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3 years ago

The two rectangles below have the same height-to-width ratio. What is the

Mathematics

1 answer:

shepuryov [24]3 years ago

8 0

Answer:

B. 16.19

Step-by-step explanation:

We have given height to width ratio of two similar rectangles

Hence, we solve using Proportionality

Height a/Width a = Height b/Width b

21/34 = 10/w

Cross Multiply

21 × w = 34 × 10

w = 34 × 10/21

w = 16.19047619

Approximately to decimal places = 16.19

Option B is correct

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Can someone please take there time to do this every time I asked it’s wrong

prisoha [69]

Answer:

5/3x - y = 5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Slope-Intercept Form: y = mx + b

m - slope

b - y-intercept

Standard Form: Ax + By = C

Step-by-step explanation:

Step 1: Define

Find points from graph.

x-int (3, 0)

y-int (0, -5)

Step 2: Find slope m

Substitute: $m=\frac{-5-0}{0-3}$
Subtract: $m=\frac{-5}{-3}$
Simplify: $m=\frac{5}{3}$

Step 3: Write Slope-Intercept Form

y = 5/3x - 5

Step 4: Find Standard Form

Subtract 5/3x on both sides: -5/3x + y = -5
Multiply both sides by -1: 5/3x - y = 5

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3 years ago

Suppose your walking rate is 4 feet per second. write that in miles per hour

9966 [12]

4 ft/sec X 3600 sec/hour = 14400 ft/hour

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4 years ago

A store is having a sale on jelly beans and trail mix. For 6 pounds of jelly beans and 2 pounds of trail mix, the total cost is

Aneli [31]

Answer:

Jelly Bean price per pound = $3.25, Trail Mix price per pound = $1.25

Step-by-step explanation:

Let jb = price per pound of jelly beans

Let tm = price per pound of trail mix

equation 1 -> 6*jb + 2*tm = 22

equation 2 -> 3*jb + 5*tm = 16

simplify equation 1

6*jb + 2tm = 22

2*tm = 22 - 6*jb

divide by 2

tm = 11 - 3*jb

plug this into equation 2

3*jb + 5*tm = 16

3*jb + 5*(11-3*jb) = 16

3*jb + 55 - 15*jb = 16

-12*jb + 55 = 16

-12*jb = 16 - 55

-12*jb = -39

jb = -39/-12

jb = 3.25

then, plug the cost per pound of jelly beans back into the simplified equation 1

tm = 11 - 3*jb

tm = 11 - 3*3.25

tm = 1.25

3 0

3 years ago