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liraira [26]
1 year ago
9

at the elementary school fun fair,the ratio of the number of adults to the number of kids is 4:7. If there are 159 more kids tha

n adults, how many adults are at the fun fair
Mathematics
1 answer:
Oxana [17]1 year ago
4 0

the ratio of the number of kids is 4:7

that means for every 7 kids we have 4 adults

7 kids ---- 4 adults

the difference is 3

we dived the difference of the kids between the difference of the ratio

150/3 = 50

the number we obtained must be multiply by the ratio of each part

7(50) = 350 number of kids

4(50)=200 number of adults

there are 200 adults at the fun fair

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A supervisor has to estimate the cost to unload a shipment. The cost of labour is $33 per hour, per worker.
Agata [3.3K]
The answer is D cause 1/4 of 33$ is 8.25 so you do 33+33+33 which is 99 then you multiply that by 6 which is 594 then you multiply 8.25 by 3 to account for all the workers then add that to 594 and then you get your answer which is 618.75
5 0
3 years ago
Starlight tree farms sells douglas firs and noble first one December they sold 139 more douglas first than noble firs the total
Aloiza [94]
Part A:

Given that <span>Starlight tree farms sells Douglas Firs and Noble First.

Let </span>n be the number of Noble Fir trees sold, then<span> if they sold 139 more Douglas First than Noble Firs, this means that the number of Douglas First trees sold is n + 139.

Given that the total number of trees sold was 377, then we have, n + n + 139 = 377, which means that 2n + 139 = 377

Therefore, the equation that could be used to solve for n, the number of Noble Fir trees sold is 2n + 139 = 377.


Part B:

</span><span>Given that you are driving 55 miles per hour and you must drive a total of 440 miles. If you already driven 275 miles, then, the equation representing the number of hours, h, it will take to reach your destination is given by 55h + 275 = 440.

Subtracting 275 from both sides of the equation gives:

</span>55h+275-275=440-275 \\  \\ \Rightarrow55h=165
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Dividing both sides by 55 gives:

</span>\frac{55h}{55} = \frac{165}{55}  \\  \\ \Rightarrow h=3
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Therefore, the time it will take you to reach your destination is 3 hours.</span>
6 0
3 years ago
Jaysonn buys a car and pays by installments. Each installment is $567 per month. After 48 months , Jayson owes $1,250. What was
pogonyaev

Multiply her monthly payment by the number of months she paid so far:

567 x 48 = 27,216 paid so far.

Now add the amount she still owes:

27,216 + 1,250 = $28,466 total price.

8 0
3 years ago
Find the center and radius for the circle by the equations: x2 + y2 + 5x - y + 2 = 0.
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X2+5x+y2-y=-2
X2+2*5x2+(5/2)^2-(5/2)^2+y2-2*y/2+(1/2)^2-(1/2)^2=-2
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(x+5/2)^2+(y-1/2)^2=9/2
So centre =(-5/2,1/2)
Radius=(9/2)^(1/2)
7 0
3 years ago
A company spent 32% of its annual budget developing a new machine. What fraction of the company's budget was spent developing th
Talja [164]

Answer:

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Anything out of a percent is anything out of a hundred.

In this case it’s 32 percent.

It’s just 32/100

When simplified you’d get 8/25

6 0
2 years ago
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