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4 years ago

Which choice is the solution to the inequality below? 2 x < 20

Mathematics

1 answer:

nasty-shy [4]4 years ago

4 0

just divide 20 by coefficient of x

x < 20/2

x < 10

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Rebecca answered 42 of 60 questions correctly on a test which method should he she used to find the percent of question she answ

MakcuM [25]

She answered 70% questions correctly

Further explanation:

Percetages are used to calculae the success or failure in tests or exams usually.

Given

$Total\ questions= 60\\The\ questions\ attempted\ correctly=42$

The percentage will be calculated as follows:

$Percentage\ of\ correctly\ answered\ questions=\frac{Correct\ questions}{Total\ questions}*100\\= \frac{42}{60}*100\\=70\%$

She answered 70% questions correctly

Keywords: Percentage, Success rate

Learn more about percentage at:

#LearnwithBrainly

3 0

3 years ago

Read 2 more answers

find three consecutive odd integers such that the sum of the last two is 15 less than 5 times the first

Viefleur [7K]

2n + 1 , 2n + 3 , 2n + 5

____________________________

( 2n + 5 ) + ( 2n + 3 ) = 5 × ( 2n + 1 ) - 15

4n + 8 = 10n + 5 - 15

4n + 8 = 10n - 10

Add both sides 10

4n + 8 + 10 = 10n - 10 + 10

4n + 18 = 10n

Subtract both sides 4n

4n - 4n + 18 = 10n - 4n

18 = 6n

Divide both sides by 6

18 ÷ 6 = 6n ÷ 6

n = 3

_________________________________

Thus that three numbers are :

2(3) + 1 , 2(3) + 3 , 2(3) + 5

6 + 1 , 6 + 3 , 6 + 5

7 , 9 , 11

And we're done ....

3 0

3 years ago

The length of a rectangle is 10 in. What is the perimeter of the rectangle if the width is 7 in. less than the length? a. 26 in.

exis [7]

Answer:

Option A $P=26\ in$

Step-by-step explanation:

we know that

The perimeter of the rectangle is equal to

$P=2(L+W)$

we have

$L=10\ in$

$W=L-7$ -----> equation A

substitute the value of L in the equation A

$W=10-7=3\ in$

Find the perimeter

$P=2(10+3)=26\ in$

6 0

3 years ago

What is the volume enclosed by the slanted prism in the diagram? A. 225 cm3 B. 270 cm3 C. 300 cm3 D. 540 cm3

Leokris [45]

Answer:

Step-by-step explanation:

The volume of a slanted prism is defined as the product between the area of its base and its height.

Remember that height is the distance from the top to the bottom, reaching that bottom with a perpendicular angle.

So, in this case, the height is 9 cm, and the area of the base is 25 square centimeter.

This means the volume is

$V=Bh=25cm^{2}(9cm)=225cm^{3}$

Therefore, the right answer is A.

4 0

4 years ago

The difference between a number x and 17 is 22

Klio2033 [76]

Answer:

X-17=22

X=22+17

X=39 this is the answer

5 0

3 years ago