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3 years ago

Tell whether each expressions in each pair are equivalent 8 + 6 + b and 8 + 6b

Mathematics

1 answer:

brilliants [131]3 years ago

7 0

They are equivalent because when u add 6+b you get 6b

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D) If C.P. - Rs 100, S.P. Rs 80, then loss percent

AfilCa [17]

Step-by-step explanation:

Selling price = Rs.80

Cost price = Rs.100

here, CP > SP

Now...

Loss ( L ) = CP - SP

= RS.100 - 80

= Rs.20

Now...

$loss \: percent \: = \frac{loss}{CP} \times 100%$

$= \frac{2000}{100} \\$

= 20 %

3 0

3 years ago

The two cheese questions please!!

Reil [10]

Answer:

Ham costs: $8.249 repeating

Overall cost: 1.26 repeating

Step-by-step explanation:

$4.95 x 5/3= 8.249

2/3 + 3/5= (2 x 5) + (3 x 3)/ 3 x 5=

19/ 15 or 1 4/15

15 divided by 19= 1.26 repeating

6 0

3 years ago

Read 2 more answers

An acute angle theta is in a right triangle with cos theta = 5/6. What is the value of sec theta?

pochemuha

Answer:

sec=1/cos

Step-by-step explanation:6/5

5 0

3 years ago

Karen has $1.70 in coins. Karen has 8 coins, all of which are quarters or dimes.

kumpel [21]

x+y=8 and 25x+10y=170 are the linear equations.

x+y≤8 and 25x+10y≤170 are the inequalities.

Step-by-step explanation:

Given,

Worth of coins = $1.70 = 1.70*100 = 170 cents

Number of coins = 8

1 quarter = 25 cents

1 dime = 10 cents

Let,

x represent the number of quarters

y represent the number of dimes

1. Write an equation to represent the amount of coins Karen has.

x+y = 8

2.Write an equation to represent the value of the coins Karen has.

25x+10y=170

x+y=8 and 25x+10y=170 are the linear equations.

For inequalities, the amount cannot increase number of coins and worth but it can be less, therefore,

x+y≤8

25x+10y≤170

x+y≤8 and 25x+10y≤170 are the inequalities.

Keywords: linear equations, addition

Learn more about linear equations at:

#LearnwithBrainly

4 0

4 years ago

Ari’s teacher says he may have his report grade based on either the mean or the median of his last six test scores.

stepan [7]

To find the mean you: <span>add up all the numbers, then divide by how many numbers there are. So the mean for these numbers would be: 84%

To find the median: You put the numbers in order (From least to greatest), and then find the number exactly in the middle. Here it is an even amount of numbers. No problem, just add the two numbers in the middle and then divide by 2. The answer here is: 84%

</span>

6 0

4 years ago

Read 2 more answers