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Over [174]
3 years ago
12

Pls help and explain

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
7 0

Answer:  x(7 - 2)    <em>none of the answer choices are correct</em>

<u>Step-by-step explanation:</u>

7x + (-2x)

= 7x - 2x       (opposite signs changes to a negative sign)

factor out an x:

= x(7 - 2)

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$460, 2.5%, 4 years pleas help me this is due today!
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Answer:

Intrest earned: $46

Step-by-step explanation:

I = prt

$460 x 0.025 x 4 = $46

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3 years ago
An element with mass 210 grams decays by 8.3% per minute. How much of the element is remaining after 15 minutes, to the nearest
alexandr1967 [171]

Answer:

57.2 g

Step-by-step explanation:

0 0
4 years ago
Edmund wants to make socially responsible purchases which question should he ask? A) how much does the item cost B) What is the
julia-pushkina [17]

Answer:

Step-by-step explanation:

social responsibility is an ethical framework that suggests that an entity, be it an individual or an organization, has an obligation to act for the benefit of society at large. In other words, working in ways that are not harmful to society.

the question he should ask is : were the people who made the item paid a livable wage.

7 0
3 years ago
Mrs.Brooks lacks 7 from being fice times as old as her son. Six years from now she will lack 3 years from being three times as o
nalin [4]

Answer:

Step-by-step explanation:

Let the age of of Mrs brook be x

Age of her son be y

If Mrs.Brooks lacks 7 years from being five times as old as her son, this means;

x = 5y - 7 ..... 1

six years from now;

Mrs brooks age = x + 6

sons age = y + 6

If Six years from now she will lack 3 years from being three times as old as her son, this means;

x+ 6 = 3(y+6) - 3

x+6 = 3y + 18 - 3

x+6 = 3y + 15 .... 2

substitute 1 into 2;

(5y - 7)+6 = 3y + 15

5y - 1 = 3y + 15

5y-3y = 15 + 1

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y = 8

substitute y = 8 into equation 1;

x = 5y - 7

x = 5(8)-7

x = 40-7

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Hence the mrs brook is 33 years old

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3 0
3 years ago
Which quadratic equation is equivalent to (x + 2)2 + 5(x + 2) – 6 = 0?
Darya [45]
Quadratic is in the form
ax^2+bx+c=0

so distribute and stuff and simplify
remember
a(b+c)=ab+ac

(x+2)^2+5(x+2)-6=0
remember order of opertaions
(x+2)(x+2)+5(x+2)-6=0
x^2+4x+4+5x+10-6=0
add like terms
x^2+9x+8=0
3 0
4 years ago
Read 2 more answers
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