The price of a watch was increased by 20% to £198.
What was the price before the increase?

The value of x is 3.

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

As, we know that The median (also called a midline or midsegment) is a line segment half-way between the two bases.

median = (a+ b ) / 2

So, 12.5 = (3x+1 + 15) / 2

12.5 = 3x + 16 / 2

25 = 3x + 16

3x = 9

x= 3

Hence, the value of x is 3.

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Answer:

5 servings

Step-by-step explanation:

Given that:

For a particular first snack  to be = 270 calories;

the servings = 3

Then, for the second snack, the calories = 450.

To estimate the servings for the second snack; we need to equate the first snack with the second snack.

Let y be the value of the unknown second snack

Then:

270 calories = 3 servings

450 calories = y servings

y servings = (450 calories × 3 servings) / 270 calories

y servings = 5 servings

Thus; the second snack needs to have 5 servings in order to be equivalent to the first snack

Answer:

Would love to help, but can't see full question picture.

Answer:

V ≈ 509 m3 ← This is an approximate answer, rounded to the nearest whole. To calculate the volume of a cylinder, multiply the area of the base (Πr2) times the height (h). This gives the formula V = Πr2h.

Answer:

day 2) 100

day 3) 140

day 4) 180

day 5) 220

day 7) 300

Step-by-step explanation:

the equation would be y= 40x + 20 since 20 is the starting price and everyday you add 40 dollars. put in what day it is as X to get the answer

Answer:

i believe its $6.30

Step-by-step explanation:

You multiply 42 by .15

Answer:

35.71

Step-by-step explanation:

15% of 42

15/42*100

35.71

Answer:

m=8

hope this helps

have a good day :)

Step-by-step explanation:

2 + 6m +7=57

9+6m=57 add like terms

6m=48 subtract 9 from each side

m=8 divide by 6 on each side

Answer:

M=8

Step-by-step explanation:

First your going to subtract 2 from 7 and thats 5.

then your going to do:

6m+5=57

Then subtract 5 from 57 and thats 52

and divide 52 from 6 and thats 8.

Answer:

30

Step-by-step explanation:

90+2x+x=180

3x=90

x=30

Answer:

30

Step-by-step explanation:

First we can find the total angle that we are "adding" to. This total angle is 180 degrees. Now since there is a right angle, H,E,G, we can remove 90 from that total to get 90. Now for x. Since there is a total of 3 x's, we divide 90 by 3 to get 30.

Answer:

Step-by-step explanation:

Answer:

fshdmso hdkdndjsj held by sks

Answer:

3 kilograms...........

Answer:

27 ÷ 9 = 3

well , yeah , am i right ?

Given:

The expression  is

[tex]-3\sqrt{50a^2b^2}[/tex]

To find:

The simplified form of the given expression.

Solution:

We have,

[tex]-3\sqrt{50a^2b^2}[/tex]

It can be written as

[tex]=-3\sqrt{2\times 25a^2b^2}[/tex]

[tex]=-3\sqrt{2\times 5^2a^2b^2}[/tex]

Using the properties of radical and logarithm, we get

[tex]=-3\sqrt{2\times (5ab)^2}[/tex]        [tex][\because (mn)^x=m^xn^x][/tex]

[tex]=-3\sqrt{2}\times \sqrt{(5ab)^2}[/tex]               [tex][\because \sqrt{mn}=\sqrt{m}\sqrt{n}][/tex]

[tex]=-3\sqrt{2}\times 5ab[/tex]

[tex]=-15\sqrt{2}ab[/tex]

Therefore the simplified form of the given expression is [tex]-15\sqrt{2}ab[/tex].

Answer:

y = [tex]-\frac{1}{5}x[/tex] - 4

Step-by-step explanation:

As we know the point slope form of an equation is as follows -

y - y₁ = m ( x - x₁ )

As we have slope , m = [tex]-\frac{1}{5}[/tex]

And point (x₁ , y₁ ) = ( -5, -3)

⇒ y - ( -3) = [tex]-\frac{1}{5}[/tex] ( x - (-5) )

⇒ y + 3 = [tex]-\frac{1}{5}[/tex] ( x + 5 )

⇒ y + 3 = [tex]-\frac{1}{5}[/tex] x - 1

⇒ y =  [tex]-\frac{1}{5}[/tex] x - 1 - 3

⇒ y =  [tex]-\frac{1}{5}[/tex] x - 4

So, the equation becomes

y = [tex]-\frac{1}{5}x[/tex] - 4

Answer:

57

Step-by-step explanation:

Hey there!

To find the solution, plug in 5 for y. When you do this you get, 7+2(5)². Square the 5 to get 25. And then you att 7+2(25). 25 x 2 is 50. 50 +7 is 57.

Hope this helps :)

Answer:

2A=A+A

Step-by-step explanation:

2A=A*A, not A+A

Answer:

C. ????

Step-by-step explanation:

Answer: c

Step-by-step explanation:

Answer:

25 of 121

Step-by-step explanation:

The correct answer is:

25 of 121

hegarty maths man told me so.

Answer:

x=0 and y=-5

Step-by-step explanation:

hope this helps!

your going fail?! ill help itis 6

Step-by-step explanation:

Answer:

its either a or d

Step-by-step explanation:

help me someone

Answer:

two solutions -10 and 2

Step-by-step explanation:

Answer:

C) 4,000

Step-by-step explanation:

I hope this helps :)

Answer:

Sin Z = 40/85

Tan G = 75/40

Cos Z = 75/85

Sin M = 1

Step-by-step explanation:

Answer:

174 cheeseburgers

Step-by-step explanation:

The computation of the number of 3 by 4 pound cheese burgers made is shown below:

3 by 4 would be written as 0.75 pound

And, 130 2 ÷ 3 = 130.66667 pounds

Now the number of 3 by 4 pound cheese burgers made is

= 130.66667 pounds ÷ 0.75 pound

= 174.22

= 174 cheeseburgers

Answer:

[tex] \boxed{x = 3}[/tex]

Step-by-step explanation:

[tex] {5}^{2} = {4}^{2} + {x}^{2} \\ {x}^{2} = {5}^{2} - {4}^{2} \\ {x}^{2} = 9 \\ x = \sqrt{9} \\ x = 3[/tex]

Answer:

4

Step-by-step explanation:

1.25(4x-10)=7.5

First step is to divide the 1.25 on both sides

4x-10 = 6

next step is to get x by itself by adding 10 to both sides

4x = 16

continue getting x by itself by dividing both sides by 4

x = 4.