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3 years ago

Evaluate the expression when b=-6

Mathematics

1 answer:

kirill115 [55]3 years ago

4 0

I believe the answer is 88

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There are 20 triangles and 8 circles. What is the simplest ratio of circles to total shapes?

Rudik [331]

Answer:

5 to 2

Step-by-step explanation:

You can simplify both 20 and 8 by 4.

20/4 = 5

8/4 = 2

3 0

3 years ago

Jeremy raised $250 for charity last year. This year he raised 20% more than he raised last year. How much money did Jeremy raise

Lesechka [4]

You would find this by doing 250 times 20% which is .2 and you would get 50 so you would add 250 plus 50 and get 300.
The answer is $300

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3 years ago

Read 2 more answers

Solve 0.25[2.5x + 1.5(x – 4)] = –x.

zheka24 [161]

Answer:

X = 0.75

Step-by-step explanation:

0.25[2.5x + 1.5(X-4)]= -X

0.25[2.5x + 1.5x - 6] = -x

0.25[4x -6] = -x

1x + x = 1.5

2x = 1.5

x = 1.5/2

x = 0.75

8 0

3 years ago

Ax + bx = 0<br> Solve equation for x

Serga [27]

X=0 is the value....

8 0

3 years ago

Read 2 more answers

△ABC ≅ △DEF, EF = x 2 - 7, and BC = 4x - 2.

Artist 52 [7]

Answer:

Therefore the value of x is 5.

Step-by-step explanation:

Given:

△ABC ≅ △DEF,

EF = x 2 - 7, and

BC = 4x - 2.

To Find:

the values of x. = ?

Solution:

△ABC ≅ △DEF ........Given

If two Triangles are congruent then the Corresponding Parts of Congruent Triangles are Congruent.

∴ BC ≅ EF ...................CPCTC

Substituting the values we get

$4x-2=x^{2}-7\\x^{2}-4x-5=0$

Now By Factorizing we get

$x^{2}-5x+x-5=0\\x(x-5)+1(x-5)=0\\(x+1)(x-5)=0\\x+1=0\ or\ x-5=0\\x=-1\ or\ x=5\\x\ cannot\ be\ negative\\\therefore x=5$

Therefore the value of x is 5.

8 0

4 years ago