Yolanda is buying supplies for school. She buys n package of pencils at $1.40 per package and m pads of paper at $1.20 each. What does each term in the expression 1.4n+1.2m represent? What does the entire expression represent?

Answers

Answer 1

Answer: 1.4n represents the price and number of packages of pencils. 1.2m represents the number of paper pads and the price

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Uhh help lol
5.3x + y = 28.5
4.2x + 3.1y = 27.2
find x and y

Answers

Answer:

x = 5, y = 2

Step-by-step explanation:

First, isolate y in the top equation.

$y = -5.3x+28.5$

Next, substitute y in the bottom equation.

$4.2x + 3.1(-5.3x + 28.5) = 27.2$

$5.3x + y = 28.5$

Simplify.

$4.2x + -16.43x + 88.35 = 27.2$

Combine like terms.

$-12.23x + 88.35 = 27.2$

Isolate x on one side.

$-12.23x = -61.15$

Isolate x.

$x = 5$

Substitute x into $5.3x + y = 28.5$

$5.3(5) + y = 28.5$

Simplify.

$26.5 + y = 28.5$

Isolate y.

$y = 2$

$x = 5 \ny = 2$

C. 59 x 5 - 25 x 5-30

Answers

Answer: 140

Step-by-step explanation:

First we do all the multiplication parts due to BODMAS. This will now become:

==> 295 - 125 - 30 = 140

Answer:

1320

Step-by-step explanation:

59x5=295

295-25=270

270x5=1350

1350-30=1320

A cone has a base radius of 2 millimeters and a height of 24 millimeters.What is the volume of the cone?

A.
16π mm3

B.
384π mm3

C.
96π mm3 <-----

D.
32π mm3

Answers

The answer is D. 32? mm3. The volume of the cone is: V = 1/3 * π * r^2 * h, where r is the radius and h is the height. We know that: r = 2 mm and h = 24 mm. Therefore, the volume of the cone is: V = 1/3 * π * r^2 * h = 1/3 * π * 2^2 * 24 = 1/3 * π * 4 * 24 = 1/3 * π * 96 = 32 π mm^3.

If the edges of a cube add up to 4 feet in length, what is the volume of the cube?

Answers

4ft=48 inches and there are 12 edges on a cube, so each edge is 4 inches. And the volume is 64 cubic inches.

For the first 500 minutes used each month, the customer is charged a flat rate of $50. These 500 minutes are "included" in their monthly plan.For any additional minutes used, the customer is charged an additional $.10 per minute.
Is it linear

Answers

yes. goes up 10 constantly

What was Miguel's mistake if any?

Answers

Answer:

Step-by-step explanation:

According to my answer, he shound have computed 2^3 which is 8 and suibstract that from four getting four, then multiplying it by tow to get eight so it should be 4 so Miguel made no mistakes.Since he was doing the order of operations for each step of the equation.

Answer:

C. Miguel incorrectly multiplied before dividing in step 3.

Step-by-step explanation:

32 ÷ 2(2³ - 4)

Solving parenthesis and exponent.

32 ÷ 2(8 - 4)

32 ÷ 2(4)

The division is first, then multiplication.

32/2 (4)

16(4)

= 64

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