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3 years ago

Help help help help help

Mathematics

1 answer:

Ede4ka [16]3 years ago

5 0

$V_1 = 2*10*6 = 120\\V_2 = 6*2*(8-2) = 6 * 2 * 6 = 72\\V = V_1 + V_2 = 120 + 72 = 192$

Answer: 192 cm³.

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PLZZZZ HELP 100 PTS Create a conditional and its converse where the conditional is true but the converse is false

prohojiy [21]

Answer:

I think this would work: "If it rains, then it is wet." The converse is false.

6 0

2 years ago

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A small school had 60% boys and the rest are girls if the number of boys is 48 what is the total number of boys and girls all to

Flura [38]

Hey there!

When dealing with percent word problems, the word "is" means equals. Let's see what we can do with your problem.

If the small school had 60% boys, it will have 40% girls. The number of boys is 48, which should equal 60% of the total, which we can model below, with t representing the total number of kids. In decimal form, 60% is 0.6.

0.6t=48

We divide both sides by 0.6.

t=80

Therefore, there are 80 total kids at the school.

We can also check our answer below.

BOYS: 0.6(80)= 48

GIRLS: 0.4(80)=32

48+32=80

I hope that this helps!

5 0

3 years ago

Perform the indicated operation. 9/32 - 1/16

Mashcka [7]

First find a common denominator

1/16(2/2) = 2/32

9/32 - 2/32 = 7/32

7/32 is your answer

hope this helps

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3 years ago

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Write a system of equations to describe the situation below, solve using any method, and Fill in the blanks.

Tatiana [17]

Answer:

1 haircut = 47 dollars

1 colouring = 98 dollars

Step-by-step explanation:

Let $x$ be equal to the cost of 1 haircut.

Let $y$ be equal to the cost of 1 colouring treatment.

1) Form equations

Equation 1: 3 haircuts + 1 colour = 239 dollars

⇒ $3x+y=239$

Equation 2: 2 haircuts + 1 colour = 192 dollars

⇒ $2x+y=192$

2) Solve the system of equations

Subtract equation 2 from equation 1 to cancel out y (elimination)

- $3x+y=239\\2x+y=192$

⇒ $3x-2x+y-y=239-192\\x=47$

Therefore, Natalie charges 47 dollars for 1 haircut.

Plug x back into one of the equations to solve for y

$2(47)+y=192\\94+y=192$

Subtract both sides by 94

$94+y-94=192-94\\y=98$

Therefore, Natalie charges 98 dollars for 1 colouring treatment.

I hope this helps!

4 0

3 years ago

What is the conditional frequency of a student who rides the bus being late to class first period?

Novosadov [1.4K]

Answer:

1/5

Step-by-step explanation:

The Constraint is ; those who rode the bus, hence it is conditional because we aren't focused on students, only students who rode the bus.

Now we want the frequency of those who were late Given that they rode the bus : for these we have 3 students

Total number of students who rode the bus , total possible outcome = 15

Hence, the conditional frequency = (number who rode bus and were late / otal number who rode the bus)

Hence, we have ; 3 / 15 = 1 / 5

3 0

3 years ago