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enyata [817]
3 years ago
9

Plz help I think I have it right but I am not for sure

Mathematics
1 answer:
Julli [10]3 years ago
8 0
Cost of jeans = 60
total cost of the shirts = 20x
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Mark earns $135 for selling a $1,500 refrigerator. Which sale listed has the same commission rate? A) $36 commission on a $400 d
sdas [7]
So the percentage Mark makes comparative to the price of the refrigerator sold is \frac{135}{1500}=0.09= 9%. If we take 9% of the given sale prices:
A: 0.09*400=36
B: 0.09*500=45
C: 0.09*1400=126
D: 0.09*600=54

So (A) has the same commission rate.
4 0
3 years ago
A pile of sand has a weight of 90kg the sand is put into a small bag and a medium bag and a large bag in the ratio 2:3:7
Finger [1]
90kg of sand had been puted in 3 bags but in 2+3+7=12 parts.
90kg/12=7.5kg
Small bag has 2 parts which is 7.5kg*2=15kg
Medium bag has 3 parts which is 7.5kg*3=22.5kg
Large bag has 7 parts which is 7.5kg*7=52.5kg
2:3:7=15kg:22.5kg:52.5kg
15kg+22.5kg+52.5kg=90kg
3 0
4 years ago
The sum of two complex numbers is −3 + 5i. If one of the complex numbers is 1−8i, which answer choice below is the other number?
AnnyKZ [126]

Answer:

C

Solution

For a complex number written in the form a + bi, a is called the real part of the complex number and b is called the imaginary part. The sum of two complex numbers, a + bi and c + di, is found by adding real parts and imaginary parts, respectively, that is, (a + bi) + (c + di) = (a + c) + (b + d)i. Therefore, the sum of 2 + 3i and 4 + 8i is (2 + 4) + (3 + 8)i = 6 + 11i.

Choice A is incorrect and is the result of disregarding i and adding all parts of the two complex numbers together, 2 + 3 + 4 + 8 = 17. Choice B is incorrect and is the result of adding all parts of the two complex numbers together and multiplying the sum by i. Choice D is incorrect and is the result of multiplying the real parts and imaginary parts of the two complex numbers, (2)(4) = 8 and (3)(8) = 24, instead of adding those parts together.

6 0
2 years ago
X + 4.2 = 7 what is x
ANEK [815]

In this question, you're solving for x.

Solve for x:

x + 4.2 = 7

You need to get x by itself, to do so, you would need to subtract 4.2 from both sides:

x = 2.8

Answer:

x = 2.8

6 0
3 years ago
For the given equation, find the values of a, b, and c, determine the direction in which the parabola opens, and determine the y
Zolol [24]

Answer:

Step-by-step explanation:

In the quadratic

3x^2+2x-8 the sign on the leading coefficient is positive, so the parabola opens upwards. The y-intercept exists where the x's are equal to 0, so the y-intercept is (0, -8). Match that to the table that has those characteristics in it.

5 0
3 years ago
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