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3 years ago

What is 9 + 10 ? I’m so confused. People keep telling me it’s 21 but it doesn’t seem right.

Mathematics

1 answer:

juin [17]3 years ago

8 0

Answer:

It's 21.

Step-by-step explanation:

The factors of 9 are 3 and 3. (You need to multiply 3x3 to get 9.) The factors of 10 are 5 and 2. But, if you multiply 3 by 5, which gives you 15, and multiply the other 3 by 2, which gives you 6, and then add 6 to 15, you get 21.

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A total of 399 tickets were sold for the school play. They were either adult tickets or student tickets. The number of students

weqwewe [10]

133 adult tickets were sold.

Step-by-step explanation:

Given,

Total tickets sold for school play = 399

Let,

x represent the number of children tickets sold.

y represent the number of adult tickets sold.

According to given statement;

x+y=399 Eqn 1

x = 2y Eqn 2

Putting value of x from Eqn 2 in Eqn 1

$2y+y=399\\3y=399$

Dividing both sides by 3

$\frac{3y}{3}=\frac{399}{3}\\y=133$

133 adult tickets were sold.

Keywords: linear equation, substitution method

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3 years ago

Find M<1 <br> A. 12.71 degrees<br> B. 15 degrees<br> C. 74 degrees<br> D. 106 degrees

Daniel [21]

It is 74 degrees because those two equations equal each other and you must cancel them out which equals x=15. plug 15 in to one of the equations and you have the answer.

5 0

3 years ago

Geomeyry question 19

denis23 [38]

Answer:

B, C, D, E

Step-by-step explanation:

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3 years ago

Ridley bought 3 3/4 yards of blue fabric,12 5/6 yards of red fabric,and 7 2/3 yards of purple fabric.if she paid $7.50 per yard,

Amanda [17]

The fabric cost $181.875

Step-by-step explanation:

Blue fabric bought = 3 3/4 yards , change to improper fraction (4*3)+3/4 = 15/4 yards

Red fabric= 12 5/6 yards = 77/6 yards

Purple fabric= 7 2/3 yards= 23/3 yards

Find total length of fabric bought, 15/4 +77/6 +23/3 =291/12 yards

Cost per yard= $7.50

Total cost will be, 291/12 * 7.50 =$ 181.875

Learn More

Cost : brainly.com/question/12878495

Keywords : cost, yard

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3 years ago

BRAINLIEST ASAP! PLEASE HELP ME :)

avanturin [10]

Answer:

1.) BC, AD, FI.

2.) Parallel.

Step-by-step explanation:

I can't get the other two I'm sorry mate like I really gotta go. Before my mum gets mad. Got chores. Good luck.

6 0

3 years ago