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Eddi Din [679]
4 years ago
12

Rewrite the proportion 7:21 = 3:9 as a proportion using fractions.

Mathematics
2 answers:
Fudgin [204]4 years ago
8 0
A :) hope that helped
Margarita [4]4 years ago
3 0

Answer:

a

Step-by-step explanation:

7/21=3/9 bc why would it be anything else?

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16=2^? what is the power or expotinal notation
love history [14]

Answer:

8

Step-by-step explanation:

2x8=16

5 0
3 years ago
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What is the lenth of SR
iogann1982 [59]
The length is SR is 15 units
5 0
3 years ago
The mileage of a new model SUV on the interstate highway has been stated by the manufacturer as having a mean of 20 mpg and a st
Allushta [10]

Answer: 0.0227502

Step-by-step explanation:

Let x denote the random variable that represents the mileage of SUV.

As per given we have,

\mu = 20

\sigma = 3

sample size : n= 36

We assume that  the mileage of SUV is normally distributed.

Z-score value corresponds to x= 21.0,

z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}=\dfrac{21-20}{\dfrac{3}{\dfrac{}{36}}}=2

Using standard z-value table ,

The probability that the sample average will be over 21.0 mpg:-

P(X>35)=P(z>2)=1-P(z<2)=1-0.9772498=0.0227502

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3 0
3 years ago
Which of the following correctly shows the quotient of 75 divided by 5?
MAVERICK [17]

Answer:

15

Step-by-step explanation:

in multiplication we have given form of expression

Dividend(D) = Quotient(Q) x Divisor(d) + Remainder(r)

The number which is getting divided is called dividend

divisor is the number which divides the dividend.

quotient is the No. of times a dividend is divisible by divisor.

if dividend is not completely divisible by divisor then leftover after quotient * divisor is remainder.

value of remainder should be always less than divisor.

In  the problem given

Dividend is 75

divisor is 5

so by the given above expression

Dividend(D) = Quotient(Q) * Divisor(d) + Remainder(r) ----> 1

we know that 15*5 = 75

75 = 15*5 + 0

comparing with the  expression 1

we have q = 15

r = 0

Thus, quotient is 15.

7 0
3 years ago
What is the speed of the ball if it travels 19km in 19min
kifflom [539]
Speed=distance/time

s=19km/19min=1km/min
8 0
3 years ago
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