Two numbers add to 140. If you double the smaller number and halve the larger number, then the two resulting numbers are equal. Those two equal numbers add to _____.

2 1/2 miles / 3 1/3 minutes = 3/4 mile per minute

A. 3/4 mile per minute x 49 minutes = 35 3/4 miles

B 3/4 miles per minute x 60 minutes (1 hour) = 45 miles

Answer:

2 1/2 miles = 5/2 miles

3 1/3 minutes = 10/3 minutes

Here,

in 10/3 minutes travels = 5/2 miles

in 1 minutes travels = (5/2)/(10/3) miles

in 49 minutes travels = (49*(5/2))/(10/3) miles = 36.75 miles

in 60 minutes (1 hour) travels =  (60*(5/2))/(10/3) miles = 45 miles

Answer:

41/60

could i have brainliest pls

Step-by-step explanation:

Answer:

41/60

Step-by-step explanation:

7/30  +9/20 = 14/60 + 27/60

14 + 27 = 41

41/60

不完整的问题，对不起，伙计。

本题已由中国数学会官方解答（现有会员：2人）

Answer:First term of the AP is 5. Common difference is 13 - 9 = 9 - 5 = 4. ... Hence 52 the term of the AP is 209.

Step-by-step explanation:

The exponential function that can be used to determine how much of the isotope is left after x number of half-lives is given by:

[tex]A(x) = 90(0.5)^x[/tex]

A decaying exponential function is modeled by:

[tex]A(t) = A(0)(1 - r)^t[/tex]

In which:

In this problem, the initial amount is of A(0) = 90 mg, and we are working with half-lifes, hence r = 0.5, which means that the equation is:

[tex]A(x) = 90(0.5)^x[/tex]

More can be learned about exponential functions at https://brainly.com/question/25537936

Answer:

  C

Step-by-step explanation:

The red graph is shifted right by 1 from the black graph, so its function would be f(x -1) before it is reflected across the x-axis. Normally, such a reflection will be done by multiplying f(x) by a negative number. Here, that negative number is used to divide y, instead.

The transformation would normally be expected to be ...

  y = -1·f(x -1)

By dividing by -1, this becomes ...

  y/(-1) = f(x -1) . . . . . . equation of the red graph

Answer:

500 after 1 minute

250 after 2 minutes

125 after 3 minutes

62.5 after 4 minutes

31.25 after 5 minutes

Step-by-step explanation:

Not sure if this is what you needed.

Answer:

it would be A=12bh Substitute 14 for b and 10 for h in the formula and then the area of a tringle would be 70 square meters

Step-by-step explanation:

u welcome hope i help trying to a brainiest so if u mark me brainiest it will make my day

Step-by-step explanation:

= 4,830 - 3,57 × 10³

= 4,83 - 3,57 × 1.000

= 4,83 - 3.570

= -3.565,17

= -3,56517 × 10³

≈ -3,57 × 10³

Answer:

where is the question

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Because if you add it together you get certain answer.It would not be A beacuse you cannot solve it in any way so it would be B

Really hope This helped!!:)

Answer5 and 7

Step-by-step explanation:

Answer:

11. C      12. D

Step-by-step explanation:

Answer: 11 is C and 12 is D.

Step-by-step explanation: On number 11, go on the calculator or just do on paper because you could put 175 over 100 then 60 over a 100 and cross multiply then divide. Once you have the answer, you have to take out the 6%. Now on number 12, an easy way to check. Is to go on Desmos. I used Desmos in 8th grade and it helped me cheat easily. :)

Answer:

For the function f(x) = 3x - 8,

f(0) = -8

f(4) = 4

f(-4) = -20

f(1/3) = 7

Step-by-step explanation:

Given:

f(x) = 3x - 8

f(0) = 3(0) - 8

f(0) = 0 - 8

f(0) = -8

f(4) = 3(4) - 8

f(4) = 12 - 8

f(4) = 4

f(-4) = 3(-4) - 8

f(-4) =  -12 - 8

f(-4) = -20

f(1/3) = 3(1/3) - 8

f(1/3) = 1 - 8

f(1/3) = 7

Step-by-step explanation:

1 ton = 2,000 Pounds

110 x 5 = 550

You multiply by 5 because 2,000 x 5 = 10,000.

