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ohaa [14]
3 years ago
7

Which operation should be used to solve x + 3 = 7?

Mathematics
2 answers:
Bond [772]3 years ago
6 0

Answer:

SUbtraction

7-3=4 so X is 4

Step-by-step explanation:

Travka [436]3 years ago
4 0

Answer:

You can use the Subtraction property of equality

You have to subtract 3 on both sides to have x alone, which will give you x=4

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Https://www.bigideasmath.com/protected/content/ipe/grade%207/03/g7_03_04.pdf. click on this link and here you go with the answer!!!!
4 0
3 years ago
4 An angle of a
vagabundo [1.1K]

Answer:

10°,170°,10°,170°

Step-by-step explanation:

sum of adjacent angles of parallelogram=180

one angle=10°

adjacent angles=180-10=70°

4 0
2 years ago
Determine the smallest possible value if 10500 is a perfect square a perfect square<br>​
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The smallest possible value is 2625
4 0
3 years ago
Find the sum of the series and show your process for finding each term leading to the final sum.
Crazy boy [7]

ANSWER

\sum_{k=3}^5( - 2k + 5) =  - 9

EXPLANATION

The given series is

\sum_{k=3}^5( - 2k + 5)

This series is finite.

The expanded form is

\sum_{k=3}^5( - 2k + 5) = ( - 2 \times 3 + 5) + ( - 2 \times 4 + 5) + ( - 2 \times 5 + 5)

This simplifies to

\sum_{k=3}^5( - 2k + 5) = ( - 6 + 5) + ( - 8+ 5) + ( - 10+ 5)

\sum_{k=3}^5( - 2k + 5) = ( - 1) + ( - 3) + ( - 5)

\sum_{k=3}^5( - 2k + 5) =  - 9

5 0
3 years ago
the area of a rectangular volleyball court is 1800 square feet the courts length is twice it width write a system of equations t
Marianna [84]

Answer:

The dimensions of the rectangular volleyball court are 60 ft x 30 ft

Step-by-step explanation:

Let

x ----> the length of rectangular volleyball court

y ---> the width of the rectangular volleyball court

we know that

The area of the rectangular volleyball court is equal to

A=xy

A=1,800\ ft^2

so

1,800=xy ----> equation A

x=2y -----> equation B

substitute equation B in equation A

1,800=(2y)y

1,800=2y^2

Solve for y

Simplify

900=y^2

take square root both sides

y=30\ ft

<em>Find the value of x</em>

x=2y

substitute the value of y

x=2(30)=60\ ft

therefore

The dimensions of the rectangular volleyball court are 60 ft x 30 ft

7 0
3 years ago
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