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natita [175]
3 years ago
11

Help trying to help my daughter and I have no idea where to start

Mathematics
2 answers:
marysya [2.9K]3 years ago
6 0

Answer:

1/3

Step-by-step explanation:

5 * 3 =  15

SCORPION-xisa [38]3 years ago
6 0

Answer:

answer is scale of 1.25 == 5/4

Step-by-step explanation:

this is obtained by having the new side / the = old side, 15/12 =1.25, you can check it by doing 5*1.25 ==25/4 in decimal form.

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The birth rate of a population is b(t) = 2300e0.021t people per year and the death rate is d(t)= 1450e0.018t people per year, fi
Cerrena [4.2K]

Answer:

38,674.This area represents the increase in population over a 10-year period.

Step-by-step explanation:

When graphed over the interval 0 ≤ t ≤ 10, the birth rate is more than the death rate. This means the area between the two curves is the amount of births subtract the amount of deaths. This results in an area which means the increase of the population.

The birth rate is graphed in green and the death rate is graphed in blue.

To find the area, take the integral of the difference of the functions:

\int\limits^{10}_0 {2300e^{0.021t} - 1450e^{0.018t} } \, dt \\\\\frac{2300e^{0.021t}}{0.021} -  \frac{1450e^{0.018t}}{0.018} \\\\(\frac{2300e^{0.21}}{0.021} -\frac{1450e^{0.18}}{0.018} ) - (\frac{2300}{0.021}- \frac{1450}{0.018} ) \\\\135117.12 - 96442.51 \\\\38,674

7 0
3 years ago
Mai has picked picked 1 cup of strawberries for a cake, which is enough for 3/4 of the cake. How many cups does she need for the
Naily [24]
She will need 1/3 cup because she has already covered 3/4
8 0
3 years ago
Read 2 more answers
Really need help with 24 u have to use distributive property
Darya [45]

Answer:

x= 3.5

Step-by-step explanation:

5*2x= 10x

5*7= 35

10x/10= x

35/10= 3.5

3.5= x

8 0
3 years ago
Frosting Mountain cupcake shop is running low on vanilla. They have 2 cups of vanilla left and each batch of cupcakes needs 1 4
Vladimir [108]

Answer:0.143

Step-by-step explanation:

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3 years ago
Will mark brainliest please help <br>​
snow_lady [41]

Answer:8_1

Step-by-step explanation:

3 0
3 years ago
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