MATHEMATICS MIDDLE SCHOOL

1. Find three consecutive integers such that the sum of the first and twice the thirdinteger is 93 more than the second integer

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

Let (x), (x+1), and (x+2) be the three consecutive integers.

Put the words into expressions

Sum of the 3rd and twice the 3rd: (x)+2(x+2)

93 more than the second integer: 93+(x+1)

Now you can set up the equation and solve:

(x)+2(x+2)=93+(x+1)

Distribute and combine like terms

x+2x+4=94+x

3x+4=94+x

2x=90

x=45

So the 3 consecutive integers are 45, 46, 47.

Plug back in to check.

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on a 15 hour trip, Rob drove 35% of the time and Mark drove the reminder of the time. how many hours did Mark dive?

Answers

Rob drove 5.25 hours so Mark drove 9.75 hours

15*35%= 5.25
15-9.25=9.75

Kelsey painted 1/4 of her bedroom in 3/7 of an hour at this rate how long would it take her to paint the entire room

Answers

It would take 1 hour 44 min to paint the entire room.

What is multiplication?

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

Here, given that,

Kelsey painted 1/4 of her bedroom in 3/7 of an hour

To paint the entire room time taken

=3/7 x 4

= 12/7

= 1 5/7 hr.

Hence, It would take 1 hour 44 min to paint the entire room.

To learn more on multiplication click:

brainly.com/question/5992872

#SPJ2

MULTIPLY3/7 x 4= 12/7= 1 5/7 hr.1 hr 44 min to paint the entire roomhope this helpd

Does the associative property always,sometimes or never hold for subtraction.

Answers

You can use the associative property with addition and multiplication operations, but not subtraction of division, only some times.

What is the LCD of 5/12 and -9/16 ?

Answers

The least common denominator of 5/12 and -9/16

The answer is 48.

Now, we have to change the numerators also to make this a equal fraction to the first ones we had.

5*4 = 20
12*4 = 48

20/48

-9*3 = -27
16*3 = 48

-27/48

List the multiples of 12 and 16

Multiples of 12: 12, 24, 36, 48, 60
Multiples of 16: 16, 32, 48, 64, 80

So, the LCD of 12 and 16 is 48.

Least Common Denominator is the same thing as Least Common Multiple.

Scientific notation of 0.0417

Answers

The answer is 4.17 x 10 to the 2(second) power. You move the decimal behind the first number besides zero. So 0.0417 turns to 4.17.

in a department store, a $40 dress is marked, "save 25%." what is the discount? what is the sale price of the dress?

Answers

25%= 1/4

1/4 of 40 is 10

40 - 10= 30

$30 is the sales price.

$10 was the discount.

so wat you do first is 40 ×.25 which is______ then you minus- what you get from 40

Other Questions

Which is an expression to find the speed in m/s? d = 40 meters, t = 10 seconds A. 40/10 B. 40x10 C. 10/40 D. 40+10

I need help on the 4 last ones ASAP!!

Gary buys a 3 1/2 pound bag of cat food every 3 weeks. Gary feeds his cat the same amount of food each day. Which expression can Gary use to determine the number of pounds of cat food his cat eats each year? (1 year = 52 weeks)A. 7/2 x 52/3 B. 7/2 x 3/52 C. 3 ( 1/2 x 3/52 D. 3 ( 1/2 x 52/3 )

HELP! please! ASAP! I'll give 10 points!