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LenaWriter [7]
3 years ago
9

Julio walks 3/1/2 miles in 1/1/4 hours

Mathematics
2 answers:
Ivenika [448]3 years ago
8 0

You dint state your question


Nostrana [21]3 years ago
6 0

2.8 is your answer...




Hope this helps...


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What is the value of (-35) divided by (5/7)?
larisa86 [58]

Answer:

-49

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

3 0
3 years ago
7th grade math help me please :))
ivanzaharov [21]
It decreased from week one to week two by -1.875, then it started to increase from 0.625 then to 1.5 by week 4
3 0
3 years ago
Sally is 3 years older than Jim. Jim is 18 years old. After correctly carrying out the Solve step of the five-step problem-solvi
AnnyKZ [126]

Answer:

Step-by-step explanation:

Jim is 18

Sally: 3 years older than Jim

18 + 3 = 21

7 0
3 years ago
Read 2 more answers
11.1.21 A survey​ asked, "How many tattoos do you currently have on your​ body?" Of the males​ surveyed, responded that they had
hram777 [196]

Complete question :

The Harris Poll conducted a survey in which they asked, "How many tattoos do you currently have on your body?" Of the 1205 males surveyed, 181 responded that they had at least one tattoo. Of the 1097 females surveyed, 143 responded that they had at least one tattoo. Construct a 95% confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval.

Answer:

(−0.0085 ; 0.0481)

Step-by-step explanation:

Given that :

n1 = 1205 ; x1 = 181 ; n2 = 1097 ; x2 = 143 ; α = 95%

Zα/2 = 1.96 ( Z table)

Confidence interval : (p1 - p2) ± E

E =Zα/2 * √[(p1q1/n1) + (p2q2/n2)]

p1 = x1 /n1 =181/1205 = 0.1502

q1 = 1 - p1 = 1 -0.1502 = 0.8498

p2 = x2/n2 = 143/1097 = 0.1304

q2 = 1 - p2 = 1 -0.1304 = 0.8696

E = 1.96 * √(0.0001059 + 0.0001033)

E = 0.0283

p1 - p2 = 0.1502 - 0.1304 = 0.0198

Lower boundary = 0.0198 - 0.0283 = −0.0085

Upper boundary = 0.0198 + 0.0283 = 0.0481

(−0.0085 ; 0.0481)

7 0
3 years ago
Solve the following problem first using a tape diagram and then using an equation: In a school choir, 1/2 of the members were gi
julsineya [31]

Answer: 9 boys remained in the choir.

Step-by-step explanation:

Let x be the number of of boys and y be the number of girls.

In a school choir, 1/2(half) of the members were girls.

i.e x=y  (1)

At the end of the year, 3 boys left the choir, and the ratio of boys to girls became 3:4.

\dfrac{x-3}{y}=\dfrac{3}{4}\\\\\Rightarrow\ 4(x-3)=3(y)\\\\\Rightarrow\ 4x-12=3y  

Put y= x from (1), we get

4x-12=3x\\\\\Rightarrow\ 4x-3x=12\\\\\Rightarrow\ x=12

Thus , the number of boys : x= 12

Boys remained in the choir = 12-3=9

6 0
3 years ago
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