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3 years ago

13

The briarwood middle school chess club has 55 members. 22 of the members are in seventh grade. What percent of the members of th

e chess club are in the seventh grade?

1 answer:

Oduvanchick [21]3 years ago

8 0

22 out of 55 is 40% I believe

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A rectangle has an area of 72 swaure units. The width of the rectangle is 9 units. The length of the rectangle is 2x + 4. What i

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Answer:

8 units

Step-by-step explanation:

<u>Area of a rectangle</u> = <em>Width</em> multiplied by Length

Substitute in all the known numbers into this formula to get

<u>72</u> = <em>(9)</em> × $(2x+4)$

Solve the equation for x, to find out the length

$9(2x+4)=72$

$2x+4=72/9$

$2x+4=8$

$2x=8-4$

$2x=4$

$x=4/2$

$x=2$

Length of the rectangle = $(2x+4)$

$2(2)+4$

$4+4=8$

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3 years ago

Find the coordinates of the midpoint of the segment whose endpoints are R(9, 3) and S(-1, -9).

amm1812

Answer:

$(4, -3 )$

General Formulas and Concepts:

<u>Pre-Algebra I</u>

Order of Operations: BPEMDAS

<u>Algebra I</u>

Midpoint Formula: $(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2} )$

Step-by-step explanation:

<u>Step 1: Define</u>

R (9, 3)

S (-1, -9)

<u>Step 2: Find midpoint</u>

Substitute: $(\frac{9-1}{2}, \frac{3-9}{2} )$
Subtract: $(\frac{8}{2}, \frac{-6}{2} )$
Divide: $(4, -3 )$

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3 years ago

Amir pitches a baseball at an initial height of 6 feet, with a velocity of 73 feet per second. If the batter misses, about how l

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3 years ago

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What is the value of the expression (−2 4/5)÷(−1.4)

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Answer:

2

Step-by-step explanation:

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3 years ago

In the last 10 presidential elections, the democratic candidate has won six times in Michigan and four times in Ohio. What is th

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6/10 x 4/10 =0.24
0.24 x 100 = 24%

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2 years ago