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3 years ago

Can someone write a story for a ration number 3:4 pls i really need some help on this

Mathematics

2 answers:

lianna [129]3 years ago

8 0

Answer:

on a tabel there are 3 dogs and 4 cats

Step-by-step explanation:

Eddi Din [679]3 years ago

5 0

Answer:

3:4

Step-by-step explanation:

Sarah has 3 slices of pie and jake has 4 slices of pie. Write this as a Ratio

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Emily and her children went into a grocery store and she bought $20.80 worth of bananas and peaches. Each banana costs $0.80 and

-BARSIC- [3]

b + p = 14 and 0.80 b + 2 p = 20.80 are the system of equations.

Step-by-step explanation:

Step 1 :

Let b be the number of bananas

Let p be the number of peaches

Given that the total of bananas and peaches that Emily bought = 14

Hence we have,

b + p = 14

Step 2 :

Cost of one banana = $0.80

Cost of one peach = $2

Cost of all the bananas and peaches Emily bought = $20.80

So sum of b bananas costing $0.80 and sum of p peaches costing $2 each is $20.80

Hence we have

0.80 b +2 p = 20.80

Solving for the above 2 equations we can get the value for b and p which will give the number of bananas and peaches bought

Step 3 :

Answer :

The system of equations that could be used to find the number of the bananas and the number of the peaches that Emily bought is given by

b + p = 14

0.80 b +2 p = 20.80

5 0

3 years ago

3(2k-5)=6(k-4)+9

charle [14.2K]

Answer:

infinite solutions

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Which one of the following is an ordered pair? {-3, 5} (2, 4, 0) (0, 6) 1, 3

Allushta [10]

(0,6)

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Which of the following is the most appropriate unit to describe the rate at which people are entering a theme park?

Nadya [2.5K]

Ft/s or you could do m/s

8 0

3 years ago

A group of researchers wants to know whether men are more likely than women to contract a novel coronavirus. They surveyed two r

olasank [31]

Answer:

Test statistic Z= 0.13008 < 1.96 at 0.10 level of significance

null hypothesis is accepted

There is no difference proportion of positive tests among men is different from the proportion of positive tests among women

Step-by-step explanation:

<em>Step(I)</em>:-

Given surveyed two random samples of 390 men and 360 women who were tested

first sample proportion

$p_{1} = \frac{360}{390} = 0.9230$

second sample proportion

$p_{2} = \frac{47}{52} = 0.9038$

Step(ii):-

Null hypothesis : H₀ : There is no difference proportion of positive tests among men is different from the proportion of positive tests among women

Alternative Hypothesis:-

There is difference between proportion of positive tests among men is different from the proportion of positive tests among women

$Z = \frac{p_{1}- p_{2} }{\sqrt{PQ(\frac{1}{n_{1} }+\frac{1}{n_{2} } } }$

where

$P = \frac{n_{1}p_{1} +n_{2} p_{2} }{n_{1}+n_{2} }$

P = 0.920

$Z= \frac{0.9230-0.9038}{\sqrt{0.920 X0.08(\frac{1}{390}+\frac{1}{52} } )}$

Test statistic Z = 0.13008

Level of significance = 0.10

The critical value Z₀.₁₀ = 1.645

Test statistic Z=0.13008 < 1.645 at 0.1 level of significance

Null hypothesis is accepted

There is no difference proportion of positive tests among men is different from the proportion of positive tests among women

7 0

3 years ago