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2 years ago

5

A student received a 76% on an exam. If there were 20 questions on the exam, which ratio would show the number of questions answ

ered correctly to the
total number of questions? A. 20:15 B. 5:20 C. 15:20 D. 20:5

2 answers:

Studentka2010 [4]2 years ago

7 0

The answer is A
I did it and I got it right

cestrela7 [59]2 years ago

4 0

Answer:

A

Step-by-step explanation:

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The floor of the commons room at King Middle School is in the shape of a square with side lengths of x^2 y^3 feet. New tile is g

umka2103 [35]

The useful hint here is the shape of the area which is square. By definition, a square is a two-dimensional figure that consist of two parallel sides have the same equal measure. The only given dimension of a square is its side. The area is equal to the square of the side. Since the side has a measure of x²y³,

A = s² = (x²y³)²
By the laws of exponents, for this problem, just simply distribute the outer exponent to each of the inner exponent.
A = x⁴y⁶

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3 years ago

EF is the median of trapezoid ABCD.

BARSIC [14]

Answer:

Part A) $x = 11$

B) length of BC = x + 12 = x + 12 = 11 + 12 =23

length of EF = 4x - 18 = 4(11) - 18 = 44 - 18 =26

length of AD = 3x - 18 = 3(11) - 4 = 33 - 4 =29

Step-by-step explanation:

Median of trapezium is $m=\frac{base1+base2}{2}$

In provided figure, base1 is x+12 and base2 is 3x-4

A) solve for value of x

calculate the median $m=\frac{base1+base2}{2}$

$4x-18=\frac{x+12+3x-4}{2}$

$4x-18=\frac{4x+8}{2}$

$4x-18=2x+4$

$2x-18=4$

$2x = 18 + 4$

$2x = 22$

$x = 11$

B) To find the length of BC, AD and EF , put the value of x in equation of lines

length of BC = x + 12 = x + 12 = 11 + 12 =23

length of EF = 4x - 18 = 4(11) - 18 = 44 - 18 =26

length of AD = 3x - 4 = 3(11) - 4 = 33 - 4 =29

5 0

3 years ago

Find the area of the unfolded box bottom.

Marysya12 [62]

The answer is 150 because
5*30
shortcut: 5*3=15
add the zero from the 50
150 is your answer..

6 0

3 years ago

What is the converse of the conditional statement?

Svetach [21]

Answer:

If x + 1 is odd, then x is even.

Step-by-step explanation:

The converse of the statement ...

if P, then Q.

is ...

if Q, then P.

Here, we have P="x is even" and Q="x+1 is odd". The converse statement is ...

if x+1 is odd, then x is even.

7 0

3 years ago

Write an iequality for -5(×+7)<-10 representing the solution for x

vovikov84 [41]

Answer:

X<-5

Step-by-step explanation:

1) open the brackets

2) take -35 to the other side with -10

where it turns to be -5X<-10+35

3) work out to find -5X<25

4) divide both sides by -5

to find X<-5

3 0

3 years ago