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2 years ago

What is the Area of this triangle?

Mathematics

1 answer:

soldier1979 [14.2K]2 years ago

4 0

A. 236.7 feet squared

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PULATION.

Anni [7]

Answer:

62%

Step-by-step explanation:

$\frac{1240}{2000} \times 100 = 64\%$

7 0

2 years ago

A store is having a sale on trail mix and jelly beans. For 5 pounds of trail mix and 3 pounds of jelly beans, the total cost is

GaryK [48]

Answer:

Trail Mix costs $2.50 per pound, and Jelly Beans cost $1.50 per pound.

Step-by-step explanation:

Using x for trail mix and y for jelly beans, we have a system of equations being

$\left \{ {{5x+3y=17} \atop {2x+12y=23}} \right.$

We can solve this system using substitution

5x+3y=17

Divide by 5 to have a coefficient of 1 before x

$x+\frac{3}{5} y=\frac{17}{5}$

Subtract $\frac{3}{5} y$ from each side to single out one variable to one side

$x=\frac{17}{5} -\frac{3}{5} y$

Now, we can plug in our value for x into the given equation

$2(\frac{17}{5} -\frac{3}{5} y)+12y=23$

Open the parentheses

$\frac{34}{5} -1\frac{1}{5} y+12y=23$

Merge Y values

$6.8+10.8y=23$

Separate numerical values from variables

$10.8y=16.2$

Divide by 10.8 in order to have a coefficient of 1

$y=1.5$

Now that we have one of the values, we know that a pound of jelly beans costs $1.50. We can now plug in 1.5 for y into one of our equations to find x.

$5x+3(1.5)=17$

Open parentheses

$5x+4.5=17$

Single out the variable

$5x=12.5$

Divide by 5 to have a coefficient of 1 before x

$x=2.5$

$y=1.5$

3 0

2 years ago

Two numbers are the ratio of 2:7. their sum is 63. what is the larger number?

MariettaO [177]

Answer:

Step-by-step explanation:

step 1: Add the ratios 2:7 which is 2+7=9

step 2: divide the bigger ratio (7) by the total calculated in step 1 (9) and multiply by the total number given (63)....

step 3: we have 7/9×63 which is 49

therefore the bigger number is 49

8 0

2 years ago

Read 2 more answers

What is the volume of the triangular prism below?

worty [1.4K]

Answer:

4.5 ft

Step-by-step explanation:

18 inches = 1.5 ft

$\frac{1}{2} \times 1.5 \times 2 \times 3 = 4.5$

Volume of triangular prism = Base Area x Length

Hope this helps

8 0

3 years ago

PLEASE HELP !!!!!!!!Solve the system of equations using the linear combination method.

vfiekz [6]

Answer:

The solution would be (5, -2)

Step-by-step explanation:

To use this method, start by multiplying the second equation by -1. Then add the two equations together.

9x + 5y = 35

-2x - 5y = 0

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

7x = 35

x = 5

Now that we have the value of x, use it to solve either equation for y.

2x + 5y = 0

2(5) + 5y = 0

10 + 5y = 0

5y = -10

y = -2

6 0

3 years ago