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3 years ago

Please help!!! ill mark brainliest!!

Mathematics

1 answer:

Schach [20]3 years ago

3 0

Answer:

where is the question

Step-by-step explanation:

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The original price of a new pair of shoes is $40. If there is a 20% discount on all shoes, how much is deducted from the origina

Bond [772]

Answer:

Step-by-step explanation:

for a discount of 20% we require to calculate 20% of $40

20% = $\frac{20}{100}$ = 0.2, hence

discount = 0.2 × $40 = $8

3 0

3 years ago

Find the first four terms of the sequence given a1=31 and an+1=an−3

Alex

Step-by-step explanation:

Given the formula

a(n+1)=an−3

The first term a(1) = 31

For the second term

a(2)

We have

a( 1 + 1) = a(1) - 3

a(2) = 31 - 3

a(2) = 28

For the third term

a(3)

We have

a(2+1) = a(2) - 3

a(3) = 28 - 3

a(3) = 25

For the fourth term

a(4)

That's

a(3+1) = a(3) - 3

a(4) = 25 - 3

a(4) = 22

Hope this helps you

4 0

3 years ago

What is the equation of the line shown in this graph?

Y_Kistochka [10]

The equation is y=-2x+4

8 0

3 years ago

Question 1 150% of what number is 84?

artcher [175]

Answer:

Step-by-step explanation:

150%=1.5

84/1.5=56

3 0

3 years ago

Read 2 more answers

Select the two values of x that are roots of this equation. X2 + 2x - 5 = 0

LenaWriter [7]

Answer:

$x=-1+\sqrt{6 }$

$x=-1-\sqrt{6 }$

Step-by-step explanation:

$x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

Ignore the A before the ±. It wouldn't let me type it correctly.

x² + 2x - 5 = 0

a = 1

b = 2

c = - 5

$x=\frac{-2±\sqrt{2^{2}-4((1)(-5)) } }{2(1)}$

$x=\frac{-2±\sqrt{4-4((1)(-5)) } }{2(1)}$

$x=\frac{-2±\sqrt{4+20 } }{2(1)}$

$x=\frac{-2±\sqrt{24 } }{2}$

$x=\frac{-2±\sqrt{(2)(12) } }{2}$

$x=\frac{-2±\sqrt{(2)(2)(6) } }{2}$

$x=\frac{-2±\sqrt{(2)(2)(2)(3) } }{2}$

$x=\frac{-2±(\sqrt{2} )(\sqrt{2})(\sqrt{(2)(3) )} }{2}$

$x=\frac{-2±2\sqrt{6 } }{2}$

Two separate equations

$x=\frac{-2+2\sqrt{6 } }{2}$

$x=\frac{-2-2\sqrt{6 } }{2}$

$x=-1+\sqrt{6 }$

$x=-1-\sqrt{6 }$

7 0

3 years ago