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3 years ago

The ratio of melanie allowance to Jacob allowance is 4.1 to 20.5. If Jacob gets $5.00, how much allowance dose Melanie get

Mathematics

1 answer:

yaroslaw [1]3 years ago

7 0

Answer:

Step-by-step explanation:

To get melanie's allowance, we cross multiply

4.1/20.5 = x/5 and then solve for x

x=(5*4.1)20.5 = 1

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Carl works at a garment factory and sews buttons on shirts. For each shirt he completes that passes inspection, he earns $2. How

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do 2*52 which gives you 104 so 104 dollars

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4 years ago

Daca a+b=82 si a:b=9,r2 afla a si b

MArishka [77]

A+b=82
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3 years ago

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Carmen cuts a 60-inch-long wire into pieces that are 3/4 inch long.How many pieces does she have?

miskamm [114]

Since we have to divide 60 by ¾, so get 60/ ¾ =60* 4/3 = 80

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3 years ago

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The coordinate plane has the following points A=(2, 1), B=(5, 1), C=(7,2), and 1 point

dusya [7]

Answer:

Step-by-step explanation:

Coordinate Plane

The image provided shows the four points given:

A=(2, 1), B=(5, 1), C=(7,2), D=(4,2).

It can be clearly seen the length of CD is just the difference of their x-coordinates:

CD = 7 - 4 = 3

We can also use the formula of the distance.

Given two points C(x,y) and D(w,z), the distance between them is:

$d=\sqrt{(z-y)^2+(w-x)^2}$

$d=\sqrt{(2-2)^2+(7-4)^2}$

$d=\sqrt{0^2+3^2}$

$d=\sqrt{9}$

d = 3

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3 years ago

The Length of a standard jewel case is 7cm more than its width. The area of the rectangular top of the case is 408cm. Find the l

salantis [7]

Answer:

The length of the case is 24 cm and its width is 17cm.

Step-by-step explanation:

The Length of a standard jewel case is 7cm more than its width.

Let the length be represented by L and the width be represented by W, this means that:

L = 7 + W

The area of the rectangular top of the case is 408cm². The area od a rectangle is given as:

A = L * W

Since L = 7 + W:

A = (7 + W) * W = 7W + W²

The area is 408 cm², hence:

408 = 7W + W²

Solving this as a quadratic equation:

=> W² + 7W - 408 = 0

W² + 24W - 17W - 408 = 0

W(W + 24) - 17(W + 24) = 0

(W - 17) (W + 24) = 0

=> W = 17cm or -24 cm

Since width cannot be negative, the width of the case is 17 cm.

Hence, the length, L, is:

L = 7 + 17 = 24cm.

The length of the case is 24 cm and its width is 17cm.

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4 years ago