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4 years ago

11 plz help I don't get it

Mathematics

1 answer:

maksim [4K]4 years ago

6 0

Well i don't really understand it either because i don't know what your currently learning in school, but i guess you could use the guess and check method

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Solve for e: 7 e - 4 = 31

Zepler [3.9K]

(e=5)

7e-4=31
7e=35
e=5

4 0

3 years ago

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A sales associate in a department store earns a commission on each suit and each pair of shoes sold .on week she earned $47 in c

Svetradugi [14.3K]

As for this, we have to take in the given equivalents and work with them to get the commission for selling each suit and each pair of shoes.

Let us put first that each suit is represented with a and for each pair of shoes, we represent them with b.

The given equations would be these:
47 = 3a + b
107 = 7a + 2b

Now we use the first equation to use for substitution purposes. We would first determine b in the process. To find b, we would be utilizing the equation
b = 47 - 3a

We then move to substitution.
107 = 7a + 2b
107 = 7a + 2(47 - 3a)
107 = 7a + 94 - 6a
107 - 94 = 7a -6a
13 = a

now that we have the value for a, we then use it to find b.

b = 47 - 3a
b = 47 - 3(13)
b = 47 - 39
b = 8

So the answer would be 13 for each suit and 8 for a pair of shoes.

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3 years ago

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At the local nursery, 1/8 of the plants for sale are flowers and another 1/4 of them are bushes. What fraction of the plants for

Nezavi [6.7K]

I’m not sure if this is correct but
you have used 3/8 of the plants so you will have 5/8 left to use

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3 years ago

Lucas is planting grass on the shaded portions of the yard. What will be the total area covered by grass?

maxonik [38]

Complete Question:

Lucas is planting grass on the shaded portions of the yard. What will be the total area of covered by grass? Fill in the missing.

Part A= 12 x ? = ? ft²

Part B= 0.5 x ? x 9 = ?ft²

Part C= 0.5 x 7 x ? = ?ft²

Total Area= ?ft²

Answer:

$A = 108ft^2$

$B = 27ft^2$

$C = 24.5ft^2$

$Area = 159.50ft^2$

Step-by-step explanation:

Given

See attachment

From the attachment;

Part A is a rectangle with dimension 9ft by 12ft

So,

$A = 12ft * 9ft$

$A = 108ft^2$

Part B is a triangle with dimension: height = 6 and base = 9

The height is calculated as:

$Height = 12ft - 6ft = 6ft$

And the base is:

$Base = 18ft - 9ft = 9ft$

So, the area is:

$B = 0.5 * 6ft * 9ft$

$B = 27ft^2$

Part C is a triangle with dimension: height = 7 and base = 7

So, the area is:

$C = 0.5 * 7 * 7ft^2$

$C = 24.5ft^2$

Total Area is:

$Area = A + B + C$

$Area = 108ft^2 + 27ft^2 + 24.5ft^2$

$Area = 159.50ft^2$

8 0

3 years ago

For the rhombus below, find the measure of angles 1,2,3 and 4.

Alexus [3.1K]

Answer:

∠1 is 33°

∠2 is 57°

∠3 is 57°

∠4 is 33°

Step-by-step explanation:

First off, we already know that ∠2 is 57° because of alternate interior angles.

Second, it's important to know that rhombus' diagonals bisect each other; meaning they form 90° angles in the intersection. Another cool thing is that the diagonals bisect the existing angles in the rhombus. Therefore, 57° is just half of something.

Then, you basically just do some other pain-in-the-butt things after.

Since that ∠2 is just the bisected half from one existing angle, that means that ∠3 is just the other half; meaning that ∠3 is 57°, as well.

Next is to just find the missing angle ∠1. Since we already know ∠3 is 57°, we can just add that to the 90° that the diagonals formed at the intersection.

57° + 90° = 147°

180° - 147° = 33°

∠1 is 33°

Finally, since that ∠4 is just an alternate interior angle of ∠1, ∠4 is 33°, too.

5 0

3 years ago