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2 years ago

Decrease 1800 in the ratio 5:3

Mathematics

1 answer:

oksano4ka [1.4K]2 years ago

8 0

Answer:

3000

Step-by-step explanation:

a decrease in the ratio 5:3 implies that:

new quantity :old quantity :5:3

let new quantity be x.

x:1800=5:3

x/1800=5/3

3x=9000

x=9000/3

x=3000

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2 years ago

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Tickets to a local circus cost $5 for students and $8 for adults. A group of 9 people spent a total of $60. How many adults were

S_A_V [24]

Answer:

Step-by-step explanation:

You need to set up and solve a system of linear equations here.

Let s and a represent the number of students and adults respectively.

Then s + a = 9, and s = 9 - a.

Total ticket cost for the adults was ($8/adult)(a)

and for the students ($5/student)(s).

Total cost of the tickets was then ($8/adult)(a) + ($5/student)(s) = $60.

Then our system of linear equations is:

8a + 5s = 60

a + s = 9, or s = 9 - a. Substituting 9 - a for s, we get:

8a + 5(9 - a) = 60.

Then 8a + 45 - 5a = 60, or 3a = 15.

Solving for a, we get a = 5.

Solving for s using s = 9 - a, we get s = 9 - 5, or s = 4.

There were 5 adults in the group (and 4 students).

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2 years ago

Weapon of math destruction trig. day 1

ivolga24 [154]

The questions are illustrations of trigonometry ratios and right triangles

The value of x is 11.8310
The tree is 23.3154 feet tall
The depth of the sub is 376.7770 meters

Trigonometry ratio

Trigonometry ratios are very useful in determining the measure of angles, and the side lengths of a right triangle.

<h3>Question 1</h3>

The value of x is calculated using the following sine trigonometry ratio

$\sin(25) =\frac{5}{x}$

Make x the subject

$x =\frac{5}{\sin(25)}$

This gives

$x =11.8310$

Hence, the value of x is 11.8310

<h3>Question 2</h3>

This question is illustrated by the first diagram in the attached figure

The height (h) of the tree is calculated using the following tangent trigonometry ratio

$\tan(25) =\frac{h}{50}$

Make h the subject

$h = 50 \times \tan(25)$

This gives

$h = 23.3154$

Hence, the tree is 23.3154 feet tall

<h3>Question 3</h3>

This question is illustrated by the second diagram in the attached figure

The depth (h) of the sub is calculated using the following tangent trigonometry ratio

$\tan(37) =\frac{h}{500}$

Make h the subject

$h = 500 \times \tan(37)$

This gives

$h = 376.7770$

Hence, the depth of the sub is 376.7770 meters

Read more about trigonometry ratios at:

brainly.com/question/6241673

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2 years ago

1. Find the midpoint of AB<br> given A(-3, -4) and B(1,6)

emmainna [20.7K]

Answer:

-1,1

Step-by-step explanation:

because if you plot the points that is half.

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2 years ago

Sandra is cooking her famous brownies for her class. For her recipe, she needs 5/7 of a cup of sugar, and 1/8 as much salt as su

jarptica [38.1K]

Answer:

$\frac{5}{56}$ salt does she need for her recipe.

Step-by-step explanation:

As per the statement:

For her recipe:

She needs = $\frac{5}{7}$ of a cup of sugar.

It is also given that: 1/8 as much salt as sugar.

⇒ She needs salt for her recipe = $\frac{1}{8} \cdot \frac{5}{7} = \frac{5}{7 \cdot 8} = \frac{5}{56}$

Therefore, $\frac{5}{56}$ salt does she need for her recipe.

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3 years ago

Decrease 1800 in the ratio 5:3​

Decrease 1800 in the ratio 5:3