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Scrat [10]
3 years ago
7

Please answer the question in the photo

Mathematics
2 answers:
IceJOKER [234]3 years ago
8 0
(x+10)+30=90
x+40=90
x=50
cestrela7 [59]3 years ago
7 0
30 ( x + 10 = 55 ) hope this
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At Longbridge middle school, 240 students said that they are an only child, which is 48% of the schools student enrollment. how
Ivanshal [37]

240 students = 48% of total enrollment

48%  means 0.48
"of" means "times" .

240 students = 0.48 x total enrollment

Divide each side by  0.48 :

Total enrollment = 240 students / 0.48 = <em>500 students</em>
4 0
3 years ago
Find the surface area and round to the nearest hundredths place when necessary.
UNO [17]

Answer:

6 x 14 = 84

84 x 2(since there are two small rectangles) = 168

22 x 6 = 132

132 x 2 = 264

264 x 2(since there are two of the same shape) = 528

22 x 14 = 308

308  x 2(since there are two of the same shape) = 616

Now we add up all the areas:

168 + 528 + 616 = 1312 square cm is your answer.

8 0
3 years ago
What is converse inverse and contrapostive?
Rufina [12.5K]

<span>rhythm of the falling rain answered 6 year<span>Given an if-then statement "if p, then q", we can create three related statements: 


A conditional statement consists of two parts, a hypothesis in the “if” clause and a conclusion in the “then” clause. 

For instance, “If it rains, then they will cancel school.” 
“It rains, “is the hypothesis. 
“They will cancel school,” is the conclusion. 

To form the converse of the conditional statement, interchange the hypothesis and the conclusion. 

The converse of “If it rains, then they will cancel school.” is 
“If they cancel school, then it rains.” 

To form the inverse of the conditional statement, take the negation of both the hypothesis and the conclusion. 

The inverse of “If it rains, then they will cancel school” is “If it does not rain, then they do not cancel school.” 

To form the contrapositive of the conditional statement, interchange the hypothesis and the conclusion of the inverse statement. 

The contrapositive of “If it rains, then they will cancel school” is “If they do not cancel school, then it does not rain.” 

Summary: 
Statement If p, then q. 
Converse If q, then p. 
Inverse If not p, then not q. 
Contrapositive If not q, then not p. 

If the statement is true, then the contrapositive is also logically true. If the converse is true, then the inverse is also logically true. 

Example: 
Statement If a person is 18 years old, then he is a legal adult. 
Converse If a person is a legal adult, then he is 18 years old. 
Inverse If a person is not 18 years old, then he is not a legal adult. 
Contrapositive If a person is not a legal adult, then he is not 18 years old.</span></span>
7 0
3 years ago
Find the sum: (3x2 + 5x − 8) + (5x2 − 13x − 5)
musickatia [10]

Answer:

(3x^2+5x-8)+(5x^2-13x-5)=8x^2-8x-13

Step-by-step explanation:

The given polynomials are,

3x^2+5x-8,5x^2-13x-5

In polynomial addition and subtraction only like terms can be added or subtracted.

So,

=(3x^2+5x-8)+(5x^2-13x-5)

=3x^2+5x-8+5x^2-13x-5

=3x^2+5x^2+5x-13x-8-5

=8x^2-8x-13

7 0
3 years ago
Read 2 more answers
Jamal has a pair of shoes that have a total mass of 960 grams and four identical books that have a total mass of 2 kilograms. Wh
Andreyy89

Answer: One book has a greater mass.

Step-by-step explanation:

Jamal has a pair of shoes with a total mass of 960 grams. This means that each shoe has a mass of:

960 grams ÷ 2= 480 grams per shoe.

Jamal also has four identical books with a total mass of 2 kilograms. Note that 1000 grams make a kilograms. Therefore 2 kilograms will be (2 × 1000 grams) = 2000 grams.

Each book will have a mass of:

2000 ÷ 4 = 500 grams per book.

One shoe has a mass of 960 divided 2 = 480 grams . One book has a mass of 2000 divided 4 = 500 grams . So one book has a greater mass.

8 0
3 years ago
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