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topjm [15]
2 years ago
9

Pretend you got 86% of the questions on a state test correct. The test had 120 problems. How many problems did you get correct?

Mathematics
1 answer:
Vinil7 [7]2 years ago
8 0

Answer:103.2

Step-by-step explanation:

lets say that 120 is 100%

We next represent the value we seek with “x”

From step 1, it follows that 100%= 120

x%= 86%

This gives us a pair of simple equations:

100%=120

x%= 86

By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS (left hand side) of both equations have the same unit (%); we have

100%/x% = 120/86

Taking the inverse (or reciprocal) of both sides yields

x%/100% = 86/120

x= 71.67

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Zaid and Matias, two farmers, constructed a 792 foot fence around their very large garden. Zaid agreed to construct 20% more of
likoan [24]

Answer:

1.2x +x =792

2.2x =792

And we got finally:

x =\frac{792}{2.2}= 360 ft

And the amount for Zaid would be 1.2*360 ft= 432ft

So then Zaid construc 432 ft and Matias 360 ft

Step-by-step explanation:

For this case we know that Zaid and Matias, two farmers, constructed a 792 foot fence around their very large garden so then the total is represented by 792 ft

We also know that Zaid agreed to construct 20% more of the fence than Matias did. Let's assume that the amount that construct by Matias was x then the amount constructed by Zaid would be 1.2 x representing 20% more than Matias and we can set up the following equation:

1.2x +x =792

2.2x =792

And we got finally:

x =\frac{792}{2.2}= 360 ft

And the amount for Zaid would be 1.2*360 ft= 432ft

So then Zaid construc 432 ft and Matias 360 ft

7 0
3 years ago
A package of colored markers has 8 markers. The graph below shows the total numbers of markers in different numbers of packages.
photoshop1234 [79]

Answer:

m= 8p

Step-by-step explanation:

you multiple 8 by the number of packages because there are 8 markers in each package.

5 0
2 years ago
Read 2 more answers
How to prove a quadrilateral is a trapezoid but not a parrallelogram
elena55 [62]
To prove a quadrilateral<span> is a </span>parallelogram<span>, you must use one of these five ways. </span>Prove that<span> both pairs of opposite sides </span>are<span> parallel. </span>Prove that<span> both pairs of opposite sides </span>are<span> congruent.</span>Prove that<span> one pair of opposite sides is both congruent </span>and<span> parallel. </span>Prove that<span> the diagonals bisect each other.</span>
5 0
3 years ago
Round to the nearest tenth wa hit is the perimeter of the triangle
klio [65]

Answer:

D. 11.8 cm

Step-by-step explanation:

This triangle is a 30°-60°-90° triangle. There is a shortcut to find the lengths of the sides of a 30°-60°-90° triangle. The longest side is the hypotenuse. The longest side is double the shortest side or, the shortest side is half the longest side. Here the longest side is 5, so the short leg (shortest side) is 2.5

The other shortcut is that the longer leg is the

short leg×sqroot3

Here, the short leg is 2.5, so the long leg is 2.5×sqroot3

Perimeter is all the sides added together.

5 + 2.5+ 2.5×sqrt3

Do the times first.

5 + 2.5 + 4.3

= 11.8

6 0
1 year ago
What is the length if the height is 15 and the area is 45? *
Scrat [10]
I’m not sure but hi :)
6 0
2 years ago
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