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3 years ago

Solve the inequality. Graph your solution. m+7 39

Mathematics

1 answer:

kogti [31]3 years ago

8 0

Answer:

Step-by-step explanation:

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4. What number is 5 more than 3? Show how you calculated your answer. 8 16

Airida [17]

Answer:

Step-by-step explanation:

To find one part of five, divide 21 by 3, which gives you 7. Now multiply that 7 by five (to give you the full five parts) and you get 35.

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3 years ago

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EleoNora [17]

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Step-by-step explanation:

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3 years ago

What is the solution to the equation below?<br><br><br><br> 0.5n = 6

Tcecarenko [31]

It's 12 because if you divide 6 by 0.5 you should get 12, so basically use the opposite operation.

Hope that helps!

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3 years ago

The scale for a scale drawing is 8 millimeters: 1 centimeter. Which is larger,the actual object or the scale drawing? PLEASE PLE

Daniel [21]

The centimeter is bigger

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3 years ago

The landing for the steps leading up to a county courthouse is shaped like a trapezoid. The area of the landing is 1500 square f

77julia77 [94]

Answer:

The length of the longer base is 80 feet.

Step-by-step explanation:

We are given that county courthouse is shaped like a trapezoid.

Let the height of the court house be h

Since we are given that The shorter base of the trapezoid is 15 feet longer than the height.

So, the shorter base = h+15

We are also given that The longer base is 5 feet longer than 3 times the height

So, longer Base = 3h+5

Now we are also given that the area of the landing is 1500 square feet.

Formula of area of trapezium :

= $\frac{1}{2} *(\text{Length of longer base}+\text{Length of shorter base})*height$

Substituting the values .

$1500=\frac{1}{2} *(h+15+3h+5)*h$

$1500=\frac{1}{2} *(4h+20)*h$

$1500*2=(4h+20)*h$

$3000=4h^2+20h$

Taking 4 common from the equation.

$750=h^2+5h$

$h^2+5h-750=0$

$h^2-25h+30h-750=0$

$h(h-25)+30(h-25)=0$

$(h-25)(h+30)=0$

⇒ h = 25, -30

Neglect the negative value .

So, height = 25 feet.

Length of Longer base = 3h+5 =3*25+5=80 feet

Hence , the length of the longer base is 80 feet.

6 0

3 years ago