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3 years ago

Solution to system of equations

1 answer:

6 0

Answer: In general, a solution of a system in two variables is an ordered pair that makes BOTH equations true. In other words, it is where the two graphs intersect, what they have in common. So if an ordered pair is a solution to one equation, but not the other, then it is NOT a solution to the system

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Help me through this

NikAS [45]

Monday= 13.45
Tuesday=9.5
wednesday/Friday= x/3

1st. you add Monday and Tuesday
2nd. you subtract the total 42.6 with added numbers of step one
3rd. finally you divided the total of step 2 by 3

finally you shall receive your answer.

6 0

3 years ago

Find the percent decrease. Round to the nearest percent. From 141 pounds to 135 pound

eimsori [14]

Answer:

between 135 and 141 that would be 140

4 0

3 years ago

Find the value of x please

Nataly_w [17]

Step-by-step explanation:

In isoceles triangle two sides are equal and two angles are equal.

Then,

∠R = ∠T = (5x-40)°

Then,

∠RTS + ∠STU = 180° (bcoz it lies on a straight line)

(5x-40) ° + 5x = 180°

10x = 220°

x = 22°

Therefore,

Option A is correct✔

8 0

3 years ago

Read 2 more answers

What is 2/3 ➗ 1/6? 2 3 4 6

MrMuchimi

Answer:

12/3=4

Step-by-step explanation:

it's 4, 2/3's stay the same. do the reciprocal on 1/6 which will be 6/1 and multiply

2/3(6/1)=12/3

and turn it to a mixed fractions and you would get 4

8 0

3 years ago

Solve sin^2x+cos2x-1/4=0

sweet-ann [11.9K]

$sin^{2}x + cos2x - \frac{1}{4} = 0$
$sin^{2}x + cos^{2}x - sin^{2}x = \frac{1}{4}$
$cos^{2}x = \frac{1}{4}$
$cos(x) = \pm \frac{1}{2}$

$x = \pm \frac{\pi}{3}$
General solutions: $x = \pi(n - \frac{1}{3})$ and $x = \pi(n + \frac{1}{3})$

8 0

3 years ago