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nadezda [96]
3 years ago
9

Tom got 15 questions right on a test and scored 75%. How many questions were there total on Tom's test?

Mathematics
2 answers:
OverLord2011 [107]3 years ago
4 0

Answer: 20 questions

Step-by-step explanation:

Pani-rosa [81]3 years ago
4 0

Answer:

15/x*100=75

75/100*15=x

x=20

total no. of questions

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2. In a given country, records show that of the registered voters, 45% are Democrats, 35% are Republicans, and 20% are independe
Kitty [74]

Answer:

P(R) = 0.14

P(I) = 0.16

P(D) = 0.315

Step-by-step explanation:

Let Democrat = D

Republican = R

Independent = I

If 45% are Democrats, 35% are Republicans, and 20% are independents, then

Total registered voters = 100

 In an election, 70% of the Democrats, 40% of the Republicans, and 80% of the independents voted in favor of a parks and recreation bond proposal. That is,

D = 0.7 × 45 = 31.5

R = 0.4 × 35 = 14

I = 0.8 × 20 = 16

 If a registered voter chosen at random is found to have voted in favor of the bond, what is the probability that the voter is

a Republican:

P(R) = 14 /100 = 0.14

an Independent

P(I) = 16/100 = 0.16

a Democrat

P(D) = 31.5/100 = 0.315

6 0
3 years ago
In the figure above, arc RST measures 30°
Ivenika [448]
My brain just says this I not sure if it’s right or not but I think it’s C
8 0
4 years ago
Learning Task 3: In your answer sheet, write the letter of the correct answe
miss Akunina [59]

Answer:

a.) May or may not a polynomial function ( depends on c)

b.) Not a polynomial function.

c.) Not a polynomial function.

d.) It is a polynomial function.

Step-by-step explanation:

A polynomial function is of the form - a_{n}x^{n} + a_{n-1} x^{n-1} + a_{n-2} x^{n-2} + .....+ a_{1}x + a_{0}

where n is positive integer and n\neq 0

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P(x) = 2x³ + 32 - 4x + 4c

It may or may not a polynomial function because we did not know about the constant c.

b.)

H(x) = 4x^{\frac{1}{2} } - 3x⁴

It is not a polynomial function because \frac{1}{2} is not integer.

c.)

G(x) = 2x^{-3} + 5

It is not a polynomial function because -5 is not a positive integer.

d.)

F(x) = 2x³ - 5x + 33x²

It is a polynomial function.

8 0
3 years ago
HELP ME ! beautiful people that are good at math
ANTONII [103]
-3(-4y+3) +7y
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12y-9+7y
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8 0
3 years ago
Hey y’all , please give me the correct answer.
eduard

Answer:

-s-6>-7

Step-by-step explanation:

Just ask!

Hope this helps. :)

6 0
2 years ago
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