All categories

3 years ago

Make x the subject a=7x/k-r

Mathematics

1 answer:

stiks02 [169]3 years ago

3 0

Answer:

x = $\frac{a(k-r)}{7}$

Step-by-step explanation:

Given

a = $\frac{7x}{k-r}$ ( multiply both sides by (k - r) )

a(k - r) = 7x ( divide both sides by 7 )

$\frac{a(k-r)}{7}$ = x

You might be interested in

15/2...7 if the three dots is one number what are all possibel numbers?

kvv77 [185]

Add a photo. this is confusing

8 0

3 years ago

Which equation can be used to find the number of fish in the pond on June 1?

olga_2 [115]

Answer: The required equation is $f-52=63$ and the number of fishes in the pond on June 1 = 115

Step-by-step explanation:

Given: The number of fishes in pond on July 1 = 63

Also, it is said that the number of fishes in pond on July 1 is 52 fewer(lesser) than the number of fishes in pond on June 1.

Let f be the number of fishes in pounds on June 1.

then the required equation will be

$f-52=63$

Now, add 52 on both the sides of the equation, we get

$f=63+52\\\Rightarrow\ f=115$

3 0

3 years ago

A camera regularly priced at 295 was placed on sale at 236. What percent of the regular price was the sale price?

skad [1K]

Answer:

80%

Step-by-step explanation:

regular price was given as $295.

The sale of the camera was $236.

Needed Percentage of the regular price =( 236/295)

= 0.8

=(0.8 × 100%)

= 80%

6 0

3 years ago

Which expression represents the product of s and 39? A=39-s B=39÷s C=39s D=39+s

Degger [83]

The answer would be c because it means Multiply and whenever a variable is next to a number in this case 39s then that means it a multiplication
So C. 39s

4 0

2 years ago

Combine like terms to simplify 3x + 3 + 3x + 8=

Over [174]

Answer:

6x + 11

Step-by-step explanation:

3x + 3 + 3x + 8

Combine like terms (terms with the same amount of variables).

3x + 3x + 3 + 8 =

(3x + 3x) + (3 + 8) =

6x + 11

6x + 11 is your answer.

3 0

3 years ago