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3 years ago

= [70 + (-30)] + [2 + (-9)] + [0.3 + (-0.10]

Mathematics

2 answers:

irina [24]3 years ago

7 0

Answer:

33.2

Step-by-step explanation:

70−30+2−9+0.3−0.1

=40+2−9+0.3−0.1

=40+−7+0.3−0.1

=33+0.3−0.1

=33+0.2

=33.2

77julia77 [94]3 years ago

3 0

Answer:

33.2

Step-by-step explanation

If we start from the left and work our way right:

70+(-30) is the same as 70-30 which would give 40

2+(-9) is the same as 2-9 which would give -7

0.3(-0.1) is the same as 0.3-0.1 which would give 0.2

now if you put them together

40-7+.2 gives 33.2

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What value of x makes this inequality true? x - 16 < 43

Jlenok [28]

Answer:

read below

Step-by-step explanation:

x - 16 < 43

there are many values that can make it true

pretty much any number that can have 16 subtracted from it and be less than 43 will work.

or any number less than or equal to 43.

for example:

34-16<43

↓

18 < 43

6 0

1 year ago

2) Given: lines a and b are parallel Prove: m<1 = m<8

monitta

Explanation:

* Demonstrate that the related angles are the same.

* Demonstrate that different interior angles are equivalent.

* Demonstrate the adjacent interior angles are supplementary.

* Demonstrate the adjacent external angles are not mutually exclusive.

* Show that the lines in a plane are perpendicular to the same axis.

<1 and <8 are the same because they are alternate exterior angles that means that they are

Opposite sides of the transversal.

And that they are on the exterior side of the parallel lines.

Now because of that they have the same measures no matter what so would

<2 and <7

<3 and <6

<4 and <5

6 0

2 years ago

21/49 in lowest terms

noname [10]

21/49 in lowest terms

1) To make a fraction in lowest terms you have to divide by the greatest common factor.

The GCF of 21 and 49 is 7

2) Simplify Fraction

Divide the numerator and denominator by 7

21 ÷ 7 = 3
49 ÷ 7 = 7

21/49 in lowest terms is 3/7

5 0

3 years ago

Read 2 more answers

16 teams In a football league, each team plays each other twice , how many games are there in the football league in total ?

Brilliant_brown [7]

Answer:

120 games.

Step-by-step explanation:

We have been given that there are 16 teams in a football league. Each team plays each other twice. We are asked to find total number of games are there in the football league.

We will use formula $\frac{n(n-1)}{2}$ to solve our given problem.

Each team will play matches with one team less as it will not play match with itself.

We will divide all number of matches by 2 to avoid repetition.

$\frac{16(16-1)}{2}=\frac{16(15)}{2}=8*15=120$

Therefore, there are 120 games in the football league.

4 0

3 years ago

If you're creative, I need help. I am doing a math project where I need to define 20 words and include a picture and some facts

valentinak56 [21]

Answer:

Powerpoint

Step-by-step explanation:

I think that a powerpoint presentation would be best. With the first slide, put the picture and a title. With each slide, put more than one word and maybe an example. Make it colorful and maybe put some math puns in some of them.

Hope this helps.

6 0

3 years ago