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STatiana [176]
3 years ago
7

Write a story to match the equation x + 2 1/2 = 10

Mathematics
1 answer:
ryzh [129]3 years ago
8 0

Answer:

Step-by-step explanation:

mx+21/2 = 10 // - 10

x+21/2-10 = 0

x+1/2 = 0 // - 1/2

x = -1/2

x = -1/2

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Simplify the expression: Show your work. Write the answer in standard form (15 +6d - d²) + (-5d² - 18 + 6d) PLEASE HELP
mezya [45]

Answer:

-6d^2 + 12d - 3

Step-by-step explanation:

use PEMDAS

parentheses

exponents

multiplication

division

addition

subtraction

use that order to solve problems like that.

6 0
3 years ago
3. The diagonal of a rectangular field is 169 m. Ifthe ratio of the length to the width is 12:5, find the: (a) (b) dimensions; p
Kazeer [188]

The dimensions of the rectangle are length 156 m and a width of 65m, and a perimeter P = 442m

<h3>How to find the dimensions of the rectangle?</h3>

For a rectangle of length L and width W, the diagonal is:

D = \sqrt{L^2 + W^2}

Here we know that the diagonal is 169m.

And the ratio of the length to the width is 12:5

This means that:

W = (5/12)*L

Replacing all that in the diagonal equation:

169 = \sqrt{((5/12)^2*L^2 + L^2} \\\\169^2 = (25/144)*L^2 + L^2 = ( 25/144 + 1)*L^2\\\\\frac{169}{\sqrt{25/144 + 1} } = L = 156

So the length is 156 meters, and the width is:

W = (5/12)*156 m = 65m

Finally, the perimeter is:

P = 2*(L + W) = 2*(156 m + 65m) = 442m

If you want to learn more about rectangles:

brainly.com/question/17297081

#SPJ1

8 0
2 years ago
3. Cameron's car averages 25 miles
Triss [41]

Answer:15.2

Step-by-step explanation:380/25

8 0
3 years ago
Read 2 more answers
Which of the following values is the solution to the equation -35x = -105 ? 3 -3
Nikolay [14]

Answer:

3

Step-by-step explanation:

it will be 3 if you want to find the positive number

3 0
4 years ago
WILL GIVE U BRAINLIEST
Rama09 [41]

Answer:

C

Step-by-step explanation:

4 0
3 years ago
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