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yawa3891 [41]
4 years ago
7

Malory got a 75% on her math test. to earn that score, she got 27 questions correct. he many questions were on the test?

Mathematics
1 answer:
aivan3 [116]4 years ago
8 0
100-75=25
27 divided by 0.25 is108
there are 108 questions on the test
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Relationship B has a greater rate than Relationship A. This graph represents Relationship A.
r-ruslan [8.4K]

The second table could represent relationship B.

Step-by-step explanation:

Step 1:

The tables give a relationship between the growth of a plant and the number of weeks it took.

To determine the rate of each table, we determine the growth of the plant in a single week.

The growth rate in a week = \frac{Difference in height}{time taken}.

Step 2:

For the given graph, the points are (4, 3) and (8, 6).

The growth rate in a week = \frac{Difference in height}{time taken} = \frac{6-3}{8-4}=\frac{3}{4}  = 0.75.

So the growth rate for relationship A is 0.75.

Step 3:

Now we calculate the growth rates of the given tables.

Table 1's growth rate in a week = \frac{Difference in height}{time taken} = \frac{3-1.2}{5-2}=\frac{1.8}{3}  = 0.6.

Table 2's growth rate in a week = \frac{Difference in height}{time taken} = \frac{4-1.6}{5-2}=\frac{2.4}{3}  = 0.8.

Table 3's growth rate in a week = \frac{Difference in height}{time taken} = \frac{2-1.5}{4-3}=\frac{0.5}{1}  =0.5.

Table 4's growth rate in a week = \frac{Difference in height}{time taken} = \frac{3.5-1.4}{5-2}=\frac{2.1}{3}  = 0.7.

Since relationship B has a greater rate than A, Table 2 is relationship B.

3 0
3 years ago
A submarine dives at an angle of 13 degrees to the surface of the water. The submarine travels at a speed of 720 feet per minute
n200080 [17]

The depth of sun after 5 minutes is 809.82 feet

<em><u>Solution:</u></em>

A submarine dives at an angle of 13 degrees to the surface of the water

The submarine travels at a speed of 720 feet per minute

The figure is attached below

ACB is a right angled triangle

AB is the distance between surafce of water and submarine

BC is the depth of submarine

Let "x" be the depth of sun after 5 minutes

Therefore, distance between submarine and surface of water is:

AB = 720 \frac{feet}{minute} \times 5 \text{minute} = 3600 feet

Submarine dives at an angle of 13 degrees to the surface of the water

Therefore, angle A = 13 degrees

Now we have to find BC

By definition of sine,

sin \theta = \frac{opposite}{hypotenuse}

Here, opposite = BC = x

hypotenuse = AB = 3600 feet

Thus, we get,

sin \theta = \frac{BC}{AB}\\\\sin \theta = \frac{x}{3600}\\\\sin 13 = \frac{x}{3600}\\\\0.2249 = \frac{x}{3600}\\\\x = 3600 \times 0.2249\\\\x = 809.82

Thus the depth of sun after 5 minutes is 809.82 feet

8 0
3 years ago
I will choose brainliest. Please solve.
tresset_1 [31]

Answer:

its 4

Step-by-step explanation:

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The maximum walking speed S. in feet per second, of an animal can be modeled by the equation
Arada [10]

Answer:

The answer is 1.41 times

Step-by-step explanation: I had the

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Given the information below, is triangle QRS similar to triangle UVT? If so, give the scale factor
riadik2000 [5.3K]
The scale factor is from 1 to 100 that is the answer
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4 years ago
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