MATHEMATICS MIDDLE SCHOOL

erica has only $5 and $10 in her wallet. If sge has 23 bills totaling $190, how many of each bill does she have?

Answers

Answer 1
Answer: 15 10$ bills and 8 5$ bills
Answer 2
Answer:

Answer:

$15

Step-by-step explanation:

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So I know that |-5| =5 but what does this -|-5| equal? and explain why

Answers

absolute value
means whatever is inside is positive, once we resolve the inside, work out

|-5|=5

now -5=?=-5

answer is -5 since - of + is negaitve
if you don't get it still think like this

|-5|=5
mulitp;ly by -1 everybody
-|-5|=-5

How would u solve -2/3x+7=3?

Answers

Well first you would have to full get rid of that 7.

So, -2/3x+7-7=3-7 Which then equals -2/3x= -4

Then you would want to get x by it's self.

So, -2/3x x (-3/2)= -4 x (-3/2) Which then equals x= 6

So your answer is, x= 6

Use the Pythagorean theorem to find the length of x on the triangle below.

Answers

x^2+16^2=20^2\nx^2=400-256\nx^2=144\nx=12

A large truck is going down a hill at 60 miles per hour. The driver needs to begin slowing down by shifting the gears. The speed goes down by 10 miles per hour each time he downshifts. Which expression shows his speed after three shifts?60 + (3 × 10)


60 – (-10 × 3)


60 – 10


60 + (-10 × 3)

Answers

It would be D. 69 + ( - 10 x 3 ). Because here are the keywords. He was going DOWN (negative) at a hill. And he now needs to SLOW DOWN (negative) by shifting the gears. Then he speeds DOWN (negative) 10 miles PER hour. And it says, how much speed after 3 shifts.

Which of the angels in the picture are vertical angles

Answers

Answer:

angles 2 and 3 are vertical angles

this is because they are opposing sides of the vertex while also congruent in size

Answer:

Angles 2 and 3

Step-by-step explanation:

What 7.3087 rounded to the nearest thouaanth

Answers

7.309
The thousandth is third number to the right of the decimal. We round 5+ up and 4- we round down. 
So we round the decimal into third place, the fourth place is the 7 so we round that up, and we get 7.309
If you round 7.3087 to the nearest thousandth it would be 7.3090.
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