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3 years ago

What number is 40% of 90

Mathematics

1 answer:

mr_godi [17]3 years ago

3 0

Answer:

Step-by-step explanation:

Set up as proportion 40/100 = x/90

Cross multiply 3600 = 100x

DIvide by 100

x = 36

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Separating the balloons into five equal groups

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3 years ago

How to show the ratio 3:8 is equal to 12:32

Agata [3.3K]

12:32 is simply 3:8 but divided by 4 to both sides.

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3 years ago

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Please I need help with this I don't understand my teacher gave us a valentines day assignment like what the heck I seriously do

Helen [10]

Answer:

A) 5x = y

B) $2x \leq 100$

Step-by-step explanation:

A is 5x = y because there are 5 pink hearts per the number of boxes (x) bought.

B uses the equation 2x is less than or equal to 100 because the teacher is spending 2 dollars per kid and can spend a maximum of 100.

The graph for this is attached.

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3 years ago

A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20° above the horizontal. How far does the ju

weeeeeb [17]

Answer:

x = 9.5 m

Step-by-step explanation:

Given:

This problem is based on 2D motion kinematics equations:

$V_0 = 12 m/s$

$\theta = 20^0$

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At maximum height:

$V_y = 0$

Components of initial velocity:

$V_0x = V_0 cos (\theta) =(12 )(cos (20^0)) = 11.3 m/s$

$V_0x = V_0 sin (\theta) = (12)(sin (20^0)) = 4.10 m/s$

To find time to reach maximum height:

$V_y = V_0y -gt$

Plugging in the known values:

0 = 4.10 - 9.8t

$t = \frac{-4.10}{-9.8}$

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3 years ago

Cody and Brad bought pizza for the class party. Cody bought 12 pizzas for $15 each.

tankabanditka [31]

Answer:

brad paid more

Step-by-step explanation:

15/12=1.25

and 12/8=1.50

so brad paid more on pizza

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2 years ago

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