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sattari [20]
3 years ago
6

If Nicholas spends $8.10 on pixie sticks how many pounds did he purchase. Pixie sticks $4.50 per pound show word. Jane measure $

9.75 worth of jolly ranchers how many pounds did she buy Jolly ranchers $3.25per pound
Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
8 0

Answer:

Nicholas bought 1.8 lbs, and Jane bought 3lbs.

Step-by-step explanation:

Divide the total amount by how much it is per pound, so 8.10 divided by 4.50 = 1.8 and 9.75 divided by 3.25= 3

Ivahew [28]3 years ago
8 0

Answer:

Nicholas has purchased 1.8 pounds of pixie sticks.

Jane has purchased 3.0 pounds of Jolly ranchers.

Step-by-step explanation:

Cost of 1 pounds of pixie sticks = $4.50

Let the number of pixie sticks = x

Total  money spend on x pounds of pixie sticks = $8.10

\$4.50\times x=\$8.10

x=\frac{\$8.10}{\$4.50}=1.8 pounds

Nicholas has purchased 1.8 pounds of pixie sticks.

Cost of 1 pounds of Jolly ranchers = $3.25

Let the number of Jolly ranchers = y

Total  money spend on y pounds of Jolly ranchers = $9.75

\$3.25\times y=\$9.75

x=\frac{\$9.75}{\$3.25}=3.0 pounds

Jane has purchased 3.0 pounds of Jolly ranchers.

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If there are tickets sold to children for $5 and $12 to adults, and there are only 400 tickets sold for $3925 then how many chil
Sever21 [200]

125 children tickets were sold

<u>Solution</u>:

Given that  

Price of 1 ticket sold to children = $5

Price of 1 ticket sold to adult = $12

Total number of ticket sold = 400

Amount generated by selling 400 tickets = $3925.

Need to calculate number of ticket sold to children’s

Let’s assume number of tickets sold to childrens = x

So number of tickets sold to adults = 400 – x

Amount generated from x ticket sold to children =x \times \text { Price of } 1 \text { ticket sold to children }

x \times 5=5 x

Amount generated from (400 – x) tickets sold to adults =x \times \text { Price of } 1 \text { ticket sold to adult }

=(400-x) \times 12=4800-12 \mathrm{x}

<em>Total amount generated from 400 tickets = Amount generated from children’s tickets + Amount generated from adults ticket  </em>

= 5x + (4800 – 12x) = 4800 -7x

As given that amount generated = 3965

=> 3965 = 4800 – 7x

Solving above expression to get value of x, we get

7x = 4800 - 3965  

=> 7x = 875

=> x = 125.

Hence number of children tickets sold = 125.

4 0
3 years ago
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ASHA 777 [7]

stranger things A jewellery shop is having a sale.

A bracelet is reduced to £240.

a) What is the original price?

A ring is reduced to £840.

This is 40% of the original price.

b) Work out the original price of this ring.A jewellery shop is having a sale.

A bracelet is reduced to £240.

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% of the original price.

b) Work out the original price of this ring.A jewellery shop is having a sale.

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A ring is reduced to £840.

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3 years ago
Read 2 more answers
Find the slope of a line perpendicular to y=3×+7​
polet [3.4K]

Answer:

-1/3

Step-by-step explanation:

y = 3x+7

This is in the form y = mx+b

The slope is m so it is equal to 3

Perpendicular lines have slopes that are negative reciprocals

m perpendicular = - (1/3)

                   

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3 years ago
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Answer:

x= 3/5

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3 years ago
An article regarding interracial dating and marriage recently appeared in the Washington Post. Of the 1,709 randomly selected ad
VMariaS [17]

Answer:

The 95% confidence interval for the percent of all black adults who would welcome a white person into their families is (0.8222, 0.8978).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

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For this problem, we have that:

323 blacks, 86% of blacks said that they would welcome a white person into their families. This means that n = 323, p = 0.86

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.86 - 1.96\sqrt{\frac{0.86*0.14}{323}} = 0.8222

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.86 + 1.96\sqrt{\frac{0.86*0.14}{323}} = 0.8978

The 95% confidence interval for the percent of all black adults who would welcome a white person into their families is (0.8222, 0.8978).

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