3 years ago

Help please thank you

Mathematics

1 answer:

stira [4]3 years ago

6 0

To get the answer you must go back to the steps you did to get the answer, then change each step to see which is wrong.

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(4/x - z/y=0) <br> (10/x+z/y=0)

galina1969 [7]

Answer:

Some of the other answers are good examples of solving a system of three equations in three unknowns, which is what this problem is asking. Though the simplest way to solve this problem is actually to notice that, if we sum the three equations, we get:

X + Y = 10

X + Z = 20

+ Y + Z = 24

----------------

2X + 2Y + 2Z = 54

Factoring out the 2, we have 2(X + Y + Z) = 54, and dividing both sides by 2 reveals that X + Y + Z = 27.

Step-by-step explanation:

hopefully this helps

4 0

3 years ago

Safiya deposited money into a bank account that earned 6.5% simple interest each year. After 3 1/2 years, she had earned $36.40

RSB [31]

The answer is 160.00.

3 0

3 years ago

Read 2 more answers

PLEASE HELP ME!!!!!!!

Viefleur [7K]

Answer:

Step-by-step explanation:

x^2 + 2x = 6x+45

x^2 -4x -45 =0

x^2 - 5x +9x -45 =0

x(x-5) +9 (x-5)=0

(x-5)(x+9)=0

x = 5, -9

x = 5; measure of exterior angle = 5^2+2(5) = 35

x=-9; measure of exterior angle = (-9)^2 + 2(-9) = 63

5 0

2 years ago

3y=12x+6 in slope-intercept form

tresset_1 [31]

Answer:

$\displaystyle y = 4x + 2$

Step-by-step explanation:

$\displaystyle \frac{3y}{3} = \frac{4x + 12}{3} \\ \\ y = 4x + 2$

I am joyous to assist you anytime.

8 0

3 years ago

10 points?...1) must be quick to answer,2) must be reasonable answer,3) Show explanation for your answer

Ilia_Sergeevich [38]

Your answer is
${x}^{2} \div {2} {z}^{9}$
because the numbers raised to negative powers must be flipped over the divisor to become positive. Then, when multiplying 2 and z, you add their exponents.

3 0

3 years ago

Help please thank you​

Help please thank you