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Rina8888 [55]
3 years ago
5

What is $2.50 times 7?

Mathematics
1 answer:
Sliva [168]3 years ago
6 0
2.5*7 = 17.5. If it's easier for you, multiply 2.5 by 5 then add 2.5*2.
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30 points plz help me lo links
katen-ka-za [31]

Answer:

(-1/3, 3/4)

Step-by-step explanation:

9x + 8y = 3

6x - 12y = -11

Let's solve the system by eliminating x. We need the coefficients of x to be additive inverses, so they will add to zero eliminating x. The LCM of 9 and 6 is 18. Let's multiply both sides of the first by 2 and both sides of the second equation by -3.

18x + 16y = 6

-18x + 36y = 33

The coefficients of x are 18 and -18, which add to zero. Now we add these two equations.

52y = 39

y = 39/52

y = 3/4

Now we substitute y with 3/4 in the first equation and solve for x.

9x + 8y = 3

9x + 8(3/4) = 3

9x + 6 = 3

9x = -3

x = -3/9

x = -1/3

Solution: (-1/3, 3/4)

4 0
2 years ago
Can someone help me please
MrMuchimi

Answer:

is it from a textbook

Step-by-step explanation:

7 0
2 years ago
Solve for x: 3x−8≤23 OR −4x+26≥6
love history [14]

Answer:

Step-by-step explanation:

3x-8<=23

3x<=23+8

3x< =31

X<Or = 10.3

-4x+26>=6

-4x>=-20

X>=5

7 0
3 years ago
Read 2 more answers
Use the correct order of operation to solve the following problem 3x (50 - 6^2) ÷ 2 =
Effectus [21]

Answer: 21

Step-by-step explanation:

Ok so first of all the numbers in the parentheses go first.

So 6 to the power of 2 (6^2) would be 6x6 which equals 36

50-36=14

After that you just keep rewriting the problem after every step.

Since the 3 is outside of the parentheses, you would multiply it with the 14

3x14=42

Finally 42÷ 2=21

3x (50 - 6^2) ÷ 2 =

        3(14)÷ 2

           42÷ 2= <u><em>21</em></u>

<u><em></em></u>

<u><em></em></u>

<u><em>Hope this helps (:</em></u>

<u><em>Btw sorry if it's a bit confusing but the answer is 21</em></u>

6 0
2 years ago
The shirt was doubly marked down! There was a 25% off sale, and then an additional 10% off of that. After the mark downs, the pr
Blizzard [7]

Answer:

40.5

Step-by-step explanation:

i multiplied 30 with .25 which was 7.5

then i multiplied 30 with .1 which was 3

add those together 10.5

add that too 30 which is 40.5

5 0
2 years ago
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