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scoray [572]
3 years ago
5

Margie calculated that she would spend $175 on school supplies this year. She actually spent $97.50 on school supplies. What is

Margie’s percent of error?
77.3%
79.5%
44.2%
4.4%
(IF Someone can explain why that would be gr8)
Mathematics
2 answers:
Anna007 [38]3 years ago
8 0
Error=100 calculated/actual

error=100 (175-97.5) / 97.5

error=100 (77.5) / 97.5

error=7750 / 97.5

error=77500 / 975

error=3100 / 39

error=79.5% <-- Estimated
Juliette [100K]3 years ago
6 0

Yeah I agree with him I STG I tried to divide first, and then I came to Brainly to make sure. In other words, if there is another question like this, divide the first number in the problem (in this case 175) by the second number in the problem (in this case 97.50) and it did say "1.7948)". Ignore the "1." and just focus on the four numbers after that. So 79 is an answer. Then focus on the two number after (in this case the two numbers after 79) which is 48 in this case. Round this number to the nearest tenth, and there is your answer.

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Can someone plz help me
Goshia [24]

Answer:

Your table might look something like this:

The dads steps:

3

6

9

12

15

18

Sons steps:

5

10

15

20

25

30

You can notice the pattern. If dad walks 3 steps, son walks 5. If dad walks another 3, son walks another 5. And so on. This means dad walks 12 steps when the sin walks 20 steps.

Step-by-step explanation:

The ratio is 3:5. This means dad wlaks 3 steps so son must walk 5 steps basically. So.......... You can now create the table. Y I just have to multiply or divide each side ( of the colon:) so. Whatever you do to one side, you do to the other side. If you x3 on one side, you do it to other. Same goes for division. In the 'table' I did above, I x2 to get 6 and 10. Then I took the 3 and the 5 again and timsed those by 3. You can also change the 6 and the 10. So:

3:5

Then x2

6:10

Then I take the top layer (you can either choose to change the top layer, or layer above as long as you do the same thing to each side. Remember, only x and ÷. No + or-.) and I x3

9:15

Then I could take 9 and 15 and x5

45:75

It's crazy that all these. Ratios mena the same thing! 45 steps from dad would take the son 75 steps. You can also divide the last ratio of 45:75 to find the one you started with, 3:5.

So you get the idea.

It is probably best to do what I did in the table in the answer part because I did a pattern. Take the top layer, and x2, then x3, then x4, ect. Rather then doing random things.

5 0
4 years ago
141.1933-67.53 =<br> (Divided, not minus)
Sphinxa [80]

Answer: I think its 2.09

Step-by-step explanation:

But i'm not sure.

5 0
3 years ago
Prove that ax+by+c=0 represent the eqn of straight line
ivann1987 [24]
If we rewrite it as y=mx+d (which can be taken from here from subtracting ax and c from both sides, then dividing b, resulting in y=(-a/b)(x)-c/b. We can then substitute -a/b for m and -c/b for d), if d=0, then we have m as a constant and as we add a specific number to y (that number being m) every time the x value increases by 1, it therefore forms a straight line. If d is not 0, then we simply add d to every single number - this is still a straight line due to that we still add a specific number to y every time x increases by 1 every single time
4 0
3 years ago
Given the piecewise function shown, find the value of h(–6). A) 1 B) 26 C) -23 D) -6
kirza4 [7]

Answer:

-22

Step-by-step explanation:

Which part of the function is valid when x = -6

The first part

h(-6) = 4x+2 and let x = -6

        =4(-6) +2

        = -24 +2

         =-22

5 0
3 years ago
Simplify 4x + 3(5x) + 4y - x =​
nataly862011 [7]

Answer:

= 18x + 4y hope this helps :)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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