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3 years ago

5

You construct a picture frame with a diagonal piece attached to the back for support, as shown below. Can you tell from the dime

nsions whether the corners of the frame are right angles?

1 answer:

andreyandreev [35.5K]3 years ago

6 0

222Answer:

Step-by-step explanation:

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5th grade math. correct answer will be marked brainliest

Gala2k [10]

Answer

c

Step-by-step explanation:

2.72 ÷ 1.54

5 0

3 years ago

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The ages of two brothers are in the ratio two to three, but in eight years, the ratio of their ages will be three to four. What

Darina [25.2K]

X = older brother
y = younger brother

Equation 1: x/y = 2/3 ⇒ x = 2y/3
Equation 2: x + 8/y + 8 = 3/4

$( \frac{2y}{3} + 8) / y +8 = \frac{3}{4}$
$(2y + 24)/3 = y + 8 = \frac{3}{4}$
$2y + 24 = 3 (y + 8) = \frac{3}{4}$
$2y + 24 = 3y + 24 = \frac{3}{4}$
$4 (2y + 24) = 3 (3y + 24)$
$8y + 96 = 9y + 72$
$y = 24$

The age of the older brother is 24.

$x = \frac{2y}{3} = \frac{2*24}{3}$
$x = \frac{48}{3}$
$x = 16$

The age of the youngest brother is 16.

5 0

4 years ago

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A model of a car is 4 inches long. If the actual car is 8 feet long, find the scale of the model. a. 4 in = 2 ft c. 8 in = 4 ft

Romashka-Z-Leto [24]

Answer:

1 inch = 2ft

Step-by-step explanation:

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4 years ago

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HELP I NEED HELP ASAP

victus00 [196]

Answer: (5, -2)

Step-by-step explanation:

$y= x-7\\2x+y=8$

Substitute x-7 for y in 2nd equation

$2x+ x-7 =8\\3x-7=8\\3x = 15\\x=5$

Solve for y

$y=5-7\\y=-2$

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3 years ago

Point A (-2,-10) is reflected over the x-axis. Write the coordinates of A'. * (2.-10) O (2.10) O (-2,-10) (-2, 10) Send me a cop

Nady [450]

Answer:

(2, -10)

Explanation:

Reflection over the x-axis puts a negative sign on the x value.

4 0

4 years ago