Tia cut 4-meter 8-centimeter wire into 10 equal pieces. Marta cut a 540-centimeter wire into 9 equal pieces.How much longer is one of Martha's wires than one of Tina's?

Answers

Answer 1

Answer: 19.2 centimeters

Explanation: Convert 4m 8cm into cm so it is 408cm. Divide 408 by 10 and you get 40.8cm. Then divide 540 by 9 and you get 60cm. 40.8 and 60 are the measurements of each piece of wire. Subtract 40.8cm from 60cm to get 19.2cm which is the answer.

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WOULD YOU RATHER use a coupon for $20 off 10of your order OR use a coupon for 20% off of your order?Use mathematics to justify your answer.

Answers

Answer:

Well it would depend on the price

Step-by-step explanation:

if it was for $100 item , these are the same but, if its more, the 20% will be higher off the bigger the price

so I would much rather have 20% off for and item more than 100 dollars and prefer 20$ off to something under a $100

In a factory there are three polishing machines, A, b, and C. when all three of them are working, 5700 lenses can be polished in one week. When only A and B are working, 3400 lenses can be polished in one week. When only B and c are working, 4200 lenses can be polished in one week. How many lenses can be polished in a week by each machine?

Answers

It would be answer B

What is the perimeter, to the nearest hundredth of a unit, of polygon
ABCDE ?

Answers

Step-by-step explanation:

answer is 20.31

I'm positive

Bianca and Meredith are sisters. Meredith's height is 23 of Bianca's height plus 32 inches. Meredith is 60 inches tall. A girl is sixty inches tall. Write an equation to find Bianca's height, x, in inches.

Answers

Answer:

Bianca's height = 42 inches

Step-by-step explanation:

Let x be the Bianca height.

Given:

Meredith height = 60 inches

We need to find the Bianca height.

Solution:

From the given statement the Meredith's height is $(2)/(3)$ of Bianca's height plus 32 inches, so the equation is.

Meredith's height = $(2)/(3)(Bianca\ height)+32$

Substitute Meredith's height in above equation.

$60=(2)/(3)x+32$

Now we solve the above equation for x.

$(2)/(3)x=60-32$

$(2)/(3)x=28$

By cross multiplication.

$x=(3* 28)/(2)$

28 divided by 2.

$x= 3* 14$

$x=42\ in$

Therefore, the height of the Bianca is 42 inches.

Luis skates 2/3 mile from his home to school. isabella skates 2/4 mile to get to school. who skates farther?

Answers

Luis. 2/3 as a decimal is 0.66666666 (you get the point) and 2/4 as a decimal is 0.5.
0.666 > 0.5, therefore, Luis skates further.

Answer:

Step-by-step explanation:

Rachel is using grouping to find the factors of a quadratic expression. She has reached the step shown below. Determine the factored form and the standard form of the quadratic polynomial. Factored form: (3x - 4)(x + 2) Standard form: 3x2 + 2x - 8 Factored form: (3x + 2)(x + 4) Standard form: 3x2 + 2x + 8 Factored form: (3x - 2)(x - 4) Standard form: 3x2 - 2x - 8 Factored form: (3x + 4)(x - 2) Standard form: 3x2 - 2x + 8 Reset Submit Rewriting Expressions: P Unanswered