MATHEMATICS MIDDLE SCHOOL

The sum of 3 consecutive odd integers is 18 less than five times the middle number. Find the three integers

Answers

Answer 1

Answer:

n, n + 2, n + 4 - three consecutive odd ntegers

n + (n + 2) + (n + 4) = 5(n + 2) - 18 |use distributive property

n + n + 2 + n + 4 = (5)(n) + (5)(2) - 18

3n + 6 = 5n + 10 - 18

3n + 6 = 5n - 8 |subtract 6 from both sides

3n = 5n - 14 |subtract 5n from both sides

-2n = -14 |divide both sides by (-2)

n = 7

n + 2 = 7 + 2 = 9

n + 4 = 7 + 4 = 11

Answer: 7, 9, 11.

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A corner shelf is 1/4 of a circle and had a radius of 10.5 inches. What is the area in square inches?

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A car rental company sells accident insurance to 24% of its customers. Out of 550 customers, about how many customers are predicted to purchase insurance?

Answers

When working with percents, don't divide them, because it will give you the wrong answer. So you must find the equivalent of the percent you're working with in decimal form, then multiply it by your number.
So, you would do 550 X .24 which equals 132 customers.

132 customers, I just did 550*.24

Find percent of change to- 1) 125cm to 87.5cm
2)132 days to 125.4 days
need it asap plzz

Answers

If you would like to solve the following equations, you can calculate it using these steps:

1) x% of 125 cm is 87.5 cm
x% * 125 = 87.5
x/100 * 125 = 87.5 /*100/125
x = 87.5 * 100 / 125
x = 70%

2) y% of 132 days is 125.4 days
y% * 132 = 125.4
y/100 * 132 = 125.4 /*100/132
y = 125.4 * 100 / 132
y = 95%

Answer:

132 days to 125.4 days

need it asap plzz

Step-by-step explanation:

in march, nick practice soccer for 42 hours. in April nick wants to get even better at soccer and plans to ptactice 18 hours more than he did last month. write an equation to find out how many hours nick plans to practice soccer in april

Answers

Answer: 60 hours.

Step-by-step explanation:

Let be "x" the amount of hours Nick practice in March and "y" the amount of hours Nick plans to practice in April.

Set up a system of equations:

$\left \{ {{x=42} \atop {y=x+18}} \right.$

Applying the Substitution Method, we can substitute the first equation into the second equation in order to find the value of "y". Therefore you get this result:

$y=x+18\n\ny=(42)+18\n\ny=60$

What is 15 = -y + 10

Answers

It's a simple linear equation in a single variable, 'y' . Its solution is the number
that 'y' must be in order to make the equation a true statement. Here's how to
find the solution:

Write the equation: 15 = -y + 10

Subtract 10 from each side: 5 = -y

Multiply each side by -1 : -5 = y

15=-y+10
=-10+15=-y
=5=-y
=-5=y
welcome :)

True or false: if a dilation is in a composition of transformations, the order in which you perform the composition does not matter. please explain your reasoning

Answers

THE ORDER MATTERS
if you don't do it in the right order you will find a completely different answer

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