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2 years ago

6

I need the answer fast!!!!!!!!

2 answers:

AlexFokin [52]2 years ago

4 0

Angle A should be equal to 47

umka2103 [35]2 years ago

3 0

Yessssssssssssdddddbbbbbbbb

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Theresa Morgan, a chemist, has a 30% hydrochloric acid solution and a 50% hydrochloric acid solution. How many liters of each sh

Bogdan [553]

Let x represent the number of liters of 50% acid Theresa puts into the mix. The the number of liters of 30% acid will be (420-x). The total amount of acid in the final solution will be ...
0.50x + 0.30(420-x) = 0.45(420)
0.20x + 126 = 189 . . . . . . . . . . . . . . . simplify
0.20x = 63 . . . . . . . . . . . . . . . . . . . . . subtract 126
x = 63/0.20 = 315 . . . . . . . . . . . . . . . liters of 50% solution
(420-x) = 420-315 = 105 . . . . . . . . . liters of 30% solution

Theresa should mix ...
105 liters of 30% solution
315 liters of 50% solution

7 0

3 years ago

The length of ZX is 2 units.<br><br><br>What is the perimeter of triangle XYZ?

Alika [10]

Answer:

5+3 square root of 5 units

7 0

2 years ago

Please help i need it now

Aneli [31]

Answer:

Square root of 36 and square root of 5.

Step-by-step explanation:

You have to put square root of 36 in one box and square root of 5 in the other box.

If this helps please mark as brainliest

3 0

2 years ago

Read 2 more answers

The number 16 has four fourth roots. In other words, there are four complex numbers that can be entered in the square in the equ

Tems11 [23]

Answer:

Step-by-step explanation:

Hello, we know that the z complex solutions of

$z^4=1$

are

1, i, -1, -i

so, the solutions of $z^4=16=2^4$ are

2, 2i, -2, -2i

Thank you

3 0

3 years ago

you plan to go snowboarding this weekend in Pennsylvania. the resort charges $15.75 per hour in addition to a $25 deposit to ren

Ulleksa [173]

Answer:

A. Equation is $c=25+15.75x$

B. Cost is $88

Step-by-step explanation:

A)

Suppose you rent for x hours and each hour costs $15.75

<u><em>How much would you need to pay?</em></u>

$15.75x$

Moreover, there is a $25 dollar (fixed) deposit for renting, so that gets added to your payment. All in all, you have to pay $25+15.75x$

This is the equation of renting a snowboard for x hours.

Equation is $c=25+15.75x$

Where x is the number of hours you rent the snowboard, and
c is the total cost

B)

If you are renting from 8.30 to 12.30, you are basically renting for 4 hours.

To know how much it will cost, you simply plug in 4 into x (in the equation):

$c=25+15.75x\\c=25+15.75(4)\\c=88$

Cost is $88

6 0

3 years ago