----------------------------------------------------

Hope that helped.

Answer:

[tex]y = \frac{5}{2} x + 16[/tex]

Step-by-step explanation:

Substitute  the slope and the point into y = mx + b and solve for "b"

[tex]y = mx + b[/tex]

[tex]1 = \frac{5}{2} (-6) + b[/tex]

[tex]1 = -15 + b[/tex]

[tex]16 = b[/tex]

The slope-intercept equation is [tex]y = \frac{5}{2} x+ 16[/tex]

Answer:

ok. it's fine i guess don't know what you did wrong?

Step-by-step explanation:

With the given order of integration, the interval over D is

[tex]\displaystyle \iiint_D f(x,y,z) \, dV = \int_{-3}^{3} \int_{-\sqrt{9-x^2}}^{\sqrt{9-x^2}} \int_{-\sqrt{9-x^2-z^2}}^{\sqrt{9-x^2-z^2}} f(x,y,z) \, dy \, dz \, dx[/tex]

3x-1=4x+8-x

3x -4x +x = 8+1

4x -4x = 9

0x =9

x= 9/0 which is undefined .

Answer:

0

Step-by-step explanation:

Answer:

i think its four triangles

Step-by-step explanation:

but , correct me if im wrong ok

balabalabala

Answer:

y=8x

Step-by-step explanation:

because The equation that represents a proportional relationship, or a line, is y=kx, where k is the constant of proportionality

Step-by-step explanation:

1045/1900 = .55 so 55 % of peoplr were satisfied

Answer:

3/4     18/24       27/36

Step-by-step explanation:

Answer:

Part A: h(t) = ⅔t + 64

Part B: The toddler's height increases by 0.67 cm for every increase in age of 1 month.

Step-by-step explanation:

Given the graph of a linear function that models the relationship between the height, h, and age in months, t.

In order to establish the linear function, we must first identify the slope or the rate of change to further gain an understanding how the height varies with age over time. To solve for the slope, choose two points from the graph:

Let (x₁, y₁) = (18, 76)

     (x₂, y₂) = (21, 78)

Substitute these values into the following slope formula:

[tex]\mathsf{\textbf\:m = \frac {(y_2\: -\: y_1)}{(x_2\: -\: x_1)}}[/tex]

[tex]\mathsf{\textbf\:m = \frac {78\: -\:76}{21\: -\: 18}\: =\:\textbf\:\frac{2}{3}}[/tex]

Therefore, the slope of the line is ⅔.

To find the y-intercept, or the initial value for the height, use the slope, m = ⅔, and another point from the graph, (18, 76), to solve for the y-intercept, b.

h(t) = ⅔t + b

76 = ⅔(18) + b

76 = 12 + b

Subtract 12 from both sides:

76 - 12 = 12 - 12 + b

64 = b

Hence, the linear function that expresses the height as a function of age is:

Based on the graph, the toddler's height increases by 0.67 cm for every increase in age of 1 month. Between the ages of 15 and 18 months, a toddler grows by 2 cm. Solving algebraically, we can determine how much the toddler grew by the 16th month by substituting t = 16 into the function:

h(16) = ⅔(16) + 64

h(16) = 10.67 + 64

h(16) = 74.67

It shows on the graph that the toddler's height at 15 months is 74 cm.  Our solution here in Part B shows that the toddler grew 0.67 cm by the 16th month.        

sorry if it's wrong I'm pretty sure it's 51.

Answer:

I was confused

Step-by-step explanation:

I'm sorry I'm answering this and wasting your time lol. I was just confused.

Answer:

(3x+2)(2x+1)

Step-by-step explanation:

x2y3×35 (x+y)=5A

35x3y4=5A

A=35 x^2y^3÷5

Step-by-step explanation:

x2y3×35(x+y)=5A

35×3y4=5A

A=35×^2y^3÷5