What is the solution to the equation?
5 = 2/5a

A. 2
B. 4 3/5
C. 12 1/2
D. 25

What Is The Solution To The Equation?5 = 2/5a A. 2B. 4 3/5C. 12 1/2D. 25

Answers

Answer 1

Answer:

3 rd Option

Step-by-step explanation:

[tex]5 = \frac{2}{5} a[/tex]

=> 5 × 5 = 2a

=> 25 = 2a

[tex] = > \frac{25}{2} = a[/tex]

[tex] = > a = 12 \frac{1}{2} (ans)[/tex]


Related Questions

(4) (8) translate to words

Answers

Answer:

(4) (8)

four times 8

Please can you mark me as brainliest if you think my answer is helpful.

497,140.4 divided by 10

Answers

Answer: 49714.04

Step-by-step explanation:

Answer:

49,714.04

Step-by-step explanation:

Move the decimal dot to 1 digit before it

497,140.4 => 49,714.04

The distance between two points on a map is 6.5 cm. The scale of the map is 1:1000. Find the actual distance between the two points in km.
I need the answer asap

Answers

Answer:

0.065km

Step-by-step explanation:

1:1000 in cm

so in km its

cm:km

1:0.01

6.5:X

so its 0.065 km

hope it helps and correct

keep loving maths

Can someone please help me with this? Can someone please explain too?

It's a little bit urgent, please help. Thank you.

Answers

Answer:

1. A

2. D

3. D

Step-by-step explanation:

For one & two: Basically, what you do is you replace the Xs from the answers with all the set of numbers given from the question. You then see after you  test the numbers  w/ the answers it'll help you find the correct answer.

For three: Using all the numbers starting from zero to the left you use it to solve the problem by utilizing those numbers and replacing it w/ the Xs as explained above to find your answer.

What is 5 x 0.1 + 4 x 0.01 + 8 x 0.001 written in standard form?

Answers

Answer:

0.548

Step-by-step explanation:

5 x 0.1 = 0.5

4 x 0.01 = 0.04

8 x0.0001 = 0.008

Now add them all together to get 0.548 in standard form.

I hope this helps! :)

Answer:

5 × 0.1 is 0.5

4 × 0.001 is 0.04

8 × 0.0001 is 0.008

so add all number is

0.548

a die is rolled 600 times and 3 came up 250 times what is the experimental probability of rolling a 3

Answers

Answer:

5/12

Step-by-step explanation:

Which is the equation of the line that passes through (6, 2) and is perpendicular to a line with slope -1/3? ​

Answers

Answer:

(c) y = 3x - 16 or y - 2 = 3(x - 6)

Step-by-step explanation:

To be perpendicular, the slope must be the negative inverse of the other line,

so we know the slope must be -(-3/1) = 3

then the general point-slope form is

y = mx + b (m = slope and b = y-intercept) so

y = 3x + b (then use the point given (6,2) to find m)

2 = 3(6) + b

2 = 18 + b

2 - 18 = b

-16 = b

then

y = mx + b

y = 3x - 16

What 2 divided by 188

Answers

Answer:

1/94

Step-by-step explanation:

2/188 = 1/94

Answer:

0.01063829787.

Step-by-step explanation:

Caculator.

You bought a gallon of milk for $5 and four boxes of cereal. You spent a total of $25.
How much did each box of cereal cost. *

Answers

Answer:

$5 is the answer.......

Answer:

one box cost is $5

Step-by-step explanation:

$25 - $5 = $20 - this is the cos of four cereal boxes

$20 / 4 = $5 each box cost

What is the distance
what
between the points
(28,-12) and (28, 6)?

Answers

Answer:

[tex]distance = \sqrt{ {(x2 - x1)}^{2} + {(y2 - y1)}^{2} } \\ \sqrt{ {28 - 28)}^{2} + {(6 - - 12)}^{2} } \\ \sqrt{ {0}^{2} + {18}^{2} } \\ = \sqrt{ {18}^{2} } = 18unit \\ thank \: you[/tex]

what are the next two numbers in the sequence? 1,3,8,16,
and the sequence 1,26,24,120

Answers

Answer:

256, 254

Step-by-step explanation:

Express the angle in radian measure. -135°
-π/4
-3π/4
-π/6

Answers

Answer:

-3π/4

Step-by-step explanation:

-135° = (-135) × π/180= -3π/4

Jim found four pieces of wire in his tool drawer. Here are their lengths 5, 9.71, 14.1, 15.68 what is the total lenghts?

