Mathematics College

plz help me i really beg of you!

Answers

Answer 1

Answer:

v = -122.5

Step-by-step explanation:

1: 2.3 + v/7 = -15.2

2: v/7 = -17.5

3: v = -122.5

Step 1: This is the given equation

Step 2: Here, 2.3 was subtracted from both sides of the equation to isolate v

Step 3: both sides of the equation were multiplied by 7 to get v = -122.5

Answer 2

Answer:

245 over 2

Step-by-step explanation:

just use a calculator and you should be able to get the question right

Related Questions

An item on sale costs 85% of the original price. The original price was $75.

Answers

Answer:

$63.75

Step-by-step explanation: I think

75 multiplied by 0.85 the answer is 63.75

An individual rides a bike at a rate of 15 miles per hour for h hours. Write an equation that expresses the situation, let x be the independent variable and y be the dependent variable.

Answers

Answer:

15y+x

Step-by-step explanation:

A Porsche uses 2.5 litres of fuel every 2 kilometres it travels. How much fuel does it use if it travels 50 kilometres

Answers

2.5/2 = 1.25 litres per kilo
1.25 * 50 = 62.5 litres

Solution: 62.5 litres of fuel

Answer:

The Porsche uses 62.5 liters in 50 kilometers

Step-by-step explanation:

Amount of fuel Porsche uses = 2.5/2 liters/kilometer

= 1.25 L/Km

Distance to be travelled = 50 kilometer

Amount of fuel used in 50 km = 1.25 * 50

= 62.5 Liters

Therefore the Porsche uses 62.5 liters in 50 kilometers

Happy to help :)

Find the product of each pair of complex conjugates.

(3 + 8i)(3 – 8i) =

Answers

Step-by-step explanation:

By Difference of Squares,

a² - b² = (a + b)(a - b).

=> (3 + 8i)(3 - 8i) = 3² - (8i)²

= 9 - 64i² = 9 - 64(-1) = 73.

Whiteboard markers cost $4.75 per set at an office supply store. Which equation can be used to determine the price, P, of n sets of these markers? (10 points)

a
P = 4.75n

b
n = 4.75P

c
P equals 4.75 over n

d
n equals 4.75 over P

Answers

Answer: P=4.75n

Step-by-step explanation:

Answer:

P=4.75n

Step-by-step explanation:

Find the slope intercept equation of the line.

Answers

The equation for the slope interception is 1/5

Katie's baby took 3 naps. Each nap was of an hour long.
6
How long did the baby nap in all? Move numbers to the blanks to answer the question.

Answers

Answer:

18 naps

Step-by-step explanation:

We have the keyword each, so we are multiplying, so our equation is:

3 x 6 = 18

So, Katie's baby napped for 18 hours in all

Answer:

18 is the answer

LCM of 189024
please give me answer my question

Answers

Answer:

360

Step-by-step explanation:

We need to find the LCM of 18,90 and 24.

The prime factorization of 18 = 2 × 3 × 3

The prime factorization of 90 = 2 × 5×3×3

The prime factorization of 24 = 2 × 3×2×2

LCM is least common multiple.

LCM = 2 x 2 x 2 x 3 x 3 x 5

= 360

Hence, the LCM of 18,90 and 24 is 360.

Which is a factor of 72

Answers

Answer:

1,2,3,4,6,8,9,12,18,24,36 and72

what is equal to 2/5

Answers

Answer:

0.4

Step-by-step explanation:

if fractions: 4/10, 6/15, 8/20, 10/25 and so on. decimal form: 0.4
percentage: 40%
hope that helps!!

Mrs. Davis and Ms. Moore bought treats for their students. Mrs. Davis bought cookies for $12.56 and Ms. Moore bought popcorn for $11.08. Another teacher, Mrs. Baynes, couldn't go to the store, but wanted to help with the cost of the treats. If the teachers split the cost evenly, how much would each teacher have to pay?

Answers

Answer:

4.546

Step-by-step explanation:

total cost=12.56+11.08

=13.64

total no of person=3

cost for each person=13.64/3

=4.5467

Peter has 36 shirts in his closet, 2/9 of the shirts are striped. If the remaining shirts
are solid, how many shirts is that? What fraction of Peters shirts are solid?

Answers

Answer:

28 shirts are sold

7/9 of the shirts are sold

Step-by-step explanation:

hope this helps <3

Which graph represents the solution to the system of inequalities?

{y<−4x+1
{y≥−14x

Answers

Answer:

1st graph on line 2

Step-by-step explanation:

The line passes through (6,3) and (-1,-8)

Answers

Answer:

OK AND CAN U TELL ME WHAT TO ANSWER SO I CAN HELP

Step-by-step explanation:

THIS IS THE LINE I DID ON A GRAPH

Answer:

=gitchie ggitchei yayadada

Please help!!!———————-

Answers

f(n) = 2000 + 500(n-1)

Step-by-step explanation:

most logical explanation considering the other options make no sense

Need help ASAP... 10 points!!

