y
is inversely proportional to
x
.
When
y
=
25
,
x
=
4

Work out
x
when
y
=
20

Answer:

80 seconds

Step-by-step explanation:

Did the math in my head

Step-by-step explanation:

Answer:

x = [tex]\frac{2}{5}[/tex], x = 4

Step-by-step explanation:

Given

5x² - 22x + 8 = 0

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 5 × 8 = + 40 and sum = - 22

The factors are - 20 and - 2

Use these factors to split the x- term

5x² - 20x - 2x + 8 = 0 ( factor the first/second and third/fourth terms )

5x(x - 4) - 2(x - 4) = 0 ← factor out (x - 4) from each term

(x - 4)(5x - 2) = 0

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

5x - 2 = 0 ⇒ 5x = 2 ⇒ x = [tex]\frac{2}{5}[/tex]

Answer:

the answer is D.

Step-by-step explanation:

this is because if you distribute 0.4 times 0.3 you get 0.12.

then you are left with 0.12+1 which means both shops charge the same price.

Answer:

-5/1

Step-by-step explanation:

The y-intercept is 56, and since it will keep on dropping, it will be -5

Answer:

5/1

Step-by-step explanation:

The car salesman total earnings if he sold 5 cars for a total of $138,000 is $15480.

An equation is an expression that shows the relationship between two or more numbers and variables.

A variable can either be dependent or independent. A dependent variable depend on other variable while an independent variable does not depend on other variables.

Let y represent the total money the salesman earns for selling a total of $x sales. Hence:

y = 0.085x + 3750

If the salesman makes a total of $138000, hence:

y = 0.085(138000) + 3750

y = 15480

The car salesman total earnings if he sold 5 cars for a total of $138,000 is $15480.

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Answer:

Step-by-step explanation:

he is poooooooooooooorrrrrrrrrrrrrrrrrr

Answer:

3 cm : 1 cm

Step-by-step explanation:

1. 60 : 20

2. divide 10 on both sides = 6 : 2

3. divide by 2 on both sides = 3 : 1

4. 3 cm : 1 cm

I'm so sorry, I just read the ratio is 60 cm to 20 M

So edit:

convert both into a unit, we'll take m.

1 cm = 100 m

so 60 x 100 = 60000 m

= 60000 m : 20 m

= divide by 20 in both sides...

= 3000 m : 1 m

Answer: 3 x 13 is 39

Step-by-step explanation:

you can use the distributive property by breaking it up into smaller parts and adding for example (6+7) + (13+6) +7

Answer: 3 x 13 is 39

Step-by-step explanation:

you can use the distributive property by breaking it up into smaller parts and adding for example (6+7) + (13+6) +7

Answer:

yes

Step-by-step explanation:

from (0,5) to (1,0), it is decreasing

Step-by-step explanation:

y-b=m(x-a)

y--8=1/4(x-6)

y+8=1/4(x-6)

4y+32=1(x-6)

4y+32=x-6

4y=x-38

y=1/4x-38/4

or -x+4y+38=0

or -×+4y= -38

Answer:

You would make your number into a fraction to make your exponent positive which would be 1/5^3, then you simplify your exponent to get 1/125.

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

which one

Step-by-step explanation:

Answer:

so the answer is 30

now to find the answer we just need to do this...

step 1: we need to simplify the equations from both sides.

[tex]\frac{-2}{5} x = -12[/tex]

then we multiply on both sides by [tex]\frac{5}{-2}[/tex]

[tex](\frac{5}{-2}) *(\frac{-2}{5}x )= (\frac{5}{-2} )*(-12)[/tex]

which equals x= 30

Step-by-step explanation:

hope this helps!!

Answer:

f = 0,that symbol on bottom 5/5  g= 0, 9/25 i think

Step-by-step explanation:

Answer:

34.25 seconds

Step-by-step explanation:

Given that :

Summation of the complete lap time of each of the four swimmers = 137.009 seconds

The average lap time for each of the four swimmers will be :

The average of the total lap time ;

Total lap time / number of swimmers

= 137.009 / 4

= 34.25225 seconds

Hence, each swimmer has an average lap time of 34.25 seconds

Answer: B. Outdoor temperature as a function of time

Step-by-step explanation:

just answered edge2020

The equivalent expression is: -2x + 10. therefore the correct option is C.

Those expressions who might look different but their simplified forms are same expressions are called equivalent expressions.

To derive equivalent expressions of some expression, we can either make it look more complex or simple. Usually, we simplify it.

From the distributive property;

-2(x - 5)

Then, multiply -2 and -5

-2 * x = -2x

-2 * -5 = 10

because two negatives make a positive

Therefore the answer would be -2x+10.

Hence,The equivalent expression is: -2x + 10. therefore the correct option is C.

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Answer:

Terell gained 5 and 1/6 pounds between March and June

Step-by-step explanation:

1. 109 - 104 = 5

2. Convert 1/3

1/3 = 2/6

3. Convert 1/2

1/2 = 3/6

4. Subtract them

3/6 - 2/6 = 1/6

(Full equation: 109 and 1/2 - 104 and 1/3 = 5 and 1/6 pounds)

Answer:

B!!!!

Step-by-step explanation:

It is B because

X is the students.

Y for teachers.

the total of tickets sold are 530.

it can't be C because they switch the 3 and 4, so sorry.

Answer:

6.25

Step-by-step explanation:

Divide 150 $ to 24 caps on your calculator

If the cost of 24 caps is $150, then the cost of each cap is $6.25.

We know that a single unit's value can be determined from the values of multiple units, and multiple units' values can be determined from the values of single units using the unitary method. We typically use this technique for math calculations. We are able to locate the missing value using the unitary method.

Given that the cost of 24 caps is $150.

Then the cost of 1 cap is 150/24 = $6.25

Therefore we can conclude that If the cost of 24 caps is $150, then the cost of each cap is $6.25.

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Answer:

D

Step-by-step explanation:

If it is over 500 you round up. If its lower than 500 you round down.

Answer:

Hi Leah that answer is 6,000 + 2,000=

Step-by-step explanation:

Hope this helps :)

Answer:

18=2m-4

Step-by-step explanation:

18 is the age of John. M represents the age of Michael. John is older than Michael so instead of 18=4-2m it is 18=2m-4. If you do 8=4-2m it will be inccorect because it will give you a negative. Michael is 11 years old.

Answer:

Step-by-step explanation:

Slope intercept form

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

m=slope

c= intercept

1)  y= -x + 6      

2) y=7x + 6

3) y= -3/4x + + 3

4) y= -2/5x - 1/5

5) y= -x + 20

6) y= -7x + 8

7) y= -3x + 3

8) y= -2/5x -2    

Line 1 and 5 are parallel because both have the same slope of -1

line 4 and 8 are also parallel as the their slopes are -2/5

Answer:

uygtycyniuhuy

Step-by-step explanation:

the ratio of the p is  31.5  and the area is 80 correct me if im wrong but if u need any help im always here :)

Answer:

64 miles per hour

Step-by-step explanation:

448/7=64 miles

Constant rate you can just divide the number by the time in this particular situation.