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2 years ago

Find the area. Round to the nearest tenth.

Mathematics

1 answer:

motikmotik2 years ago

6 0

Answer:

40m^2

Step-by-step explanation:

Hope it helps!!:)

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Phil had 93 dollars, and his sister owed 10 dollars to her friend. How much should Phil give to his sister for each of them to h

slavikrds [6]

Answer:

$51.50

Step-by-step explanation:

Let the amount that Phil give to her sister be $x$

After Phil's sister pays her debt of 10, Phil and her sister should have EQUAL amount. So we can write the equation as:

$93-x=x-10$

Now solving this for x, we have:

$93-x=x-10\\93+10=x+x\\103=2x\\x=\frac{103}{2}=51.5$

Hence, Phil must give $51.50 to her sister.

5 0

3 years ago

Assume that y varies directly with

Galina-37 [17]

Answer:

x = 4/3

Step-by-step explanation:

Direct variation:

y = kx

We use the given x-y point to find k.

6 = k * 2/3

k = 6 * 3/2

k = 9

The equation is

y = 9x

For y = 12,

12 = 9x

x = 12/9

x = 4/3

5 0

2 years ago

About 250,000 people of a certain community live in the country. Of that number, 73,920 live in state A and state B. The number

Elodia [21]

Answer:

15 360 people in State A and 58 560 in State B

Step-by-step explanation:

We have two conditions:

(1) A + B = 73 920

(2) B = 3A + 12 480

Solve the system of equations. Substitute (2) into (1).

A + 3A + 12 480 = 73 920 Subtract 12 480 from each side

4A = 61 440

(3) A = 15 360 Substitute (3) into (2)

B = 3×15 360 + 12 480

= 46 080 + 12 480

= 58 560

There are 15 360 people in State A and 58 560 in State B.

Check:

(1) 15 360 + 58 560 = 73 920 (2) 58 560 = 3×15 360 + 12 480

73 920 = 73 920 58 560 = 46 080 + 12 480

58 560 = 58 560

6 0

2 years ago

Mr. Edwards hired a new employee to work in his bakeshop. In one hour, this employee burned 439439439 chocolate chip cookies, wh

pshichka [43]

Answer:

The new employee burn 1756 cookies in the course of the day.

Step-by-step explanation:

Given:

Mr. Edwards hired a new employee to work in his bakeshop. In one hour, this employee burned 439 chocolate chip cookies, which represented 25 percent of all the cookies the employee burned in that day.

Now, to find the cookies the new employee burn in the course of the day.

Let the cookies the new employee burn in the course of the day be $x.$

Number of chocolate chip cookies new employee burned = 439.

Percent this represented of all the cookies the employee burned in that day = 25%.

Now, to get the cookies the new employee burn in the course of the day we put an equation:

$25\%\ of\ x=439$

$\frac{25}{100} \times x=439$

$0.25\times x=439$

Dividing both sides by 0.25 we get:

$x=1756.$

Therefore, the new employee burn 1756 cookies in the course of the day.

3 0

2 years ago

PLZ help super really super fast

professor190 [17]

Answer:

The one in the top left corner and bottom middle

4 0

3 years ago