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3 years ago

15

John has $80. Every week, he spends $7.Create an equation that represents How much money, m, in dollars, will he have after the

fourth week? Enter the equation and the answer on separate lines. (Will give brainliest)

1 answer:

Ksivusya [100]3 years ago

7 0

Answer:

Something like M=80-(7x4)

Step-by-step explanation:

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A rectangle has a width of w . Its length is 4 more than twice the width. what is the area

vredina [299]

Answer:

if the width is W and the length is 4 more of twice the width therefore the length is 2W+4

area = length × width

= 2W+4×W

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2 years ago

How likely is it that the spinner will land on a green space?

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3 years ago

Read 2 more answers

Prove that if a and b are integers, then a^2-4b egal or non-egal 2

Lera25 [3.4K]

Answer:

tex]a^2 - 4b \neq 2[/tex]

Step-by-step explanation:

We are given that a and b are integers, then we need to show that $a^2 - 4b \neq 2$

Let $a^2 - 4b = 2$

If a is an even integer, then it can be written as $a = 2c$ , then,

$a^2 - 4b = 2\\(2c)^2 - 4b =2\\4(c^2 -b) = 2\\(c^2 -b) =\frac{1}{2}$

RHS is a fraction but LHS can never be a fraction, thus it is impossible.

If a is an odd integer, then it can be written as $a = 2c+1$ , then,

$a^2 - 4b = 2\\(2c+1)^2 - 4b =2\\4(c^2+c-b) = 2\\(c^2+c-b) =\frac{1}{4}$

RHS is a fraction but LHS can never be a fraction, thus it is impossible.

Thus, our assumption was wrong and $a^2 - 4b \neq 2$ .

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3 years ago

Find the value of x and y?<br> A) x=15 y=12<br> B) x=14 y=11<br> C) x=14 y=12<br> D) x=15 y=11

Alina [70]

im pretty sure the answer is c.

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3 years ago

Find the value of the expression below for x = 3. <br><br> x2+ 5 <br><br> A.8 B.11 C.14

Sergeeva-Olga [200]

Answer:

11

Step-by-step explanation:

Plz mark brainliest thanks

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3 years ago