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inn [45]
3 years ago
5

Craig grades 9 test every 22 minutes if craig has 63 test to grade how long will it take him

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
8 0
The answer would be 156 min or 2h and 32 min, the way you would find it is by dividing 63 by 9 and that would get you 7, then you multiply 7 by 22 resulting in 156, then you would simplify it down to 2hours and 32 minutes.


egoroff_w [7]3 years ago
8 0
Your answer would be 2hrs 32 mins
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A civil engineer is designing a public parking lot for the new town hall. The number of cars in each row should be six less than
Alexandra [31]
The new parking lot must hold twice as many cars as the previous parking lot. The previous parking lot could hold 56 cars. So this means the new parking lot must hold 2 x 56 = 112 cars

Let y represent the number of cars in each row, and x be the number of total rows in the parking lot. Since the number of cars in each row must be 6 less than the number of rows, we can write the equation as:

y = x - 6             (1)

The product of cars in each row and the number of rows will give the total number of cars. So we can write the equation as:

xy = 112           (2)

Using the above two equations, the civil engineer can find the number of rows he should include in the new parking lot.

Using the value of y from equation 1 to 2, we get:

x(x - 6) = 112       (3)

This equation is only in terms of x, i.e. the number of rows and can be directly solved to find the number of rows that must in new parking lot.
6 0
3 years ago
Of 250 student 175 of them walk what is the percent of the student that don't walk
Allushta [10]
It is 70% Because:

250/100 + 175/x

Proportions


6 0
3 years ago
Read 2 more answers
Which equation could be used to find the value of x in the triangle below?
valkas [14]

Answer:

  • 4x - 12 = 180

Step-by-step explanation:

<u>Sum of the angles of triangle equals 180</u>

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<u>Simplified</u>

  • 4x - 12 = 180
5 0
3 years ago
A bag of candy has a mass of 80 g. A chocolate bar has a mass of 110 g. What is the total mass of the bag of candy and the choco
atroni [7]

total mass = mass of a bag of candy + mass of a chocolate bar

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3 0
2 years ago
Y = –x + 4
aliina [53]
Y = -x + 4.....so sub in -x + 4 in for y in the other equation

x + 2y = -8
x + 2(-x + 4) = -8
x - 2x + 8 = -8
x - 2x = -8 - 8
-x = -16
x = 16

y = -x + 4
y = -16 + 4
y = - 12

one solution (16,-12)
8 0
3 years ago
Read 2 more answers
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