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2 years ago

What are three equivalent ratios for 3 : 3 1/2

Mathematics

1 answer:

jolli1 [7]2 years ago

7 0

Answer:

6 : 7
9 : 10 1/2
12 : 14

Step-by-step explanation:

Multiply the given values by any number you like. The results will be integers if the number is even.

×2 gives 3×2 : (3 1/2)×2 = 6 : 7

×3 gives 3×3 : (3 1/2)×3 = 9 : 10 1/2

×4 gives 3×4 : (3 1/2)×4 = 12 : 14

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Log10 (x squared - 4x + 7) = 2

kozerog [31]

Log_(10)(x² - 4x + 7) = 2

Take the base 10 anti log of both sides.
x² - 4x + 7 = 10² = 100
x²- 4x - 93 = 0

Quadratic Formula
x = [4 ± √(4²-4(1)(-93))]/[2(1)] = [4 ± 2√97)]/2 = 2 ± √97

6 0

2 years ago

Eddie's Evergreens sells Christmas trees and wreaths. Trees cost 3 dollars more than 4 times the price of each wreath. It costs

kari74 [83]

Answer:

$W = 16$

$T = 67$

Step-by-step explanation:

Represent trees with T and wreaths with W

Given

$T = 3 + 4 * W$

$2 * W + T = 99$

Solving (a): Cost of W

Substitute 3 + 4 * W for T in the second equation

$2*W + 3 + 4 * W = 99$

$2W + 3 + 4 W = 99$

Collect Like Terms

$2W + 4 W = 99 - 3$

$6W = 96$

Divide through by 6

$W =\frac{96}{6}$

$W = 16$

Hence, each wreath costs $16

Solving (b): Cost of T

$T = 3 + 4 * W$

Substitute 16 for W

$T = 3 + 4 * 16$

$T = 3 + 64$

$T = 67$

Hence, each tree costs $67

3 0

2 years ago

Use proportion to find the whole 75 is 15% of what number

Iteru [2.4K]

Answer:

500

Step-by-step explanation:

15% * x = 75

(15/100) * x = 75 Multiply both sides by 100/15

(15/100)*(100/15) = 75 * 100/15

x = 7500/15

x = 500

Answer 500

Proportion

15/100 = 75 / x Cross multiply

15x = 100*75 Combine the right

15x = 7500 Divide 15

15x/15 = 7500/15

x = 500

3 0

2 years ago

Read 2 more answers

Ted has a shelf that is 75/4 inches wide. How many books can Ted arrange on the shelf if each book is 5/4 inches thick?

Paladinen [302]

(75/4) / (5/4) =
75/4 * 4/5 =
300/20 =
15 books

6 0

2 years ago

3x+2y=4 8x+5y=9 Please solve using Cross multiplication method.

ch4aika [34]

Hello, Please refer the photo attachment for your question's answer. The final answer is :-

x= -2, y= 5

Hope it helps you...

Answered by Benjemin

3 0

2 years ago