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3 years ago

There are between 24 and 40 student in a class. The ratio of boy to girl is 4:7 how many student are in the class

1 answer:

6 0

Answer:
33 Students
Step-by-step explanation:
4+7=11 so the number of students in the class must be a multiple of 11. The only multiple of 11 between 24 and 40 is 33.

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During the course of a year, the price of a boat decreased from $300,000 to $240,000. What was the percent decreased in price?

sp2606 [1]

It decreased by 20%.

3 0

4 years ago

Read 2 more answers

Plss helpp !! beainliest and extra points

expeople1 [14]

Answer: 17 miles

.5hr x 10Mph + .5 x 24mph = 17 miles

Step-by-step explanation:

4 0

3 years ago

Find the value of x. Round the length to the nearest tenth.

Colt1911 [192]

To find value of x we can use the sine angle function. From definition and basics of trigonometry we know that,

$\sin(\theta)=\dfrac{\mathrm{opposite}}{\mathrm{hypotenuse}}$

In this case our opposite is x and our hypotenuse is 15m and our angle $\theta$ is 35°.

Therefore,

$\sin(35^{\circ})=\dfrac{x}{15}$

If we solve for x,

$x=15\sin(35^{\circ})\approx\boxed{8.6\mathrm{m}}$

Hope this helps.

r3t40

7 0

3 years ago

A quantity P is an exponential function of time I, such that P = 160 when t = 6 and P = 150 when I = 4. Use the given informatio

Klio2033 [76]

Answer:

k = 0.032
P0 = 131.836

Step-by-step explanation:

Perhaps you want to use the points (t, P) = (4, 150) and (6, 160) to find the parameters P0 and k in the equation ...

$P(t)=P_0\cdot e^{kt}$

We know from the given points that we can write the equation as ...

$P(t)=150\left(\dfrac{160}{150}\right)^{(t-4)/(6-4)}=150\left(\dfrac{16}{15}\right)^{\frac{t}{2}-2}\\\\=150\left(\dfrac{16}{15}\right)^{-2}\times\left(\left(\dfrac{16}{15}\right)^{\frac{1}{2}}\right)^t$

Comparing this to the desired form, we see that ...

$P_0=150\left(\dfrac{16}{15}\right)^{-2}\approx 131.836\\\\e^{k}=\left(\dfrac{16}{15}\right)^{1/2}\rightarrow k=\dfrac{1}{2}(\ln{16}-\ln{15})\approx 0.0322693$

So, the approximate equation for P is ...

$P(t)=131.836\cdote^{0.032t}$

And the parameters of interest are ...

k = 0.032
P0 = 131.836

4 0

3 years ago

there are 1505 fruits for sale at a Farmers Market 39% of them are apples 28% are oranges 13% are honeydew melons and the rest a

pickupchik [31]

100% - (39% + 28% + 13%) = 100% - 80% = 20%
so 20% are watermelons.

20% of 1505...
0.20(1505) = 301

so 301 are watermelons

6 0

3 years ago