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Lesechka [4]
3 years ago
10

Help me!! grade due tonight :(

Mathematics
1 answer:
Grace [21]3 years ago
8 0
It’s c. hope this helps!
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Mika read a 405- page book in 6 hours, how many pages per minute did she read?
barxatty [35]
Divide 405 by 6 which is 67.5
So 67.5 per hour but it wants minutes
So divide 67.5 by 60 (minutes in an hour) and you’ll get 1.125 pages per minute
6 0
3 years ago
Solve the system of equations.<br> - 3x + 2y = 56<br> - 5 - 2y = 24
Oduvanchick [21]

Awnser

y=13

Step-by-step explanation:

-3x+2y=56

-5x-2y=24

so first we want to get rid of one variable, in this example we dont need to multiply because the y's cancel out

so we have

-8x=80

x=-10

now plug in x into an original equation

-3(-10)+2y=56

2y=26

y=13

hope that helps

4 0
3 years ago
Read 2 more answers
The diagonals of a rectangle are always perpendicular.<br><br> A)True<br> B)False
goblinko [34]

Answer:

Step-by-step explanation:

False. If L does not equal W the diagonals are not perpendicular. If L=W then they are perpendicular but that is a square and a special case which is not always true of a rectangle.

4 0
3 years ago
If s(x)=2-x^2 and t(x)=3x, which value is equivalent to (s*t)(-7)?
andreyandreev [35.5K]

Answer:

(s*t)(-7) = 987

Step-by-step explanation:

s(x) = 2 - x²

t(x) = 3x

To find (s*t)(x), multiply s(x) and t(x).

(s*t)(x) = (2 - x²)(3x)

(s*t)(x) = 6x - 3x³

Now that you have (s*t)(x), plug -7 in.

(s*t)(-7) = 6(-7) - 3(-7)³

(s*t)(-7) = 6(-7) - 3(-343)

(s*t)(-7) = -42 + 1029

(s*t)(-7) = 987

5 0
3 years ago
A kangaroo hops 2 kilometers in 3 minutes. At this rate: How far does the kangaroo travel in 2 minutes?
ohaa [14]

Answer:

1.33 km

Step-by-step explanation:

(3 min) (2/3 min) = 2 min

(2 km) (2/3 km) = 1.33 km

8 0
2 years ago
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