Cathy bought 2 jars of sauce for $3. What is the constant of proportionality ?

Answers

Answer 1

Answer: It's $1.50 each jar

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For the equations given below, which statement is true?-3x-8=19-3x-2=25A. The equations have the same solution because the second equation can be obtained by subtracting 6 from both sides of the first equation.B. The equations have the same solution because the second equation can be obtained by adding 6 to both sides of the first equation.C. The equations have the same solution because the second equation can be obtained by subtracting 19 from both sides of the first equation.OD. The equations do not have the same solution because the second equation can be obtained by adding 6 to both sides of the first equation.

Need help on 41-44 please

Answers

41:1/4 42:1/12 43:-2/6 44:2/5

Look up what rational means and then you will understand what to do

Jack can swim 3 laps in 7 minutes.At this rate, how many laps can Jack swim in 28 minutes?

Answers

Jack can swim 12 laps in 28 minutes. 28 minutes is 4 times greater than the time it took him to swim 3 laps. With 28 minutes he should therefore be able to swim 4 times as many laps. 3 times 4 equals 12

he can swim 3 laps in 7 minutes.
28÷7=4
4*3=12
we can conclude that in 28 minutes he can swim 12 laps.

Using the numbers 8, 6, 4 write an expression that equals 7

Answers

$(8-4)/(4)+6=(4)/(4)+6=1+6=7$

$8-(8-6)/(6-4)=8-(2)/(2)=8-1=7$

$(8+6)/(6-4)=(14)/(2)=7$

In a school of 450 people 110 are in the choir 240 are in a band and 60 are in bothWhat is the probability

Answers

The question doesn't require any specific probabilities, but I'm adding my own calculations to make it easier for you to solve your own problem

Answer:

Questions added and answered below

Step-by-step explanation:

Venn Diagram

When we have different sets, some of them belong only to one set, some belong to more than one, some don't belong to any of them. This situation can be graphically represented by the Venn Diagrams.

Let's analyze the data presented in the problem and fill up the numbers into our Venn Diagram. First, we must use the most relevant data: there are 60 people in both the choir and the band. This number must be in the common space between both sets in the diagram (center zone, purple).

We know there are 110 people in the choir, 60 of which were already placed in the intersection zone, so we must place 110-60=50 people into the blue zone, belonging to C but not to B.

We are also told that 240 people are in a band, 60 of which were already placed in the intersection zone, so we must place 240-60=180 people into the red zone, belonging to B but not to C.

Finally, we add the elements in all three zones to get all the people who are in the choir or in the band, and we get 50+60+180=290. Since we have 450 people in the school, there are 450-290=160 people who are not in the choir nor in the band.

The question doesn't ask for a particular probability, so I'm filling up that gap with some interesting probability calculations like

a) What is the probability of selecting at random one person who is in the band but not in the choir?

The answer is calculated as

$\displaystyle P(A)=(180)/(450)=0.4$

b) What is the probability of randomly selecting one person who belongs only to one group?

We look for people who are in only one of the sets, they are 50+180=230 people, so the probability is

$\displaystyle P(B)=(230)/(450)=0.51$

b) What is the probability of selecting at random one person who doesn't belong to the choir?

We must add the number of people outside of the set C, that is 180+160=340

$\displaystyle P(C)=(340)/(450)=0.76$

A tall man, who is sitting up straight in his seat, is completely blocking John's view at the cinema. John is 10m from the 4m high screen. The man is 1m in front of John. How far would the man need to lower his head and shoulders if John is to be able to see all of the screen ?

Answers

i would answer that but to bissy finding my mine answer

What is the surface are of a storage b

Answers

about 50% or more it can't be less

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