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djverab [1.8K]
3 years ago
7

A test has twenty questions worth 100 points. The test consists of True/False questions worth 3 points each and multiple choice

questions worth 11 points each. This system of equations can be used to find how much of each question type he has.
x + y = 20
3x + 11y = 100

"X" represents the number of true/false question and "y" represents the multiple choice questions.
The solution to the system is (15, 5). What is the correct interpretation of this solution.
Mathematics
1 answer:
Lelechka [254]3 years ago
6 0

Answer:

Could you please help me with a math quiz?!?

Step-by-step explanation:

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HELP PLEASEEEEEEEEEEEEEE
vazorg [7]

Answer:

-2/4,  8/40, 21/30, 9, 9 20/25

Step-by-step explanation:

9/20/25 is a bit greater than 9.

21/30 is 9 away from a whole 8/40 is 32 away from 40 -2/4 is way less because its on the negative side which is like so far away from the other numbers.

7 0
3 years ago
A pet toy manufacturer is designing a plastic ball for dogs that will float in water. In order for the ball to float it must hav
algol13

Answer:

3.576 cm

Step-by-step explanation:

radius of ball, r=?

Given:

Density, p = 0.600g/mL

mass, m= 115g

finding volume, v of ball by using formula p=m/v

v= m/p

= 115/0.600

=191.666 mL^3

=191.666 cm^3

Now using formula v= (4/3)πr^3 to find radius, r of the ball

r^3= 3v/4π

   = 3(191.666)/4π

   =45.75 cm

r   =3.5767 cm !

7 0
3 years ago
Please help. Find the two missing sides and write your answer as in simplified radical form.
ki77a [65]

Answer:

x and y =   5√2.

Step-by-step explanation:

This is a 45:45:90 triangle so length of x = length of y.

In this triangle the ratio of the sides is 1:1:√2

Finding length of x and y:

1/√2 = x/10

√2x = 10

x = 10/√2

=  10√2/2

=  5√2.

5 0
3 years ago
Mrs. Carson pays Kristen $48 for babysitting six hours and mr.vanquez pays her $67.50 for babysitting nine hours who pays Kriste
brilliants [131]
Mrs Carson gives the better deal, this is becuase when i set up an inequality 48/6 and 67.50/9, i divided 48 by 2 then added 24 to 48 so i could get them both so i can see what they give, so Mrs Carson gives 72 dollars every 9 hours and thats better than 67.50.
5 0
3 years ago
Denise makes three times as many chocolate cupcakes as vanilla. She makes three dozen strawberry cupcakes. Total cupcakes are 13
san4es73 [151]

Answer:

55

Step-by-step explanation:

6 0
3 years ago
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