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3 years ago

Can someone please help me on 7. Please

Mathematics

1 answer:

ankoles [38]3 years ago

6 0

Answer:

check the pdf its done there hope it helps :)

Step-by-step explanation:

Download pdf

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I have 18 ones,15 hundreds,15 tens,and 8 thousands.what number am i?

antoniya [11.8K]

15818 ?? This is making me get a headache

3 0

3 years ago

(07.05 HC)

lianna [129]

Answer:

Step-by-step explanation:

2×8=16

not 10 that is why c is correct

8 0

3 years ago

Please help me <br> can u explain how to do this

Ghella [55]

Answer:

x=41

Step-by-step explanation:

so since this is a right triangle you can use the Pythagorean Theorem to find the missing side. the two sides you know are 'a' and 'b' and the missing side is 'c'. the theorem says that:

a^2+b^2=c^2

so:

9^2 +40^2=c^2

solve for the exponents:

81 +1600=c^2

1681=c^2

and now, since 1681 is the missing side's length squared, we must find the square root of 1681, which is 41

hope this helps :)

7 0

3 years ago

Read 2 more answers

you take a group of 20 people going to the movies. kids’ tickets cost $4 each, and adults tickets $6 each. your total cost is $9

brilliants [131]

The number of kids in your group is 12.

Step-by-step explanation:

Given,

Number of people = 20

Cost of each kid ticket = $4

Cost of each adult ticket = $6

Total spent = $96

Let,

x be the number of kids ticket

y be the number of adult ticket

According to given statement;

x+y=20 Eqn 1

4x+6y=96 Eqn 2

Multiplying Eqn 1 by 4

$4(x+y=20)\\4x+4y=80\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(4x+6y)-(4x+4y)=96-80\\4x+6y-4x-4y=16\\2y=16$

Dividing both sides by 2

$\frac{2y}{2}=\frac{16}{2}\\y=8$

Putting y=8 in Eqn 1

$x+8=20\\x=20-8\\x=12$

The number of kids in your group is 12.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

5 0

3 years ago

If y varies inversely as x and y=-2 when x=25, find x when y=-40.

bazaltina [42]

X=25 and y=-2 so then y=-40 and x=? you will have to divide and and multiple and the answer will be x=500

6 0

3 years ago