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Alinara [238K]
3 years ago
5

A student received a score of 72% on a quiz. There were 25 questions on the quiz, and all the questions were of equal value. How

many questions did the student answer correctly?
Mathematics
2 answers:
Levart [38]3 years ago
8 0

Answer:

they answered 18 questions correctly

Sonbull [250]3 years ago
8 0

Answer:

18

Step-by-step explanation:

18/25=.72

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10. Marcelle uses a total of 6 plates to add 110
madam [21]

Answer:

Marcelle will use 4 plates of the 25 lb & 2 plates of the 5 lb to fabricate the 110 lb weight lifting bar.

Step-by-step explanation:

There are 6 plates which consist of 25 lb plates and 5 lb plates.

We need to figure out how many of each one compose 110 lb.

Thus, 25 x 4 = 100... 4 plates of 25 pounds.

5 x 2 = 10 ... 2 plates of 5 lbs.

100+10= 110, which is our goal! And a total of 6 plates were used!

All things put into great consideration, Marcelle will use 4 plates of the 25 lb & 2 plates of the 5 lb to fabricate the 110 lb weight lifting bar.

I hope this helped!

~ Penny

5 0
3 years ago
Which equation represents the relationship between the x-and y-values shown in the table.
Dmitrij [34]

C. y = 3x - 4

Step-by-step explanation:

Given coordinates:

(2, 2), (3, 5), (5, 11), (7, 17)

The equation of any straight line is

y = mx + c

Where

m = Gradient

c = Constant

Gradient = y2 - y1/x2 - x1

Substitute any two values of y with the respective values of x.

Gradient = 17 - 2/7 - 2

= 15/5

= 3

Substitute the gradient into the general formula.

y = 3x + c

Substitute any value of the coordinate to the equation

2 = 3(2) + c

2 = 6 + c

c = -4

From y = mx + c,

substitute the values of m, the gradient, and c, the constant.

y = (3)x + (-4)

y = 3x - 4

5 0
3 years ago
Which expression represents how many years are in X months
Scilla [17]

Answer:

12 months is one year so the expression is:

Step-by-step explanation:

2year = 2(X)

so you know one year 12 months you can put 12 on the x value

2 years = 2(12)

2 years = 24 months

4 0
3 years ago
What is the height of a solid box that has a mass of 438 g, a destiny of 2.17 g/cm, a length of 40 cm, and a width of 20 cm.​
lapo4ka [179]
  • <em>Answer:</em>

<em>h ≈ 0.25 cm</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there !</em>

  • <u><em>density formula</em></u>

<em>d = m/V</em>

<em>V = l×w×h</em>

<em>replace</em>

<em>2.17 = 438/(40×20)×h</em>

<em>2.17 = 438/800×h</em>

<em>2.17×800×h = 438</em>

<em>1736h = 438</em>

<em>h = 438/1736</em>

<em>h ≈ 0,25 cm</em>

<em>Good luck !</em>

<em />

4 0
3 years ago
What is 145,324-200,504 and how did you get the answer
goldenfox [79]
I got -55,180. To get that answer you need to subtract them. I hope this helps!!!
5 0
3 years ago
Read 2 more answers
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