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3 years ago

Help Please Just with part B...PLEASE!!!

Mathematics

1 answer:

dsp733 years ago

3 0

Answer:

see explanation

Step-by-step explanation:

Note that $\frac{6}{8}$ can be simplified by dividing the numerator and denominator by 2, so that

$\frac{6}{8}$ = $\frac{3}{4}$ in simplest form

Thus parsley and scallions are the same amount. Ramon is correct.

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Solve simultaneously: x-4y=1 6y=x-2

zubka84 [21]

Answer:

separate : x-4y=1
= x-2y = 10

the other one: x = 6y + 2

togetehr : x = -1 , y = -1/2

step-by-step explanation:

i don't know if they're together so ima give you the answer for them if they are and just separte answers

6 0

2 years ago

Brooke has scores of 84, 72, 90, 95, and 87 on her first five quizzes. After taking the sixth quiz, Brooke’s mean score increase

OlgaM077 [116]

Answer:

90, 86, 92, 89

Step-by-step explanation:

The mean of her first five quiz scores is found by adding the scores together and dividing by 5:

(84+72+90+95+87)/5 = 428/5 = 85.6

Any value higher than this mean for the sixth quiz score will raise the overall mean; any value below this mean for the sixth quiz score will lower the overall mean. This means the values that could increase her mean are 90, 86, 92 and 89.

7 0

3 years ago

Read 2 more answers

Nora ordered a set of purple and green pins. She received 50 pins, and 70% of them were

Paladinen [302]

Answer:

Nora received 35 purple pins.

Step-by-step explanation:

If Nora received 50 pins, and 70% of the pins were purple, to calculate the number of purple pins Nora received, we must find 70% of 50.

To find 70% of 50, we can multiply 50 by the decimal form of 70%:

$50 * .7=35$

Therefore, we can conclude that since 70% of the 50 pins Nora received were purple, and 70% of 50 is 35, Nora received 35 purple pins.

4 0

2 years ago

3.) Timothy's Taxi Company charges customers a total cost, t, for a taxi ride based on m, the

Oksi-84 [34.3K]

Answer:

D) {1, 2, 3}

Step-by-step explanation:

Simply solve for m given our equation:

11 = 3.50 + 2.50m

Start by subtracting 3.50 on both sides:

7.5 = 2.50m

Next, divide by 2.50 on both sides to obtain our value for m:

3 = m

Now since we're looking for a complete set of values, we have to consider all values that are 3 and below for m. This makes D) our answer

5 0

2 years ago

The cost of a daily newspaper varies from city to city. However, the variation among prices remains steady with a population sta

vekshin1

Answer:

Yes, there is sufficient evidence to support the claim that the mean cost is $1.

Step-by-step explanation:

Data Given:

The population standard deviation $\sigma$ = $0.2

The sample mean cost $\bar {X}$ = $0.93

The sample size n = 12

From above we can use the Z-test for testing the mean from the above given data.

To check whether the mean cost of newspaper is $1.00

$\mathbf{H_o}$ : $\mu$ = $1

$\mathbf{H_1}$ : $\mu$ $\neq$ $1

The test statistics Z = $\frac{\bar {X}- \mu}{\frac{\sigma }{\sqrt{n}} }$

Z = $\frac{0.93- 1}{\frac{0.2}{\sqrt{12}} }$

Z = -1.212

The P-value = 2P (Z< - 1.212)

= 2 × 0.1128

= 0.2256

Since the value of P is more than the significance level; do not reject the $\mathbf{H_o}$

Conclusion: We therefore conclude that there is sufficient evidence to support the claim that the mean cost is $1.

8 0

3 years ago