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4 years ago

What is 10 +10 -20 add 10 divide by 2 subtract 2 plus 7

Mathematics

2 answers:

dimaraw [331]4 years ago

7 0

10+10=20-20=0+10=10 divide 2=5-2=3+7=10

Nataly_w [17]4 years ago

7 0

10+10=20

20-20=0

0+10=10

10 divided by 2= 5

5-2= 3

3+7= 10

Therefore, 10 is our final answer.

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Which side lengths form a right triangle? <br> (Look in the picture for the answers)

KIM [24]

Pythagoras' Theorem only works with right angle triangles.

A makes a right angles triangle because:
√3² + 4² = 5

However B doesn't because:
√7² + 8² = 10.631 (which is not 9)

Nor does C because:
√3² + 9² = √90 (which is not √95)

So the answer is A

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4 years ago

6. Solve 2.6x + 2 > -12.5 and graph the solution on a number line.

lesya [120]

Answer:

x>−5.576923

Step-by-step explanation:

2.6x+2>−12.5

Step 1: Subtract 2 from both sides.

2.6x+2−2>−12.5−2

2.6x>−14.5

Step 2: Divide both sides by 2.6.

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2.6

−14.5

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x>−5.576923

6 0

3 years ago

50 points help (show ur work)<br> Answer all of them

salantis [7]

Answer:

5. $40

6. 500 students

7. 60 books

8. 63 pages

Step-by-step explanation:

<h3><u>Question 5</u></h3>

Given:

Aiden spent $18 on souvenirs.
$18 is 45% of the money he brought on the trip.

Let x be the money Aiden brought on the trip.

Create equivalent ratios with the given information and defined variable, and <u>solve for x</u>:

$\implies 18:45\%=x:100\%$

$\implies 18:0.45=x:1$

$\implies \dfrac{18}{0.45}=\dfrac{x}{1}$

$\implies 18=0.45x$

$\implies x=\dfrac{18}{0.45}$

$\implies 40$

Therefore, Aiden brought $40 on the trip.

<h3><u>Question 6</u></h3>

Given:

Angel received 300 votes.
300 votes was 60% of all the votes.

Let x be the number of students who voted in the election.

Create equivalent ratios with the given information and defined variable, and <u>solve for x</u>:

$\implies 300:60\%=x:100\%$

$\implies 300:0.6=x:1$

$\implies \dfrac{300}{0.6}=\dfrac{x}{1}$

$\implies 300=0.6x$

$\implies x=\dfrac{300}{0.6}$

$\implies x = 500$

Therefore, there were 500 students who voted in the election.

<h3><u>Question 7</u></h3>

Given:

The students sold 80% of the books.
The total number of books they sold is 48.

Let x be the number of books in the sale.

Create equivalent ratios with the given information and defined variable, and <u>solve for x</u>:

$\implies 80\%:48=100\%:x$

$\implies 0.8:48=1:x$

$\implies \dfrac{0.8}{48}=\dfrac{1}{x}$

$\implies 0.8x=48$

$\implies x=\dfrac{48}{0.8}$

$\implies x=60$

Therefore, there were 60 books in the book sale.

<h3><u>Question 8</u></h3>

Given:

Aiyana read 147 pages of the book.
She completed 70% of the book.

If she has completed 70% of the book, then she still has 30% left to read, as 100% - 70% = 30%.

Let x be the number of pages Aiyana still has to read.

Create equivalent ratios with the given information and defined variable, and <u>solve for x</u>:

$\implies 70\%:147=30\%:x$

$\implies 0.7:147=0.3:x$

$\implies \dfrac{0.7}{147}=\dfrac{0.3}{x}$

$\implies 0.7x=44.1$

$\implies x=\dfrac{44.1}{0.7}$

$\implies x=63$

Therefore, Aiyana still has 63 pages left to read.

5 0

1 year ago

The function y = 0.99x represents the price y for x in-game power boosts. Which of the following is a reasonable domain for this

grin007 [14]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

After m minutes, an adult blinks a bout 10m+ 3 times. about how many times does an adult blink in 3 minutes. In two hours.

Yuki888 [10]

My answer is 16 cause if you add 10 and 3 and 3 the =16

8 0

3 years ago