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Musya8 [376]
3 years ago
12

5/7(d+20)= -10 What is d?

Mathematics
2 answers:
STatiana [176]3 years ago
4 0

Answer:

-34

Step-by-step explanation:

stepan [7]3 years ago
4 0

Answer:

5

Step-by-step explanation:

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Refer to the rectangle below. The length of the rectangle is x + 12. The width of the rectangle is x + 3.
Elis [28]

Answer:

x^2+15x+36

Step-by-step explanation:

The complete question is shown in the attachment.

The length of the rectangle is x + 12. The width of the rectangle is x + 3.

Recall that area of a rectangle is Length \times Width

In terms of x, the area is (x+12)(x+3)

Recall the distributive property of real numbers: (a+b)(c+d)=a(c+d)+b(c+d)

We apply this property to get:

(x+12)(x+3)=x(x+3)+12(x+3)

We expand again to get:

(x+12)(x+3)=x^2+3x+12x+36

We now simplify to obtain:

(x+12)(x+3)=x^2+15x+36

The area of the rectangle is x^2+15x+36

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3 years ago
Sue's age is one year less than half her mother's age. The sum of their ages is 71 years. If x represents Sue's age, which equat
erastovalidia [21]
Option A would be your answer. We know 71 is the product. We also know that Sues age is one year less than half her mothers age. -1 comes from the problem saying one year less. We can already eliminate the other 3 options at this point.
5 0
4 years ago
Each child has 4 apples. If there are 39 children, how many apples are there in total
kodGreya [7K]

156Answer:

Step-by-step ex

5 0
3 years ago
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3 more than a number t is greater than or equal to 21
natulia [17]

The equation is saying t+3\geq 21. We can use algebra to subtract 3 from both sides to create t\geq 18.

Therefore, the value t is greater or equal to 18.

3 0
3 years ago
Find the x value <br> x^2 - 3x + 2 = 0
ladessa [460]

Answer:

2 and 1

Step-by-step explanation:

x^2 - 3x + 2 = 0

(x-2)(x-1) = 0

the x can be 2 and 1

3 0
3 years ago
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