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Elena L [17]
3 years ago
8

What is an equivalent expression for 5(2x+y-3z)

Mathematics
2 answers:
Delicious77 [7]3 years ago
6 0
The equivalent expression is 10x+5y-15z
olga2289 [7]3 years ago
6 0

You could found a lot of equivalent expressions for this.

In math, you could change and rearrange a lot for doing that.

In this case, the easiest way is to distribute the 5 with all of the other terms in the parenthesis.

5*(2x+y-3z)=

(5*2x)+(5*y)-(5*3z)=

10x + 5y - 15z = an this is an equivalent expression

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The value of a car depreciates by 35% per year. Work out the current value of a car bought 2 years ago for £20000
Rzqust [24]

First year: the depreciation is (35/100) x 20000 = £7000; now the value of the car is £20000 - £7000 = £13000;

Second year: the depreciation is (35/100) x 13000 = £4550; the current value of the car is £13000 - £4550 = £8450.

6 0
3 years ago
What is another name for ray AE ?
zlopas [31]

Answer:

EA

Step-by-step explanation:

5 0
3 years ago
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What id the value of the expression (9+15)÷3+2
Aneli [31]

PEMDAS so (9+15)= 24 , 24/3 = 8 , 8+2 = 10

4 0
4 years ago
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Find the value of the variable and GH if H is between G and I. GI=5b+1, HI=4b-5, HI=7
fgiga [73]

Answer:

The value of the variable 'b' is 3 and GH is 9

Step-by-step explanation:

Given:

GI = 5b+1\\\\HI=4b-5\\ \\HI=7

H is between G and I

Such that G - H - I

To Find:

GH = ?

Solution:

On Substituting HI we get

4b-5=7\\\\\therefore 4b=7+5=12\\\\b=\dfrac{12}{4}=3

Substituting 'b' in HI and GI we get

HI=4\times 3 -5=12-5=7\\\\\therefore HI = 7

GI=5\times 3 +1=15+1=16\\\\\therefore GI = 16

Now, by Line Addition Property we get

GI=GH+HI

Substituting 'HI' and 'GI' we get

16=GH+7\\\\\therefore GH=16-7=9

The value of the variable 'b' is 3 and GH is 9

4 0
4 years ago
An isosceles triangle has two sides of equal length, a, and a base, b. The perimeter of the triangle is 15.7 inches, so the equa
wolverine [178]

Answer:


Step-by-step explanation:

It is given that an isosceles triangle has two sides of length a and base b, then the perimeter of an isosceles triangle= Sum of all the sides

⇒a+a+b=15.7

⇒2a+b=15.7

⇒b=15.7-2a

Also, we know that he sum of the lengths of any two sides of a triangle must be greater than the length of the third side that means,

⇒a+a>b

⇒2a>b

Now, substituting the value of b in the above equation, we get

2a>15.7-2a

⇒4a>15.7

⇒a>3.925

Now, b=15.7-2a, therefore b=15.7-2(3.925)=15.7-7.85=7.85

Thus possible value of b is 7.85.

8 0
4 years ago
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