What is the sum of (-2.1x + 3.7) and (5 + 4.9x)?

A. -7.0x + 8.7

B. -2.8x + 8.7

C. 2.8x + 8.7

D. 7.0x + 8.7

Km = miles x 1.609

240 x 1.609 = 386.24 km

The answer is D. 386 kilometers

Answer:

D. 386

Step-by-step explanation:

If we know that we have 240 miles then we need to find the Km/m which is 1.60934 Km to 1 M, and we have the equation y= 1.60934(x), y bing the total amount of Km, or in other words, your answers, and x is the miles. Now change that x into 240 so now you have y= 1.60934(240) which comes out to 386.2416 Km or 386Km as seeing you have to round tho the nearest whole number.

Answer:

p> 4/3

Step-by-step explanation:

Answer:

y = 1/2 + 11

Also:

Plz mark brainliest if this helped :)

Answer: y=−x+3

Step-by-step explanation: the line starts from top left between - 8 and -6 and goes through  right under 4 / half a square intercepts on the x axis right onto the 4 and to the part stopping between - 8 and -6 once again, so it basically goes diagonal just be sure to make those marks

Answer:

Its b

Step-by-step explanation:

if -2x-1=2 then 2+3 = 5

which is (-1,5)

Answer:

B

Step-by-step explanation:

that man's seems to be good at math as well

Answer: P(t) = 600*(1.041)^t.

Step-by-step explanation:

An exponential growth can be written as:

P(t) = A*(1 + r)^t

Where:

A =  initial population = 600

r = rate of growth in decimals = 4.1%/100% = 0.041.

t = number of units of time.

Now we have a problem, we know that the growth rate is 4.1 %, but we do not know in which time units are we working.

Because is not the same if the bacteria grows a 4.1% in one day, than if the bacteria grows a 4.1% in a hour.

But that does not matter for the actual equation, because we can just define "t" as the time (like the question asks) and the equation will be:

P(t) = 600*(1 + 0.041)^t

P(t) = 600*(1.041)^t.

Answer:

z = 3[tex]\sqrt{13}[/tex]

Step-by-step explanation:

Using the altitude- on- hypotenuse theorem

( leg of large Δ )² = ( part of hypotenuse below it ) × ( whole hypotenuse )

z² = 9 × (9 + 4) = 9 × 13 = 117 ( take square root of both sides )

z = [tex]\sqrt{117}[/tex]

  = [tex]\sqrt{9(13)}[/tex]

  = [tex]\sqrt{9}[/tex] × [tex]\sqrt{13}[/tex]

  = 3[tex]\sqrt{13}[/tex]

Hopeful this is helpful!

Step-by-step explanation:

      a. p is 20% of 190. How many pennies do you have?

p=.20 x 190=p p= 38 pennies

      b. 190 is 200% of r. How many rare coins do you have?

190/2=r   r(rare coins) = 95 rare coins

     c. n is 60% of r. How many nickels do you have?

n=.60 x 95=n n= 57 nickels

:)

Answer/Step-by-step explanation:

2. Using two pairs of values, (0, 59) and (2,000, 51),

[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{51 - 59}{2,000 - 0} = \frac{-8}{2,000} = -\frac{1}{250} [/tex]

3. The y-intercept is the value of y when x = 0. Thus, x = 0, when y = 59. Therefore,

y-intercept (b) = 59

4. To write an equation in slope-intercept form, simply substitute m = -¹/250, and b = 59, in [tex] y = mx + b [/tex]

✅[tex] y = -\frac{1}{250}x + 59 [/tex]

5. Substitute x = 5,000 in [tex] y = -\frac{1}{250}x + 59 [/tex].

[tex] y = -\frac{1}{250}(5,000) + 59 [/tex]

[tex] y = -20 + 59 [/tex]

[tex] y = 39 [/tex]

At an altitude of 5,000 ft, temperature would be 39°F

Answer:

3.

..2330

Step-by-step explanation:

Answer:

x is 50

y is 55

Step-by-step explanation:

Let us start working with the second patio

At any point in time, the total measure of the angles of a triangle is 180

Thus in the second patio;

x + 20 + 50 + 60 = 180

x + 130 = 180

x = 180-130

x = 50

In the first patio;

x + 10 + y + 15 + 70 = 180

substitute 50 for x

50 + 10 + y + 65 = 180

60 + 65 + y = 180

y = 180-60-65

y = 55

Answer:

the other answer above is wrong,

x=50

y=35

Answer:

HI = GJ ( GIVEN) s

GH = IJ ( given) s

Gi = Gi ( common side) s

And boom

GHI = Gji ( mention above eq, being SSS)

S mean side

Answer:

9

Step-by-step explanation:

The first step is the stuff in the parenthesis which equals to 1/2(18). The next step is to multiply 18 by 1/2. That is super simple because it is just taking one half of 18 which is 9. Plz vote brainliest

Answer:

Step-by-step explanation:

Step one:

given data

Principal= $2,200

SImple interest =$528

Time = 2years

Rate = ?

