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3 years ago

Assume that y varies directly with x then solve y = 2.5 x = .5 when x = 20

Mathematics

1 answer:

velikii [3]3 years ago

5 0

Step-by-step explanation:

y=2.5| ?

x=0.5| 20

It'll be criss-crossed then it'll be:-

2.5×20=50

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How do i classify triangles?

12345 [234]

Answer:

By the angles and sides, but if you need more help here is a link to a video that could be pretty helpful.

Step-by-step explanation:

https://www.khanacademy.org/math/cc-fourth-grade-math/plane-figures/imp-classifying-triangles/v/scalene-isosceles-equilateral-acute-right-obtuse#:~:text=Learn%20to%20categorize%20triangles%20as,acute%2C%20right%2C%20or%20obtuse.

7 0

3 years ago

Read 2 more answers

A. Semi-annually:<br> B. Quarterly:<br> C. Monthly:<br> Please help:)

Jobisdone [24]

Quarterly or monthly because semi annually is to soon do I think monthly

4 0

3 years ago

Solve for the base. Round to hundredths when necessary.

Elena-2011 [213]

Answer:

2730.54
18.8%
62.5% (decrease)

Step-by-step explanation:

The applicable formula is ...

rate = portion/base

so ...

base = portion/rate

Of course, a percentage is a fraction that has been multiplied by 100%.

1. base = portion/rate = 456/0.167 ≈ 2730.54

The base is about 2730.54.

2. rate = portion/base = 50/266 ≈ 0.18797 ≈ 18.8%

The rate is about 18.8%.

3. The decrease can be figured from ...

rate of change = (new amount)/(original) -1 = 33/88 -1

= -5/8 = -0.625 = -62.5%

The rate of decrease is 62.5%.

6 0

3 years ago

1 1/3 divided by 3 + 1/3

Phantasy [73]

The first step to solve this problem is to convert the first mixed number to an improper fraction.
$\frac{4}{3}$ ÷ 3 + $\frac{1}{3}$
Dividing is equivalent to multiplying with the reciprocal value,, so next you will need to change the signs.
$\frac{4}{3}$ x $\frac{1}{3}$ + $\frac{1}{3}$
Multiply the fractions
$\frac{4}{9}$ + $\frac{1}{3}$
Finally,, add the two fractions together to get your final answer
$\frac{7}{9}$
This means that the correct answer to your question is $\frac{7}{9}$ .
Let me know if you have any further questions
:)

3 0

3 years ago

Could you solve it What is _____+______+______=30 Using 1,3,5,7,9,11,13 ,15 what are the numbers

wariber [46]

Answer:

We want to solve:

___ + ___ + ____ = 30

using the numbers:

1, 3, 5, 7, 9, 11, 13, 15.

Now, 30 is an even number.

And the given numbers are all odd.

A random even number is written as:

2*n (where n is an integer)

A random odd number is written as:

2*k + 1 (where k is an integer)

If we add 3 odd numbers, we get:

(2*k + 1) + (2*c + 1) + (2*j + 1) = 2*(k + c + j) + 3

= 2*(k + c + j + 1) + 1

(k + c + j + 1) is an integer, then we can write this as p

then the sum of 3 odd numbers can be written as:

2*p + 1

This means that the sum of 3 odd numers is always an odd number.

Then we can not find 3 odd numbers such that their sum is equal to 30.

if instead, we could use 4 numbers, like:

___ + ___ + ___ + ___ = 30

Then we could select:

15, 1, 5 and 9.

because:

15 + 1 + 5 + 9 = 15 + (1 + 5) + 9 = 15 + 6 + 9 = 15 + (6 + 9) = 15 + 15 = 30

6 0

3 years ago