Answers

Answer:

I'm 89.73% sure that the answer is 90 degrees

Step-by-step explanation:

because you are on a right angle

Evalute the root in the question below in the screenshot
(precalc)

Answers

Answer:

Graph attached

Step-by-step explanation:

jenkins-traub method for the complicate calculation

it has 1 real root: 1.5164

2 complex roots : neglected

Is 9 correct if now what is it?

Answers

Answer:

4 + 5 = 9

girls: 4/9 (680)

boys 5/9 (850)

total 1530

there are 850 boys and 680 girls.

Help pleaseeeeeee I’m so lost

Answers

Answer:

yes no no yes

Step-by-step explanation:

Tanner's employer pays 60% of his medical insurance. If the insurance costs $40
per week. How much Tanner and his employer pay for the entire year?

Answers

Answer:

Tanner's employer pays $1251.43 a year and tanner pays $834.29

Step-by-step explanation:

Convert to centimeters: 43 meters

Answers

4300
One meter is 100 centimeters

Consider the line 2x+8y=8.

What is the slope of a line
parallel to this line?

What is the slope of a line perpendicular to this line?

Answers

Answer: parallel = - 1/4

Step-by-step explanation: perpendicular= 4

Answer:

Parallel = -1/4 ; Perpendicular = 4

Step-by-step explanation:

First, I'll put the line into slope-intercept form.

2x + 8y = 8

8y = -2x + 8

y = -1/4x + 1

Now we know that the slope is -1/4.

A parallel line would have the same slope of -1/4.

A perpendicular line would have a slope of 4.

If the Cable Company offers cable for $110 a month but gives a 10% discount for new customers. Find the cost for the new customers.
answer quickly. Thank You!!

Answers

Answer:

$99

Step-by-step explanation:

10% of 110 is 11

110 - 11

Answer:

$99

Step-by-step explanation:

First do

10% of 110

Which is 11

Then do

110-11

Which is 99

So the answer is $99

Let [tex]\sf a+b,a-b,ab,\dfrac{a}{b}[/tex] form an arithmetic sequence. What is the sixth term of this sequence?

Answers

Answer:

171/40 or 4 11/40

Step-by-step explanation:

AP givena + b, a - b, ab, a/bTo find6th termSolution

Common difference

Difference of first two

d = (a -b) - (a + b) = -2b

Difference of second two

d= ab - (a - b)

Difference of last two

d = a/b - ab

Now comparing d:

-2b = ab - (a - b)ab - a = - 3ba(1 - b) = 3ba = 3b/(1 - b)

and

a/b - ab = -2ba(1/b - b) = -2ba = 2b²/(b² - 1)

Eliminating a:

2b²/(b² - 1) = 3b/(1 - b)2b/(b+1) = -32b = -3b - 35b = - 3b = -3/5

Finding a:

a = 3b/(1 - b) = 3*(-3/5) *1/(1 - (-3/5)) = -9/5*5/8 =-9/8

So the first term is:

a + b = -3/5 - 9/8 = -24/40 - 45/40 = - 69/40

Common difference:

d = -2b = -2(-3/5) = 6/5

The 6th term:

a₆ = a₁ + 5d =-69/40 + 5*6/5 = -69/40 + 240/40 =171/40 = 4 11/40

You buy a house for $230,000. It appreciates at a rate
of 2.8% per year. Find the value after 15 years

Answers

Answer:

1,232,142

Step-by-step explanation:

bro just use a calculator

If the simple interest on $6,000 for 10 years is $5,400, then what is the interest rate?

Answers

Answer:

Step-by-step explanation:

p*r*t = Interest

$6000*x*10 years = $5400

interest ÷ time ÷ principal = rate

5400 ÷ 10 ÷ 6000 = 0.09

0.09 = 9%

Which data sets have outliers? Check all that apply
14,21,24,25,27,32,35
15,30,35,41,44,50,78
16,32,38,39,41,42,58
17,23,28,31,39,45,75
18,30,34,38,43,45,68

Answers

Answer:

C.16, 32, 38, 39, 41, 42, 58

and

E.18, 30, 34, 38, 43, 45, 68

its C. & E.

they both have outliers lol

a. The sum of a number and one is equal to one added to the number.

Answers

Equal to the number that your didviding or multiplying

Find the least common multiple (LCM) of 4 and 5.

Answers

9514 1404 393

Answer:

Step-by-step explanation:

4 and 5 have no common factors*, so their least common multiple is their product:

4 × 5 = 20

The LCM of 4 and 5 is 20.

_____

* We're concerned with integer factors greater than 1. Of course, 1 is a factor of everything, We could say this as "no common prime factors". For computing the LCM, we really want the GCF (greatest common factor) for use in the formula ...

LCM(m, n) = mn/GCF(m, n)

On a coordinate plane, point Q is 0.5 units to the left and 1.25 units up. Point R is 1.25 units to the right and 0.5 units up. Point S is 0.25 units to the right and 0.25 units up. Point U is 0.25 units to the left and 0.25 units down. Point W is 0.5 units to the left and 1.25 units down. Point V is 0.5 units to the right and 1.25 units down. Which point is located at (–0.50, –1.25)? Point

Answers

Answer:

Point W

Step-by-step explanation:

Answer:

point W

Step-by-step explanation:

i did edge

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