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3 years ago

Help!I really need this

Mathematics

1 answer:

brilliants [131]3 years ago

4 0

Y=5x would give them the money they earn after all the car washes. In order to calculate when they make a profit, you could use:

5x>75

So, you can divide 75 by 5 to get that they need to wash at least 15 cars to earn all the money they spent on setup, and to make a profit, they must wash more than that.

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Please help I don’t know this question .

serg [7]

x = 6

AB = 11

BC = 22

Hope that helps :)

6 0

3 years ago

Need help desperately T~T

babunello [35]

As you can see, angle 5 and angle 6 are supplementary. And angle 5 and angle 3 are congruent because they are alternate interior angles.

So it will be
x+2 = 180- x+3
move x over from the right to the left
2x+2 = 183
move 2 over from the left to the right
2x = 181
divide by 2
x= 90.5

and angle 3 and angle 1 are vertical angles so they are congruent. Using the angle 3 formula to solve for the answer:

90.5+3 =93.5

When angles are congruent, their measures are congruent, therefore, measure of angle 1 is 93.5

4 0

3 years ago

Bernard solved the equation 5x+(-4)=6x+4 using algebra tiles.Which explains why Bernard added 5 negative x-tiles to both sides i

Volgvan

5x+(-4)-5x=6x+4-5x
-4=x+4
x=-8

To get rid of 5x on the left side.

6 0

3 years ago

Read 2 more answers

A is directly proportional to b. When a is 6, b is 72. Find b when a is 8. 3

adelina 88 [10]

Answer:

a) "K" is proportional Constant K= 0.0833

b) The value of b = 99.639

Step-by-step explanation:

Explanation :-

Given 'a' is directly proportional to 'b'

a ∝ b

a = k b ....(i)

where "K" is proportional Constant

Case(i):-

when a =6 and b=72

a = k b

⇒ 6 = k (72)

⇒ $K = \frac{6}{72} = \frac{1}{12} = 0.0833$

Case(ii):-

Given a = 8.3

a = k b

⇒ 8.3 = 0.0833 ×b

⇒ $b = \frac{8.3}{0.0833} = 99.639$

Final answer:-

a)"K" is proportional Constant K= 0.0833

b) The value of b = 99.639

6 0

3 years ago

The length of a rectangle is 4 cm longer than the width of the rectangle. The perimeter of the rectangle is 88 Centimeters.What

Tcecarenko [31]

Im not sure but I think the answer is 9.4cm2

8 0

3 years ago