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4 years ago

Find the sum 2 2/3 + 1 3/5=

Mathematics

1 answer:

Schach [20]4 years ago

7 0

2 2/3 + 1 3/5
= 2 10/15 + 1 9/15
= 3 19/15
= 4 4/15

answer is 4 4/15 (4 and 4/15)

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B is the midpoint of AC and E is the midpoint of BD. If A (-9, -4), C (-1,6) and E (-4, 3), find the coordinates of D

Anettt [7]

The coordinates of D are (-3, -7)

First we need to find the coordinates of B. In order to do that we simply take the average of the two points that make up the segment for which it is the midpoint (A and C).

Average of x's

-9 + -1 = -10/2 = -5

Average of y's

-4 + 6 = 2/2 = 1

Therefore, the coordinates of B are (-5, 1).

Now we can find D by noting the E will be the average of B and D. So we can use the average equation to determine the values of D.

Average of x's

(B + D)/2 = E

(-5 + D)/2 = -4

-5 + D = -8

D = -3

Average of y's

(B + D)/2 = E

(1 + D)/2 = -3

1 + D = -6

D = -7

Now we know the coordinates of D to be (-3, -7)

7 0

4 years ago

Target sells AAA batteries for $1.10 and AA batteries for $0.50. They sold 350 total batteries earning a total of $560. How many

satela [25.4K]

Answer:

This is not possible because the selling of number of AA batteries cannot be negative.

Step-by-step explanation:

Let us assume that the number of AAA batteries sells be x .

Let us assume that the number of AA batteries sells be y.

As given

Target sells AAA batteries for $1.10 and AA batteries for $0.50. They sold 350 total batteries earning a total of $560.

Equations becomes

x + y = 350

1.10x + 0.50y = 560

Simplify the above equation

$\frac{110x}{100} + \frac{50y}{100} = 560$

110x + 50y = 56000

Two equations becomes

x + y = 350

110x + 50y = 56000

Multiply x + y = 350 by 50 and subtracted from 110x + 50y = 56000 .

110x - 50x + 50y - 50y = 56000 - 17500

60x = 38500

$x = \frac{38500}{60}$

x = 641 .6 (Approx)

Put this value in the equation x + y = 350 .

641.6 + y = 350

y = 350 - 641.6

y = -291.6

This is not possible because the selling of number of AA batteries cannot be negative.

3 0

3 years ago

Which MATH is a parallelogram. A. 3 B. 4 C. 7 D. 12

joja [24]

A parallelogram have 4 sides

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3 years ago

The quote for USD/CHF is listed as 1.4481/88 as shown. How many Swiss francs does it cost to buy 1 U.S. dollar?

ozzi

1.4488: I hope this helps. :)

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3 years ago

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The segment joining the two legs of a trapezoid is called

mel-nik [20]

Answer:

Base

Step-by-step explanation:

The segment joining the two legs of a trapezoid is called base

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3 years ago

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