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vova2212 [387]
3 years ago
7

A student was assigned 40 math problems for homework. The student correctly answered 85% of the problems. How many homework prob

lems did the student correctly answer?​
Mathematics
1 answer:
drek231 [11]3 years ago
5 0
34 questions right
Turn 85% into a decimal so .85 then multiply by 40 to get 34
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Find the value of x in each case.​
iren2701 [21]

Answer:

Step-by-step explanation:

To find x

Â= 180⁰-8x (angle on a straight line)

B= 180- 9x (angle on a straight line)

:. G + Â + B = 180⁰ ( sum of angles in a triangle)

5x + 180⁰ - 8x + 180⁰ - 9x = 180⁰

5x -8x - 9x + 180⁰ +180⁰ = 180⁰

-12x + 360⁰ = 180⁰

360⁰ - 180⁰ = 12x

180⁰ = 12x ( divide both sides by 12)

x = 15⁰

3 0
2 years ago
The perimeter of a rectangle is 108 inches. the rectangle is 34 inches long. how wide is it?
mixer [17]

\frac{108 - 34 - 34}{2}
= 20 inches

In a rectangle, there are 2 similar length measurements & 2 similar width measurements
7 0
4 years ago
Please answer this question now
Semmy [17]

Answer:

x=33

Step-by-step explanation:

x-9=24 the tangent of the circle are equal in length

x=33

8 0
3 years ago
A real estate purveyor purchases a 60,000square foot warehouse and decides to turn it into a storage facility. The warehouse's w
Bess [88]

Answer:

Therefore the width of the warehouse is 245 feet.

Step-by-step explanation:

Rounding to the nearest foot:

  • If the digit of tenths place is between 1-4, then the unit digit remains same.
  • If the digit of tenths place is between 5-9, then the unit digit increases by 1.

Given that,

A real estate purchases a 60,000 square foot warehouse.

The width of  warehouse is exactly of its length.

Since the unit of  60,000 is square foot. So, it is area of the warehouse.

The area of a rectangular plot is = Length× width.

Since the width of  warehouse is exactly of its length.

Then the length of the ware house = the width of the warehouse

∴ Length× width =60,000

⇒width× width =60,000

⇒ width² =60,000

\Rightarrow width=\sqrt{60,000}

\Rightarrow width\approx 244.94

⇒ width =245 feet.( nearest to feet)

Therefore the width of the warehouse is 245 feet.

3 0
3 years ago
Read 2 more answers
A number increased by 5 and divided by 2 is equal to 75. What is the number?
USPshnik [31]

Answer:

145

Step-by-step explanation:

We will let x equal our unknown number. So:

(x + 5)/2 = 75

Now we can solve for x

We can first multiply both sides of the equation by 2. This will get rid of the fraction on the left side:

x + 5 = 75 * 2 ----->

x + 5 = 150

Next, subtract 5 from both sides:

x + 5 - 5 = 150 - 5 ----->

x = 145

7 0
3 years ago
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