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3 years ago

Answer please GIVING BRAINLIEST

Mathematics

2 answers:

Kaylis [27]3 years ago

3 0

Answer:

see below

Step-by-step explanation:

defining variables:

since you are trying to find t shirt cost and jeans cost, your variables would be

the cost of the t shirt and the cost of jeans, denoted by any variable you want.

I'll use x and y since they are the most common variables (x = shirt y = jeans)

Equation

4 shirts + 5 jeans = 160 dollars

4x + 5y = 160 (the cost of 4 shirts + the cost of 5 jeans is $160)

the cost of 2 shirts + 6 jeans = $150

2x + 6y = 150

abruzzese [7]3 years ago

3 0

Answer:

Selena: 4t +5j = 160

Taylor: 2t + 6j = 150

t= t-shirts

j = jeans

Step-by-step explanation:

8t + 10j = 320

-8t -24j= -600

-14j = -280

j = $20 each pair of jeans

4t + 5(20) = 160

4t + 100 = 160

4t = 60

t = $15 each t-shirt

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Please help me look at the attached picture

Lady bird [3.3K]

Answer:

Q(-10) = 299

Step-by-step explanation:

$Q(x) = 3x^{2} - 1$ $Q(-10) = 3(-10)^{2} - 1$

$Q(-10) = 3(100) - 1$ (-10 to the second power is 100 (negative times a negative equals a positive)

$Q(-10) = 300 - 1$ 3 times 100 equal 300

$Q(-10) = 299$

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3 years ago

Are the ratios 14:18 and 7:9 equivalent

Pepsi [2]

Answer:

Yes

Step-by-step explanation:

14/18 equals 7/9

Dividing by two on the first ratio makes:

7/9 equals 7/9

4 0

3 years ago

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PLEASE HELP ME I WILL GIVE BRAINLIEST TO EVERY SINGLE ANSWER

zepelin [54]

Answer: I believe the answer you are looking for is 33 inches of rain.

Step-by-step explanation:

First you will divide 31 days by 14 days as 2 weeks is 14 days. Which will give you 2.2..... Now multiply your crazy decimal by 15 to get 33.214.... Now round that decimal to 33. There's your answer.

6 0

3 years ago

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I don't understand this I have spent many points on this same question so this time I will be giving brainliest for the first co

Marrrta [24]

Given:

$|3+4 i|+|3-4 i|+|-3+4 i|+|-3-4 i|$

Solution:

Complex formula:

$|a+b i|=\sqrt{(a+b i)(a-b i)}=\sqrt{a^{2}+b^{2}}$

Let us simplify one by one.

$|3+4 i|=\sqrt{3^{2}+4^{2}}$

$=\sqrt{25}$

|3 + 4i| = 5

$|3-4 i|=\sqrt{3^{2}+(-4)^{2}}$

$=\sqrt{25}$

|3 - 4i| = 5

$|-3+4 i|=\sqrt{(-3)^{2}+4^{2}}$

$=\sqrt{25}$

|-3 + 4i| = 5

$|-3-4 i|=\sqrt{(-3)^{2}+(-4)^{2}}$

$=\sqrt{25}$

|-3 - 4i| = 5

Substitute these in the given expression:

$|3+4 i|+|3-4 i|+|-3+4 i|+|-3-4 i|=5+5+5+5$

$=20$

The solution of the expression is 20.

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3 years ago

Which is bigger 40% of 120 or 1/4 of 200?

Dmitry [639]

40/100×120=4/1×12=48. 1/4×200=50. so 1/4 of 200 is greater than 40% of 120.

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3 years ago

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