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3 years ago

(Write the rate as a fraction, then find each unit rate.)

Mathematics

1 answer:

julsineya [31]3 years ago

8 0

1800 / 5....unit rate = 360/1...which is basically saying the wheel rotates 360 degrees every revolution

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The population of Yuba City, California is 61,360 people. What is 61,360 rounded to the nearest thousand? * 5 points

Cloud [144]

Answer: 61,000

Step-by-step explanation:

61,360 is nearest to 61,000 then too 62,000

3 0

3 years ago

Read 2 more answers

The ratio of the volume of soda in glass A to the volume of glass B is 8/3 to 7/2

MrRa [10]

Answer:

Total volume in the two glasses is 740 mL.

Step-by-step explanation:

Given:

Ratio of the volume of soda in glass A to the volume of glass B = 8/3 : 7/2

Volume of soda in glass A = 320mL

To Find :

The total volume in the two glasses = ?

Solution:

Let the volume of soda in glass B be x

then

$\text{ratio of soda in glass A} \times \text{ the volume of soda in glass B} = \text{ratio of soda in glass B} \times \text{ the volume of soda in glass A}$

Substituting the values ,

$\frac{8}{3} \times x = \frac{7}{2} \times 320$

$\frac{8}{3} \times x = \frac{2240}{2}$

$\frac{8}{3} \times x = 1120$

$x = 1120 \times \frac{3}{8}$

$x = \frac{3360}{8}$

x = 420

Now total volume of soda in the two glasses

=> volume of soda in glass A + volume of soda in glass B

=> 320 + 420

=>740mL

5 0

3 years ago

Using Distributive property what does 4(x+3)

Natalija [7]

This is easy 4x+12 the answer

3 0

3 years ago

BRAIN TO CORRECT ANSWER!!

vaieri [72.5K]

Answer:

Step-by-step explanation:

X is most likely used to symbolize a number under twenty but over 10 - but you don't have the question posted

6 0

2 years ago

Read 2 more answers

For a statistics class project, a college student randomly samples 75 men who exercise at a gym regularly and 68 women who exerc

raketka [301]

Answer:

iii. The data do not provide sufficient evidence to conclude that the mean number of minutes exercised per week is larger for men than for women at this gym

Step-by-step explanation:

1) The hypotheses are

H0: u1 ≤ u2 against the claim Ha: u1 > u2

The men spend less or equal time than the women at the gym each week

the men spend greater time than the women at the gym each week

2) The test statistic is

t= (x1`- x2`) / √ s1²/n1+ s2²/n2

t= 65.7- 64.8/√(13.9)²/75 + (9.6)²/68

t= 0.9/√2.57613 +1.35529

t=0.4539

and the degrees of freedom is

3) υ = [s₁²/n1 + s₂²/n2]²/ (s₁²/n1 )²/ n1-1 + (s₂²/n2)²/n2-1

=[(13.9)²/75 + (9.6)²/68]²/ [(13.9)²/75 ]² /74 + [ (9.6)²/68]²/67

= 139

The degrees of freedom is always rounded in this calculation

4) The Critical region is [1.656, ∞]

5) t-score is outside of the critical region, so there is not enough evidence to reject H₀.

iii. The data do not provide sufficient evidence to conclude that the mean number of minutes exercised per week is larger for men than for women at this gym

4 0

2 years ago