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enyata [817]
2 years ago
14

The number of boys in a school is 120% the number of girls at the school. Find the number

Mathematics
1 answer:
KiRa [710]2 years ago
6 0

Answer:

66 girls

Step-by-step explanation:

Givens:

●120% boys of girls

▪︎1.2 × g

☆when g is the number of girls

●80 boys

▪︎meaning you can set up a proportion

Solving:

g × 1.2 = 80

g=80/1.2

g=66.66

So, since you can't go over percent, the answer is 66.

Checking:

g × 1.2 = 80

66 × 1.2 = 80

80=80✅

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Find the probability of getting tails on every toss of a coin when the coin is tossed 5 times.
icang [17]

Answer:

1/10, or 10%

Step-by-step explanation:

There are 2 outcomes you can get from one toss, heads and tails. Therefore, if you tossed it once, the probability of landing tails would be 1/2, or 50%. Since you toss it 5 times, you will multiply the probability of one toss by five. 1/2x5 = 1/10, so your probability of landing tails on every toss when thrown 5 times is 1/10, or 10% :)

5 0
3 years ago
Please ANsWER hellovgfvvvfvvvvvcvccggvcv​
nika2105 [10]

Answer: 70

Step-by-step explanation:

560/8=70

6 0
2 years ago
2(10r-7)-2(1+10r)=-r+2r
DerKrebs [107]

Answer:

r = -16

Step-by-step explanation:

We will use "distributive" property and "adding like terms" concepts in solving for the unknown variable "r".

The distributive property is:

a(b+c) = ab + ac

So

2(10r-7) = 20r - 14

also

-2(1+10r) = -2 - 20r

So, our equation becomes:

2(10r-7)-2(1+10r)=-r+2r\\20r-14-2-20r=-r+2r

Now we add like terms and move variables (r) to one side and numbers to another. Like terms mean:

3r + 5r = (3+5)r = 8r

So, we have:

20r-14-2-20r=-r+2r\\-16=r\\r=-16

So,

the value of r is -16

6 0
3 years ago
Please solve this. im confused
jolli1 [7]
The answer is:

x = 5.3

3 0
2 years ago
Which undefined term is needed to define a circle?<br> Point <br> Radius <br> Line <br> Ray
astra-53 [7]

Answer:

<h2>POINT</h2>

Step-by-step explanation:

Of all the terms mentioned, only one of them is undefined, and that's a point.

Other terms have their own definitions (are defined).

3 0
3 years ago
Read 2 more answers
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