Answers

Answer:

44.49

Step-by-step explanation:

just add all the values

5+9.71+14.1+15.68=44.49

The sum of the 4 lengths is 44.49

− 5/2​ ÷5/7

please help again....please

Answers

Step-by-step explanation:

hope you get it.

if you need answers in decimal it is -3.5

Answer: - 7/2

Alternative Answers: - 3 1/2, - 3.5

Step-by-step explanation:

- 5/2 / 5/7

To divide by a fraction, multiply by the reciprocal of that fraction.

- 5/2 x 7/5

Reduce the numbers with the greatest common factor 5

- 1/2 x 7

Simplify and calculate the product

- 7/2 or - 3 1/2 or - 3.5

Learn more: https://brainly.com/question/14758494

I NEED HELP WITH NUMBER 4 and I need to show work :((

Answers

Answer:

x = 1, y = 9

Step-by-step explanation:

y = 7 + 2x

4x + 3(7 + 2x) = 31

4x + 21 + 6x = 31

10x = 10

x = 1

y = 7 + 2(1)

y = 9

A mobile device that normally sells for $99.90 is
marked down 10%. What's the discount price?
$99.00
$89.99
$89.91
$89.90

Answers

Answer:

89.90 is the answerrrrrrrrrrr

Answer:

89.91

Step-by-step explanation:

You can do this with a calculator 99.90-10%

How many solutions does the following equation have? 7 x - 5(2x - 4) - 8 = 15 - (3 - x) - 4x

a. no solution
b. exactly one solution
c. at least two solutions
d. infinitely many solutions

Answers

Answer:

no soultion

Step-by-step explanation:

did on paper

Answer:

exactly one solution

Step-by-step explanation:

got it right on khan lol

Find five numbers that have a mean of 10 and a median of 12.

Answers

Answer:

There are infinitely many solutions. Start with five data, in size order: a < b < c < d < e. Then c=11, the median. To get the mode of 12, we must have d=e=12. Thus far, we have (a+b+11+24)/5 = 10 the mean. But now we have run out of requirements, and we still have two unknowns. They satisfy a+b+35 = 50. Thus, pick any two values a not equal to b that add to 15 and are both less than 11.

The full set of solutions are points (a,b) run along a line joining the points (4,11) and (11,4) on graph paper, except (7.5, 7.5) and the endpoints. That would make competing modes. Try a=5.6 and b = 9.4 for instance!

the answer may be 5,6,12,13,14

its have many answer n this is one of it

i hope it can help u

Evaluate 5 - (4 + 2)2
O A. 9
O B. -15
O C. 5
O D.-31

Answers

5 - (4 + 2)² = 5 - 6² =

= 5 - 6 · 6 = 5 - 36 = -(36 - 5) = -31

Answer: D)

Which expression is equivalent to –9+(-9)
O 9+ (-9)
-9 - 9
Submit Answer
O-9- (-9)
O9- (-9)

Answers

-9-9 is the answer……

Tavon has a gift card for $110 that loses $2.50 for each​ 30-day period it is not used. He has another gift card for $90 that loses $2 for each​ 30-day period it is not used.
a. Write and solve an equation for the number of​ 30-day periods until the value of the gift cards will be equal.
b. What will the value of each card be when they have equal​ value?

Answers

30 day period

The first equation is 50 - 2x (because you start with $50 and subtract 2 for each 30 day period)

The second equation is 40-1.5x

Set them equal to each other:  50 - 2x = 40 - 1.5x

Solve for x:

50 - 2x = 40 - 1.5

  +2x   +2x

50 = 40 + 0.5 x

-40   -40

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

10 = 0.5 x

20 = x

So there will be 20 30-day periods until the cards will be equal in value.

