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Deffense [45]
3 years ago
15

10 people can paint a building in 5 days. if each person painted as quickly as the others then how much of the building could 7

people paint in 5 days?
Mathematics
2 answers:
Paul [167]3 years ago
8 0
So basically it takes 10 people to paint a whole building. Forget about the 5 days. That's just there to confuse you. You have to first find out how much of a building can one person paint so, 1/10. So that means that 7 people can paint 7/10 of a building in 5 days
Bond [772]3 years ago
4 0
ANSWER

\frac{7}{10}

EXPLANATION


It was given that, 10 people can paint a building in 5days.


We can write the ratio,

10 : 1

Now we want to find how much of the building

7 people could paint in the same 5 days working at the same rate.


Let it be in the ratio,

7 : x

Then we can write and solve the following proportional equation for x,

10 : 1 = 7 : x




We can rewrite this as a fraction to get,

\frac{10}{1}  =  \frac{7}{x}


Let us now cross multiply to get,


10x = 7


We divide both sides by 10 to obtain,


x =  \frac{7}{10}
This means the 7 people can only paint a fraction ( 70%) of the building and not the whole building.
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3 years ago
At a fundraiser, students sold chocolate bars with almonds and chocolate bars with walnuts. The number of chocolate bars with al
BabaBlast [244]

Answer:

Total number chocolate bars with almonds sold were approximately 66.34 and total number chocolate bars with walnuts sold were approximately 34.67.

Step-by-step explanation:

Let number chocolate bars with almonds be x

Also let number chocolate bars with walnuts be y

Given:

Number of chocolate bars with almonds that were sold one weekend was 3 less than 2 times the number of chocolate bars with walnuts.

Framing the above sentence in equation form we get;

x=2y -3

Also given:

The number of chocolate bars with walnuts plus 4 times the number of chocolate bars with almonds was 300.

Framing the above sentence in equation form we get;

4x+y=300

Now Substituting the value of x in above equation we get;

4x+y=300\\4(2y-3)+y=300\\8y-12+y=300\\9y=300+12\\9y=312\\\\y=\frac{312}{9} \approx 34.67

Now we will substitute the value of y in equation x=2y -3 we get;

x=2y-3 = 2\times34.67 -3 = 69.34-3\approx66.34

Hence, Total number chocolate bars with almonds sold were approximately 66.34 and total number chocolate bars with walnuts sold were approximately 34.67.

6 0
4 years ago
Consider the graph of the linear function h(x) = –6 + h(x) equals negative 6 plus StartFraction 2 Over 3 EndFraction x. x. Which
kifflom [539]

The quadrant that the graph will not go through is the second quadrant.

The reason is that the slope is positive and there was a translation 6 units down

<h3>How to know the quadrant the graph will not pass</h3>

The quadrants are named in anticlockwise direction starting from the first which has x - positive and y - positive

The graph of y = 2x/3 is a graph with positive slope, moving through the third and first quadrant.

y = 2x/3 - 6 means a translation 6 units down and this pushed the line to get to the fourth quadrant

Hence the remaining quadrant that is untouched is the second quadrant

The graph is attached

learn more about graphs here:

brainly.com/question/25184007

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Bezzdna [24]

Answer:

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Step-by-step explanation:

because 35 divided by 5 is 7 and 15 divided by 15 is 3 making 7:3

hope it helps

4 0
3 years ago
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