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3 years ago

How do you learn ratios quick ?

Mathematics

1 answer:

atroni [7]3 years ago

8 0

Ratios are like fractions example 5:6= 5/6
so if you know the basics of fractions you can also use it as ratios.

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Find the next four times in each sequence

Ierofanga [76]

Answer:

For part 6: 39

Step-by-step explanation:

You have your starting number and then it gets added to a product of two numbers. 8 + (2x2) = 12. 12 + (2x3) = 18. 18 + (3x3) = 27. 27 + (3x4) = 39. That is the most logical answer I was able to find.

4 0

4 years ago

2/9 of the people on a restaurant are adults. If there are 95 more children than adults, how many children are there in the rest

lora16 [44]

Answer: 133 children

Step-by-step explanation:

children = x

adults = y

2/9 (x+y) = y.....

7y - 2x = 0

y+95=x

7y - 2(y + 95) = 0

7y -2y -190 = 0

5y +190

y = 38

38+95 = x

x = 133 children

6 0

3 years ago

Read 2 more answers

Ron Co. sold sweatshirts ($20) and baseball caps ($10). If total sales were $2,860 and people bought 6 times as many sweatshirts

NISA [10]

It's been answered at brainly.com/question/4030336

6 0

3 years ago

If x varies inversely as the square of y and if x=3 when y=-1, what is the value of x when y =3

lyudmila [28]

Answer:

$x$ would be $(1/3)$ when $y = 3$ .

Step-by-step explanation:

The question states that $x$ varies "inversely" as $y^2$ . In other words, there is a non-zero number $a$ (a constant) such that:

$\displaystyle x = \frac{a}{y^2}$ .

The challenging part is to find the value of $a$ in this equation.

Given that $x = 3$ when $y = -1$ , replace the $x$ in this equation with $3$ and $y$ with $(-1)$ . This equation should still be valid:

$\displaystyle 3 = \frac{a}{(-1)^{2}}$ .

Solve for $a$ :

$a = 3 \times (-1)^2 = 3$ .

Hence, the relation between $x$ and $y$ becomes:

$\displaystyle x = \frac{3}{y^2}$ .

Find the value of $x$ when $y = 3$ by replacing the $y$ in this equation with $3$ .

$\displaystyle x = \frac{3}{3^2} = \frac{1}{3}$ .

In other words, the value of $x$ would be $\displaystyle \frac{1}{3}$ when $y = 3$ .

7 0

3 years ago

The weight of oranges growing in an orchard is normally distributed with a mean weight of 7 oz. and a standard deviation of 1.5

Katena32 [7]

Answer:

2 to 11 ounces would be the interval.

Step-by-step explanation:

Add 3 standard deviations above and below the mean to get the range in which 99.7% of the data in a normal distribution will fall

6.5 + 4.5 = 11

6.5 - 4.5 = 2.

Hope this helped!

3 0

3 years ago