Check:  After 20 periods, 50 - 2(20) = $10 left

40 - 1.5(20) = also $10 left

The equations are y = 110 - 2.5x and y = 90 - 2x. Then the value of each card, when they have equal​ value, will be $10.

What is a linear equation?

A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

Let x be the number of days and y be the value of the card.

Tavon has a gift card for $110 that loses $2.50 for each​ 30-day period it is not used. He has another gift card for $90 that loses $2 for each​ 30-day period it is not used. Then the equations will be

y = 110 - 2.5x    ...1

y = 90 - 2x       ...2

From equations 1 and 2, we have

110 - 2.5x = 90 - 2x

20 = 0.5x

x = 40

And the value of y will be

y = 110 - 2.5(40)

y = 110 - 100

y = $10

The equations are y = 110 - 2.5x and y = 90 - 2x. Then the value of each card, when they have equal​ value, will be $10.

More about the linear equation link is given below.

https://brainly.com/question/11897796

#SPJ2

NEED HELP ILL MARK BRAINLIEST

Answers

I’ve attached my work
b is your answer
I just drew a sketch of a graph and saw if it would be a line

Need help fast, with steps

Answers

Answer:

D

Step-by-step explanation:

Given the input - 1 [tex]\frac{1}{2}[/tex] = - [tex]\frac{3}{2}[/tex] , then

(- [tex]\frac{3}{2}[/tex] )² = [tex]\frac{9}{4}[/tex] , then subtract 2

[tex]\frac{9}{4}[/tex] - 2 = [tex]\frac{9}{4}[/tex] - [tex]\frac{8}{4}[/tex] = [tex]\frac{1}{4}[/tex]

Then reciprocal which is 1 over the previous value

reciprocal = [tex]\frac{1}{\frac{1}{4} }[/tex] = 4 ← output → D

Jessica is selling books during the summer to earn money for college. She
earns a commission on each sale but has to pay for her own expenses.
After a month of driving from neighborhood to neighborhood and walking
door-to-door, she figures out that her weekly earnings are approximately a
linear function of the number of doors she knocks on.
She writes the equation of the function like this: E(x) = 10x - 30, where x is the
number of doors she knocks on during the week and E(x) is her earnings for
the week in dollars.
Which of the following are reasonable interpretations of the y-intercept of
Jessica's function?

Check all that apply:
A.) If she does not knock on any doors at all during the week, she will lose $30
B.) She can earn $10 per week even if she does not knock on any doors
C.) She will lose $10 per week if she does not knock on any doors
D.) Her expenses are $30 per week

Answers

Answer:

She can earn $10 per week even if she does not knock on any doors

The expression 36 divided 6 • 2+1 is equal to
A.13
B.4
C.2
D.18


15 points for the question

Answers

I think the answer is A, 13

Which is the better investment over ten years:
$20 000 at 12% compound interest or $30 000 at 8% compound interest?

Answers

Answer:

$30000at 8%compound interest

on Monday Melody checks her bank balance and has $437.23 she knows that she will get paid on Friday and earn $236.12 she pays her bills which amount to $582.96. what will melodys bank balance be after she pays her bills and gets her paycheck​

Answers

Answer:

$437.23 + $236.12 = $673.35 then, take out her bills of $582.96 which leaves her with $90.39

Step-by-step explanation:

Hope this helps :)

which expression is equivalent to (3x^2)^6

Answers

Answer:

x4

Step-by-step explanation:

simplify the equation so that you are only left with the variable and a number(or a less longer equation)

Answer:

x^4

Step-by-step explanation:

(3*√x^2)^6

((3*√x^2)^3)^2

(x^2)^2

x^4

i hope it is helpful

HELP PLEASE I NEED THIS ONE!!!

If n/30 lies between 1/5 and 1/3, what are all the possible values of n if n is a whole number?

I’ll give brainliest

Answers

Answer:

7, 8, 9

Step-by-step explanation:

1/5 = 6/30

1/3 = 10/30


Find the distance between the two numbers on a number line. Write your answer as a mixed number.
-7, -3 2/3

Answers

Answer:

3 1/3

Step-by-step explanation:

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