3 years ago

7(2x−a)−3(4x−a)−5(3x+2a)+a=0.

Mathematics

1 answer:

Luden [163]3 years ago

5 0

Answer:

Step-by-step explanation:

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Solve for Y........................

aivan3 [116]

11 squared is 121
20 squared is 400
121+400= 521
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4 years ago

Point V is located at -16. Points W and X are each 7 units away from Point V. Where are W and X located?

nasty-shy [4]

Answer:

Location of W is - 23, location of X is - 9.

Step-by-step explanation:

location of V = - 16

Points W and X are each 7 units away from Point V.

Let the W is at left of V and X is right of V.

location of W = -16 - 7 = - 23

location of X = - 16 + 7 = - 9

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3 years ago

A group consists of fivefive men and sevenseven women. FourFour people are selected to attend a conference.

exis [7]

Answer:

Step-by-step explanation:

4 people can be selected in ways=12 P4=12×11×10×9=11880

4 women can be selected in ways=7P4=7×6×5×4=840

$P=\frac{840}{11880} =\frac{7}{99}$

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3 years ago

Each Saturday, Tina mows lawns to earn extra money which she puts into a savings account. The graph shows the balance of Tina's

NARA [144]

I need to see the graph

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2 years ago

Tank 1 initially contains 50 gals of water with 10 oz of salt in it, while tank 2 initially contains 20 gals of water with 15 oz

Naddik [55]

$\dfrac{\mathrm dx_1}{\mathrm dt}=\dfrac{2\text{ oz}}{1\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}-\dfrac{x_1(t)\text{ oz}}{50\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}$
$\dfrac{\mathrm dx_2}{\mathrm dt}=\dfrac{x_1(t)\text{ oz}}{50\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}-\dfrac{x_2(t)\text{ oz}}{20\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}$

$\implies\begin{cases}\dfrac{\mathrm dx_1}{\mathrm dt}=10-\dfrac1{10}x_1\\\\\dfrac{\mathrm dx_2}{\mathrm dt}=\dfrac1{10}x_1-\dfrac14x_2\\\\x_1(0)=10\\\\x_2(0)=15\end{cases}$

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3 years ago