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2 years ago

How do you solve a proportion divide or multiply there is a quiz!!!!!! you'll get brainliest!!!

Mathematics

2 answers:

Ilya [14]2 years ago

6 0

Step-by-step Proportion:

2 = X

3 = 12

Cross multiply:

2 x 12 = 24

3 x X = 3x

24 = 3x

Simplify:

8 = x

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Ksenya-84 [330]2 years ago

3 0

Answer:

A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."

Step-by-step explanation:

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You can pay $10 for 2 movie tickets assuming the same rate , how much would you pay for 5 movie tickets ?

11Alexandr11 [23.1K]

Answer:

If we assume every 2 movie tickets is $10 then every one ticket would be $5. Assuming this to be true then 5 tickets is $25.

StepByStep Explanation:

movie tickets = t

2t=10

t=5

5t=?

5(5)=?

25=?

?=25

8 0

3 years ago

I need help with this please.<br><br>f(x)=x+5<br>x=

aleksandrvk [35]

Answer:

X= - 5

Step-by-step explanation:

8 0

3 years ago

A set of n = 15 pairs of X and Y scores has SSX = 10, SSY = 40, and SP = 30. What is the slope for the regression equation for p

Mumz [18]

Answer:

Step-by-step explanation:

We have given $SS_X=10$ , $SS_Y=40$ and SP =30

We have to find the slope for regression on Y from X

The slope on Y from X is given by $b_{yx}=\frac{SP}{SS_X}$

As we have given the value of SP =30 and value of $SS_X=10$

So slope for regression will be $b_{yx}=\frac{30}{10}=3$

3 0

3 years ago

Ex 2.8<br> 3. find the maximum value of y for the curve y=x^5 -3 for -2≤x≤1

harkovskaia [24]

$y=x^5-3\\ y'=5x^4\\\\ 5x^4=0\\ x=0\\ 0\in [-2,1]\\\\ y''=20x^3\\\\
y''(0)=20\cdot0^3=0$

The value of the second derivative for $x=0$ is neither positive nor negative, so you can't tell whether this point is a minimum or a maximum. You need to check the values of the first derivative around the point.
But the value of $5x^4$ is always positive for $x\in\mathbb{R}\setminus \{0\}$ . That means at $x=0$ there's neither minimum nor maximum.
The maximum must be then at either of the endpoints of the interval $[-2,1]$ .
The function $y$ is increasing in its entire domain, so the maximum value is at the right endpoint of the interval.

$y_{max}=y(1)=1^5-3=-2$

4 0

3 years ago

What is the area of the square below ?

ivolga24 [154]

To find the are of a square, we simply square the value of a side
so..
${5}^{2} = area$
Area = 25 square units

6 0

3 years ago

How do you solve a proportion divide or multiply there is a quiz!!!!!! you'll get brainliest!!!​

How do you solve a proportion divide or multiply there is a quiz!!!!!! you'll get brainliest!!!