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777dan777 [17]
3 years ago
6

60 cars to 20 cars indenify percent of change

Mathematics
1 answer:
Margaret [11]3 years ago
7 0

Answer: -66.67%, but if the answer is supposed to positive then the answer is 66.67%.

<em>* Hopefully this helps:) </em>

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Right and solve a proportion to answer the question what percent of 25 is 12
FrozenT [24]

Answer:

25% of 12 is 3

Step-by-step explanation:

Think of percents like fractions. 25% is 1/4 in fraction form. Then multiply 1/4 to 12, which is the same is as 12 divided by 4. And your answer is 3

8 0
3 years ago
Identify the slope and Y intercept of the graph of the equation then graph The equation y=4/5x+1
Juli2301 [7.4K]

Answer:

Slope: 4/5

Y-Intercept: 1

6 0
3 years ago
On one of the day you went to the gym, the ratio of men to women was 3 : 2.
balu736 [363]

Answer

Find out the  how many women were there .

To prove

Let us assume that the x is the scalar multiple of men and women.

As given

The ratio of men to women was 3 : 2.

Than

The total number of men = 3x

The total number of women = 2x

As given

If 120 men used the gym.

thus

120 = 3x

x = \frac{120}{3}

x = 40

The total number of women = 2 × 40

                                               = 80

Therefore 80 women were there in the gym .




5 0
3 years ago
Read 2 more answers
Solve for x in the equation.
labwork [276]

Answer:

The solution is \displaystyle x=1\pm \sqrt{47}. Fourth option

Explanation:

Solve for x:

2x^2+3x-7=x^2+5x+39

Move all the terms from the right to the left side of the equation, a zero in the right side:

2x^2+3x-7-x^2-5x-39=0

Join all like terms:

x^2-2x-46=0

The general form of the quadratic equation is:

ax^2+bx+c=0

Solve the quadratic equation by using the formula:

\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

In our equation: a=1, b=-2, c=-46

Substituting into the formula:

\displaystyle x=\frac{-(-2)\pm \sqrt{(-2)^2-4(1)(-46)}}{2(1)}

\displaystyle x=\frac{2\pm \sqrt{4+184}}{2}

\displaystyle x=\frac{2\pm \sqrt{188}}{2}

Since 188=4*47

\displaystyle x=\frac{2\pm \sqrt{4*47}}{2}

Take the square root of 4:

\displaystyle x=\frac{2\pm 2\sqrt{47}}{2}

Divide by 2:

\displaystyle x=1\pm \sqrt{47}

First option: Incorrect. The answer does not match

Second option: Incorrect. The answer does not match

Third option: Incorrect. The answer does not match

Fourth option: Correct. The answer matches exactly this option

8 0
3 years ago
A builder requires 35 buckets of mortar to build a wall.
Stolb23 [73]

Answer:

He needs 7 buckets of cement, and 28 buckets of sane.

Step-by-step explanation:

cement : sand

1:4 = 5

35/5 = 7

7*1=7 .          Cement

7*4=28 .       Sand

5 0
3 years ago
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