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NeX [460]
2 years ago
8

PLS HELP I HAVE A TIMER!! HURRY ITS A MASTERY TEST

Mathematics
1 answer:
Solnce55 [7]2 years ago
4 0
B. Hope I helped sorry if I got it wrong
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The length of a rectangle is 8 feet more than its width. If the width is increased by 4 feet and the length is decreased by 5 fe
bezimeni [28]
Assign the following variables for the origina3l rectangle:
let w = width let w + 8 = length and the area would be w(w + 8) = w² + 8w

No for the second rectangle:
let (w + 4) = width and (w + 8 - 5) or (w + 3) = length
Area = length x width or (w + 4)(w + 3) = w² + 3w + 4w + 12 using the foil method to multiply to binomials. Simplified Area = w² + 7w + 12

Now our problem says that the two area will be equal to each other, which sets up the following equation:

w² + 8w = w² + 7w + 12 subtract w² from both sides
8w = 7w + 12 subtract 7w from both sides
w = 12 this is the width of our original rectangle
recall w + 8 = length, so length of the original rectangle would be 20
7 0
3 years ago
If the average of x, y, and z is 32 and the average of y and z is 27, what is the average of x and 2x?
Orlov [11]
X + y + z = 32 * 3
27 + 27 + x = 96
X = 54
2x = 108
Average of x and 2x = (54+108) / 2 = 164 / 2 = 82
Average of X and 2X = 82
6 0
2 years ago
heyy soo i just started math class and im veryy confused I've tried different things to get to the answer but it didn't work soo
german

yes sure, i learned this before so

1. a. make a proportion here, of percentage. \frac{225}{250} =\frac{x}{100} if you cross multiply and divide you get 90%.

1. b. obviously the empty seats would be 10%.

2. a. proportion again, \frac{0.90}{6.00} =\frac{x}{100} cross multiply then divide you ge 15%

3. 30% in decimal form is 0.3. multiply it then to the total amount, so 0.3 x 15 = 4.5

7 0
3 years ago
Read 2 more answers
You and three friends order pizza for large drinks in a loaf of Chi's bread you split the cost evenly with your friends what ord
Juliette [100K]

Answer:

I believe it would be division.

Step-by-step explanation:

Sorry if its wrong, i havent done a question like this in a long time, please forgive me!

6 0
2 years ago
What is the value of x in the equation -2/3x + 9 = 4/3x - 3 ?​
Ainat [17]

Answer:

x = 1/6

Step-by-step explanation:

hope it helps.

x= 1/6

6 0
3 years ago
Read 2 more answers
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