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3 years ago

PLZ HELP ASAP!!!!! FIRST PERSON TO ANSWER WILL GET BRAINLIEST!!!!!

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

3 0

Answer:

y+2x=8 y=1/2x+2 2y=4-x

Step-by-step explanation:

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Simplify: 3x2 - 27 Helppppp

oksian1 [2.3K]

3x^2- 27 … you divide the whole thing by 3 to get x^2- 9 and that’s the furthest you can simplify

6 0

2 years ago

Can you please help me I plead you

Levart [38]

Answer:

Question 2

x is approximately 15.038 or 15 days

Question 3

$3.41

Question 4

31.1

Step-by-step explanation:

Question 2

5.2 km/1 day =78.2 km/x days

Multiply both sides by x

5.2x=78.2

divide by 5.2

x is approximately 15.038

or 15 days

Question 3

350-(262.94+83.65)

$3.41

Question 4

22(1.3)+2.5

31.1 m

5 0

2 years ago

Jasmine buys the magic carpet on sale for $374. She saved $66 off the regular price. What percent was the price discounted?

Furkat [3]

Answer:

15%

Step-by-step explanation:

Let c represent the regular price of the carpet.

Then:

sale price = regular price less discount

$374 = c - $66

Adding $66 to both sides isolates (solves for) c:

$374 + $66 = c = $440. This is the regular price.

$66

---------- = 0.15 This is the fraction of the regular price by

$440 which the regular price is reduced.

Then the percentage of this discount was 0.15(100%) = 15%

8 0

2 years ago

How do you find the legs of a right triangle when only given the hypotenuse?

tangare [24]

Answer:

We know that a^2+b^2=c^2. The 45° angle lets us know that y=x (45+45+90=180), so the problem is y^2+x^2=4sqrt of 2

$4 \sqrt{2} = \sqrt{32 } \\ \sqrt{32} ^{2} = 32$

So you get y^2+x^2=32, and from there, since we know x and y are equal, you can just divide 32 by 2 then take the square root of that, so the answer should be 4 for both x and y

Step-by-step explanation:

let me know if I'm wrong lol

6 0

2 years ago

Help me please for brainlist

allochka39001 [22]

Answer:

b. 82m³

Step-by-step explanation:

$V = \frac{1}{3}(\frac{1}{2} bh_1)h_2\\b = 8.2m\\h_1 = 4m\\h_2 = 15m\\\\V = \frac{1}{3}(\frac{1}{2}(8.2)(4))(15)\\V = 82m^{3}\\$

3 0

2 years ago

Read 2 more answers