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2 years ago

Evaluate the expression when x=-2 and y=3. -y+8x 0 Х 5 ?

Mathematics

1 answer:

FromTheMoon [43]2 years ago

8 0

Answer:

Step-by-step explanation:

First here is the problem

-y + 8x

nwo that u have the problem substitute the variables with numbers...see example

-3 + (8) (-2)

Then Order of operations do the multiplication...so see example below

-3 + (16) Its negative -16 because a positive and negative when multiplied is negative

Now -3 + 16 = 13

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What is the product? One-eighth times three-elevenths 3 over 88 1 over 22 4 over 19 35 over 88

kipiarov [429]

Answer:

$\frac{3}{88}$

Step-by-step explanation:

Given

One-eighth times three-elevenths

Required

Solve

One-eighth means 1/8

Three-elevenths means 3/11

So, mathematically; the above expression is represented as thus:

$\frac{1}{8} * \frac{3}{11}$

To solve this, we simply multiply the numerator and the denominator together.

After multiplying these together, the next is to check if the resulting can be simplified

If yes,we simplify it and if otherwise, we live it like that.

So,

$\frac{1}{8} * \frac{3}{11}$

$=\frac{1 * 3}{8 * 11}$

$= \frac{3}{88}$

At this point, the fraction can't be simplified any further.

Hence,

$\frac{1}{8} * \frac{3}{11} = \frac{3}{88}$

3 0

2 years ago

A pharmaceutical company sells bottles of 500 calcium tablets in two dosages: 250 milligram and 500 milligram. Last month, the c

Svetach [21]

X = 250 mg tabs
y = 500 mg tabs

2200x + 1800y = 39200....multiply by -1
2200x + 2200y = 44000
--------------------------------
-2200x - 1800y = - 39200 (result of multiplying by -1)
2200x + 2200y = 44000
--------------------------------add
400y = 4800
y = 4800/400
y = 12...... the 500 mg tabs (y) costs $ 12 per bottle

2200x + 2200y = 44000
2200x + 2200(12) = 44000
2200x + 26400 = 44000
2200x = 44000 - 26400
2200x = 17600
x = 17600/2200
x = 8 <== the 250 mg tabs (x) costs $ 8 per bottle

3 0

2 years ago

Read 2 more answers

1. a baker had 10 sacks containing the following amounts of flour: 4 1/2 kg , 31/4 kg ,2 1/2 kg ,2 1/2 kg , 4 kg ,3 1/4 kg ,4 1/

OleMash [197]

Baker's Flour in kg Y x x A x x X x x x x x x I ----------------------------------------------------------- S 2 1/2 3 1/4 4 4 1/4 4 1/2 5 X axis It would be 3.5 in each bag after the baker redistributes the flour. This is because the total flour would be 35 kg. 35 divided by 10 is 3.5 kg of flour in each bag.

3 0

3 years ago

What is 67 multiplyed by 55 ?

Brilliant_brown [7]

Hi there! :)

Step-by-step explanation:

Multiply- it's going to be product. It can also multiply by the numbers, fractions, decimals, factors, and multiples.

First, multiply by the numbers.

$67*55=3685$