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SIZIF [17.4K]
3 years ago
9

What is the value of x in the equation x - y = 30, when y = 15?

Mathematics
1 answer:
dezoksy [38]3 years ago
7 0

Step-by-step explanation:

x-y=30

then y should be 15

x-15=30

x=30+15

x=45

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Write a real-life problem that you can solve using a 45 degree, -45 degree, -90 degree triangle with an 18-ft hypotenuse. Descri
finlep [7]

Answer:

A triangle with angles:

"45°, 45°, 90°"

Is a triangle rectangle, with two catheti of equal length.

Now, there is a lot of problems that you can solve with this:

"Suppose that you want to find the height at which you need to attach a wire in a tree, such that the distance between the tree and the ground is 18ft, and the distance between the base of the tree and the two points where the wire is fixed is exactly the same"

Well, here we have a triangle rectangle with a hypotenuse of 18 ft, with cathetus of equal length (the catheti are the tree and the distance between the base of the tree and the point where the wire is attached at the ground)

And because the catheti are equal, then the angles are 45°, 45° and 90°.

8 0
3 years ago
A recipe for homemade clay calls for 6 cups of water for every 12 cups. How many cups of water are needed when 4 cups of flour a
pochemuha

Answer:

2 cups of clay

Step-by-step explanation:

Given data

we are given that  6 cups of water for every 12 cups of clay

  i.e

12 cups of clay require 6 cups of water

4 cups of clay will require x cups of water

cross multiply

12x= 4*6

12x= 24

divide both sides  by 12

x= 24/12

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6 0
3 years ago
Jordan ran 2/3 of a mile. Jackson
Alex_Xolod [135]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Which expresses 216:270 in its simple form
Ivanshal [37]

Answer:

4/5

Step-by-step explanation:

Steps to simplifying fractions

Find the GCD (or HCF) of numerator and denominator

GCD of 216 and 270 is 54

Divide both the numerator and denominator by the GCD

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270 ÷ 54

Reduced fraction:  

4

5

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3 years ago
PLS HELP THIS IS HARD ANYONE PLS
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Answer:

a or c

Step-by-step explanation:

4 0
2 years ago
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