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4 years ago

3/24 =33/x. Use equivalent ratios to find the unknown value

Mathematics

1 answer:

Tasya [4]4 years ago

7 0

X/the answer is 264
because 33 times 24 is 792 and divide that by 3 is 264
hope this helps :)

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The speed of sound in air is 340 m/s. How far , in meters, would a sound of wave travel on 7 seconds?

Rasek [7]

Answer:

2 380m

Step-by-step explanation:

very simple just multiply 7×340

4 0

2 years ago

Hall Construction Company signed a contract with a customer for the construction of a new $ 500,000 warehouse. At the signing, H

topjm [15]

Answer:

he gets alot of money and is very good at what he does

so his income per year is around

551,800$ a year your welcome

but if we are doing and average

i need to devide by 2

so his average a year might just be

275,900$ a year

vote brainliest hope this helps

Step-by-step explanation:

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=5x-4%2B2%28x-4%29%3D16" id="TexFormula1" title="5x-4+2(x-4)=16" alt="5x-4+2(x-4)=16" align="ab

mariarad [96]

Answer:

$\boxed{x = 4}$

Step-by-step explanation:

=> 5x-4+2(x-4) = 16

Expanding the brackets

=> 5x-4+2x-8 = 16

Combining like terms

=> 5x+2x-4-8 = 16

=> 7x - 12 = 16

Adding 12 to both sides

=> 7x = 16+12

=> 7x = 28

Dividing both sides by 7

=> x = 4

3 0

3 years ago

Read 2 more answers

I need help! Will mark Brainliest for full answer!!!

Softa [21]

Answer:

Part a .............> x = 11

Part b .............> k = 57.2

Part c .............> y = 9.2

Explanation:

The three problems deal with inverse variation between two variables

An inverse variation relation between two variables means that when one of the variables increases, the other will decrease (and vice versa)

Mathematically, an inverse variation relation is represented as follows:

$y = \frac{k}{x}$

where x and y are the two variables and k is the constant of variation

Now, let's check the givens:

Part a:

We are given that y = 3 and k = 33

Substitute in the original relation and solve for x as follows:

$y = \frac{k}{x}\\ \\3 = \frac{33}{x}\\ \\x=\frac{33}{3}=11$

Part b:

We are given that y = 11 and x = 5.2

Substitute in the original relation and solve for k as follows:

$y=\frac{k}{x}\\ \\11=\frac{k}{5.2}\\ \\k=11*5.2=57.2$

Part c:

We are given that x=7.8 and k=72

Substitute in the original relation and solve for y as follows:

$y=\frac{k}{x}=\frac{72}{7.8}=9.2$ to the nearest tenth

Hope this helps :)

6 0

3 years ago

Calculate the original price of these items before the

Aloiza [94]

Answer:

50 and 30.94

Step-by-step explanation:

The coat cost 46.5 pounds after a 7 percent reduction

so we can write:

46.5⇒ (100-7)⇒ 93 percent
x(the initial price) ⇒ 100 percent

using the proprtionality relation:

x= (100*46.5)/93 = 50

so the initial price of the coat is 50 pounds

The jumper costs 32.8 pounds after an increase of 6 percent

so:

32.8⇒(100+6)⇒ 106 percent
x (the initial price)⇒ 100 percent

using proportionality:

x= (100*32.8)/106 = 30.94

the initial price is 30.94 pounds

7 0

3 years ago

Read 2 more answers