Simplify 24x^6/12x^-8?

Answers

Answer:

2x^14

Step-by-step explanation:

$899 computer; 20% discount

Answers

Answer:

it knocks off $179.80 or the final cost which is $719.20.

Step-by-step explanation:

Answer:

$719.20

Step-by-step explanation:

899*0.2=179.8

899-179.8=719.2

Solve for x. Round to the nearest tenth.

Answers

Answer:

x = 9.6

Step-by-step explanation:

Find the density ( use the triangle formula) Write the formula & show all three steps. Volume is 23 ml Mass is 18g

Answers

Answer:

d=0.78g/ml

Step-by-step explanation:

d=m/v

d=18/23

d=0.78 g/ml

Find the slope and y-intercept (solve for y) -4y+2x= -20

Answers

Y=5+1/2x that the answer

Solve the following equation with rational coefficients

0.8x = 6

y’all really should help me .

Answers

Answer:

I think its x=48

Step-by-step explanation:

Answer:

X = 7.5

Step-by-step explanation:

0.8x = 6

x = 6/0.8

x = 7.5

it took jake 28 minutes to run 5km last months. this month he ran 5km in 21 minutes. by what percentage had jake improve his running time?

Answers

Answer:

25%

Step-by-step explanation:

28-21=7

7/28=×/100

7×100=700

700÷28=25

Answer:

7

Step-by-step explanation:

Okay so, 28-21 =07 right

7 as a percent is 700% and the limit is 100%

so 700%/100%= 7

find the slope intercept form of the equation of the line that passes through (-1,5) and is parallel to the line y=2x+4

Answers

Answer:

y = 2x + 7

Step-by-step explanation:

PLS HELP. It’s question 18

Answers

Answer:

no

Step-by-step explanation:

No because figure b is much bigger and has a steeper angle at the top

Carlos paid an electrician x dollars per hour for a 6-hour job, plus an additional $75 for parts. The total charge was $500.00. Which equation can be used to determine how much the electrician charged per hour?

Answers

Answer:5x + 70 = 320

Step-by-step explanation:

this can be the only answer.

please make me brainliest.

Find the arc length of AB to the nearest tenth.
90°
B
A
70 m
The arc length is
meters.

Answers

90 is a fourth of 360, so the a fourth of the total circumference is between those two radii. This means that, if you find the circumference and divide it by 4, the resulting number is that length.

a bag contains 3 red balls and 1 blue ball. what is the expected number of red balls in the first bag

Answers

Answer:

[tex]Expected\ Value = 3[/tex]

Step-by-step explanation:

Given

[tex]Red\ Balls = 3[/tex]

[tex]Blue\ Balls = 1[/tex]

Required

Determine the expected number of red balls

First, we calculate the probability of a red ball

[tex]P(Red\ Ball) = \frac{Red\ Ball}{Total}[/tex]

[tex]P(Red\ Ball) = \frac{3}{3 + 1}[/tex]

[tex]P(Red\ Ball) = \frac{3}{4}[/tex]

[tex]P(Red\ Ball) = 0.75[/tex]

The expected value is then calculated as:

[tex]Expected\ Value = P(Red\ Ball) * Total[/tex]

[tex]Expected\ Value = 0.75 * 4[/tex]

[tex]Expected\ Value = 3[/tex]

Mrs. Dimitri purchased a case of yogurt cups. Out of every 10 yogurt cups, 6 are strawberry. There are 30 yogurt cups in the case. How many yogurt cups are strawberry?

Answers

Answer:

18

Step-by-step explanation:

The ratio of strawberry yogurt cups to all of the yogurt is 6:10.  We know that there are 30 total yogurt cups, which is the same as 3 times 10.  to find the number of strawberry cups, 6 should be multiplied by 3 as well to equal 18.  18:30 is still the same ratio as 6:10

help please it’s important!!

Answers

2

Here is the explanation: 2 (17x+2)

A pecan ple recipe calls for 3 1/2 cups of sugar for 16 servings. How many cups of sugar are needed for 32 servings of pecan ple?
A. 6.24 cups
B. 7 cups
C. about 146 cups
D. about 164 cups

Answers

Answer:

B. 7 cups

Step-by-step explanation:

16+16=32

3 1/2+3 1/2=

3+3=6 1/2+1/2=1

6+1=7

Answer:

B. 7 cups

Step-by-step explanation:

31/2 cups for 16 servings.

32 servings are two 16 servings

Convert 3 1/2 to fraction 7/2 then multiply by 2

7 cups

Identify the rate of change

Answers

Answer:

The rate of change is -2

Step-by-step explanation:

I know because I used a calculator and it is decreasing by 2 in the x column. Plzz can I have brainiest

What is the zero of the function below?

A. x = -3

B. x = 1

C. x = -1

D. x = 9

Answers

The answer to your question is d
The answer is D hope that helps
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