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3 years ago

The rule is X/5-8=Y What does Y equals to when X=20

Mathematics

1 answer:

tankabanditka [31]3 years ago

7 0

Answer:

Y= -4

Step-by-step explanation:

According to the rules of GEMDAS, division precedes subtraction.

Substitute 20 into where X is in the equation, so it would look like:

20/5-8=Y

From here, simplify. 20/5 is 4. 4-8=-4

Here's how work would look like on my paper"

X/5-8=Y

20/5-8=Y

4-8=Y

Y=-4

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Help guys pls cmon im bad at math

inn [45]

Answer:

ba.80 5. Area =72 5. Perimeter =44 6b.36

Step-by-step explanation:

ba. b*h is the formula the base is 10 and the height is 8 multiplied is 80.

Explanation=in the comments

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2 years ago

Name a pair of fractions that use the least common denominator and are equvivalent to 9/10 and 5/6

nadezda [96]

When we have two fractions, it's best to find the least common denominator.

This means that we need two fraction that are EQUAL to the other two, but have different denominators (must be the smallest but common).

Alright, let's multiply

9/10 * 3/3 = 27/30
5/6 * 5/5 = 25/30

Now we have our two fractions:

27/30 and 25/30

7 0

3 years ago

You are putting a rectangular hot tub on your back porch. It is 6 feet long, 5 feet wide, and 3 feet deep. How much will it cost

sleet_krkn [62]

It costs $ 3.4 to fill the hot tub

<h3>Solution:</h3>

Given that, You are putting a rectangular hot tub on your back porch

The rectangular hot tub is of shape cuboid

The volume of cuboid is given as:

$\text{Volume of cuboid } = length \times width \times height$

It is 6 feet long, 5 feet wide, and 3 feet deep

Therefore,

length = 6 feet

width = 5 feet

height = 3 feet

Thus volume of rectangular hot tub is:

$volume = 6 \times 5 \times 3 = 90$

Thus volume of rectangular tub is $90 ft^3$

Convert feet to gallons

We know that,

1 cubic feet = 7.48052 gallon

Therefore,

90 cubic feet = 7.48052 x 90 = 673.247

Thus gallons of water tub can hold is 673.247 gallons

Given that it costs $ 5 per 1000 gallons

1000 gallons = $ 5

Therefore,

1 gallons = $ $\frac{5}{1000}$

Find for 673.247 gallons

673.247 gallons = $\frac{5}{1000} \times 673.247 = 3.366235 \approx 3.4$

Thus it costs $ 3.4 to fill the hot tub

5 0

3 years ago

The ratio of boys to girls in math class is 3 to 5 if there are 9 boys how many girls are there

Alexxx [7]

Answer:

Step-by-step explanation:

for every three boys there are five girls

3 groups of 3 boys

3*5=15 girls

3 0

3 years ago

Solve 6x + 3) = 21.

LiRa [457]

Answer:

18x^2 - 9

Step-by-step explanation:

y = f(x)= 6x^3 - 9x + 4

dy/dx = d/dx(6x^3) - d/dx(9x) + d/dx (4)

=6.d/dx(x^3) - 9.d/dx (x) + d/dx. (4)

=6.3x^2 - 9.1 + 0 =18x^2 - 9

8 0

3 years ago