Required:

Rate R

The simple interest is expressed mathematically as

SI=PRT/100

substitute we have

528=2200*R*2/100

cross multiply

528*100=2200R

divide both sides by 2200

R=52800/2200

R=24%

Answer:

simplify = - 4 x -2  factored = 2 (-2x - 1)

Step-by-step explanation:

Answer:

all you do is add

Step-by-step explanation:

Answer: x= 1 + i √ 47/6

Step-by-step explanation: solve using the quadratic formula

Solve using the quadratic formula.

Answer:

the answer would be B

Step-by-step explanation:

solve using quadriatic formula because we are doing quadriatics

Answer:

x intercept: (-1/7, 0) or (.14, 0)

y intercept: (0, 1/4) or (0, .25)

Step-by-step explanation:

Answer:

x- (−0.142857142857143,0)

y- (0, .25)

Step-by-step explanation:

The x-intercept:

Plug y=0 into the equation and solve the resulting equation 7x−5=−6 for x

(−1/7,0) = (−0.142857142857143,0)

The y-intercept:

Plug x=0 into the equation and solve the resulting equation −5=4y−6 for y

(0,1/4) = (0, .25)

Answer:

Gerry arrived at the bus station at 12:30 P.M.

Step-by-step explanation:

From noon and 5:00 P.M. there are 5 hours.

Gerry, Dale, and Pat arrived at the bus stop within that interval, which means the sum of the times elapsed between their arrival times must be 5.

4 out of the 5 hours elapsed since Gerry and Dale's arrivals. This means there is only one hour left for twice x.

If twice x is one hour, then x is half an hour. Thus, the complete sequence of arrivals is:

Gerry arrived at the bus station at 12:30 P.M.

Dale arrived at the bus station at 4:30 P.M.

Pat arrived at the bus station at 5:00 P.M.

Answer:

Sum he wasn't suupposed to be doing....... ;-;

Step-by-step explanation:

Answer:

50

Step-by-step explanation:

Answer:

Slope is 2; y-intercept is (0,-6)

Step-by-step explanation:

Slope intercept form looks like 3y = 2x - 6

In the equation y=mx+b, M is always the slope, and B is always the y-intercept. Therefore if you look back at the problem the slope number should be in front of the x which makes it 2. Since the y-intercept is always b, y = -6.

Slope or m = 2; y-intercept is (0,-6)

Answer:

y = [tex]\frac{2}{3}[/tex] x - 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

- 2x + 3y = - 6 ( add 2x to both sides )

3y = 2x - 6 ( divide all terms by 3 )

y = [tex]\frac{2}{3}[/tex] x - 2 ← in slope- intercept form

with slope m = [tex]\frac{2}{3}[/tex] and y- intercept c = - 2

Answer:

A. 3.794 x 10^6

Step-by-step explanation:

Answer:

For a line equation for the form of y=mx+b, the slope is m.

Slope of 3x+y=6: m = -3 (m equals negative 3).

Answer:

7/12

There are 7 students for every 12 alumni

Step-by-step explanation:

So, the ratio of students to alumni is 630/1080. This means there are 630 students for every 1080 alumni.

However, we can simplify this. If you treat this like a fraction and simplify, it will be much easier. Both numerator and denominator can be divided by 90, so that's what we'll do. 630/90 is 7. 1080/90 is 12.

Therefore, the correct answer is 7/12!

Hope I helped!!!!!!

Answer:

28.85

Step-by-step explanation:

30% 30% of $96.50 is $28.95

Answer:

$67.55

Step-by-step explanation:

30% off that was 28.95 so you subtract

Answer:

I will take a Google play card, or Playstation either one.

Step-by-step explanation:

Check out my Bio for my YT channel please also.

Answer:

Hey what’s up this is so kind of you! Ive been trying to get an xbox giftcard for my older brother cuz he’s having a hard time so that would mean the world to me. Thanks!! :)))

Step-by-step explanation:

Answer:

6/25

Step-by-step explanation:

Answer:

The answer is B 6/25

Step-by-step explanation:

ITs B because you would first get 12/50 and then just simplify it by even numbers.

hope I helped. :)