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ExtremeBDS [4]
3 years ago
9

6- 4(2r - 5) < 26 - 8r This is algebra

Mathematics
1 answer:
RSB [31]3 years ago
4 0

Answer:

r>1

Step-by-step explanation:

6-4(2r-5)<26-8r do () first

6-8r+20<26-8r subtract 6 from both sides

-8r+20<20-8r Since this is the same on both sides, r>1 to make the equation not come out as 0

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If pennies and dimes come in rolls of 50 coins each, while nickels and quarters come in rolls of 40 coins each, how many dollars
Simora [160]
The answer to your question is:
Pennies = $ 2.50
Nickels = $12
Dimes =$35
Quarters= $80
5 0
4 years ago
I need help on this one
umka2103 [35]
You seem to have gotten m∠2. Remember that ∠1 and ∠2 are alternate interior angles, meaning they're both equal. Since they gave you m∠1 as being 26°, you now know the measure of ∠2.

As for m∠3 and m∠4, If you look at ∠3 you'll see that it is complementary to ∠1 (They both add up to 90°), so if you subtract m∠1 from 90° you'll have found m∠3. You find m∠4 the same way.

Hope this helped.
6 0
3 years ago
Which mathematical statements are true?
valentinak56 [21]
1. incorrect 
odd number multiplied by odd number is still an odd number, 3 being an odd number when multiplied by 3 is 9 which is an odd number

2.incorrect
this states that if 6 is less than 7, which is true, then 4 is greater than 7, which is  incorrect. The 2 statements are not related

3.correct
6 is divisible by 3, 6/3 = 2, this means that 6 can be divided by 3 without giving a remainder.  
10 is a multiple of 2. multiples of 2 in other words are numbers that are divisible by 2. Since 2*5 = 10, its a multiple of 2.

4.Incorrect.
Average of data is the sum of the data values divided by the number of values there are, so the average value cannot be greater than the largest data value.
Also second statement too is wrong, there are some instances when the data values all may be equal e.g.: 45,45,45, then the average of these data are also 45, hence the average cannot always be lesser than the largest data value. Average should be equal to or less than the largest data value.

5. Incorrect
the slope is the rate of change m(gradient) = change in y/change in x. however the y intercept is not the initial value. Intercept is merely the point at which the graph cuts the y axis, not its initial value.

 6.incorrect
sum of the interior angles of a triangle is 180°. since there are 3 equal angles, 180°/3 = 60°. therefore each angle is 60°.
4 0
3 years ago
(-1,6), (7,-10)<br> WhAt is it equal to
just olya [345]

Answer: So what you need to do is simple.

Step-by-step explanation:

You take the numbers and put them into this equation: m=Y2-Y1/X2-X1.

As so: m=-10-6/7--1. Then you take out the negative and the minus and replace it with a plus for the denominator.

The answer will look something like this: -16/8

No simplifying needed.

6 0
4 years ago
Bob paid $25.23 for a couple Sushi Rolls (including tax). He decided to leave a 25% tip. How much did the meal cost all together
Sedbober [7]

Answer:

$31.5375~31.53

Step-by-step explanation:

25.23 divided by 4 is 6.3075

so 25.23 +6.3075=31.5375

7 0
3 years ago
Read 2 more answers
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