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Leya [2.2K]
3 years ago
12

What is 18+(-8) + 11 simplified?

Mathematics
1 answer:
FromTheMoon [43]3 years ago
8 0
18 + (-8) + 11

Adding a negative number is the same as subtracting a positive number. So "18-8" is the same thing as "18+ -8".

18 - 8 + 11

10 + 11

21
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Coach De Leon purchases sports equipment. Basketballs cost $20.00 each, and soccer balls cost $18.00 each. He had a budget of $1
IRINA_888 [86]

Answer:

5 basketballs and 2 soccer balls

Step-by-step explanation:

5 times 20= 100

2 times 18= 36

equals 136

4 basketballs and 6 soccer balls- wrong-185

2 basketballs and 7 soccer balls-wrong-166

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4 0
3 years ago
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A gardener makes a new circular flower bed. The bed is teen feet in diameter. Calculate the circumference and the area of the ci
KATRIN_1 [288]

Answer:

I. Circumference of circular flower bed = 31.42 ft.

II. Area of circular flower bed = 78.55 ft²

Step-by-step explanation:

Given the following data;

Diameter = 10 ft

Radius = diameter/2

Radius = 10/2

Radius, r = 5 ft

I. To find the circumference of the circular flower bed;

Circumference of circle = 2πr

Substituting into the formula, we have

Circumference of circular flower bed = 2*3.142*5

Circumference of circular flower bed = 31.42 ft

II. To find the area;

Area of circle = πr²

Substituting into the formula, we have;

Area of circular flower bed = 3.142*5²

Area of circular flower bed = 3.142*25

Area of circular flower bed = 78.55 ft²

8 0
3 years ago
The maximum number of marks attainable at a mathematics competition is 60 suppose you obtained 40 marks your brother obtained 46
mixer [17]

Answer:

You = bronze

Your brother = silver

Your sister = gold

Step-by-step explanation:

Your marks: 40/60

Your brother's marks: 46/60

Your sister's marks: 49/60

You can simplify the fractions, but you don't have to:

40/60 = 2/3

46/60 = 23/30

49/60 = 49/60

Now, divide each of the numerators by the denominators (turn the fraction into a decimal).

2/3 = 0.6667

23/30 = 0.7666667

49/60 = 0.8166667

(Note that these are all approximations as the real answers go on forever)

Lastly, multiply them all by 100 to get the percent.

0.6667 x 100 = 66.67% - bronze

0.76667 x 100 = 76.667% - silver

0.816667 x 100 = 81.6667% - gold

3 0
2 years ago
THE ANSWER IS A FRACTION!
Lorico [155]

Answer:

1 2/3

Step-by-step explanation:

Perimeter is the outside of the shape all you have to do is add up the outside border of the shape.

1. 1/6+1/6=2/6

2. 2/3+2/3=4/3

3. 4/3 + 2/6= 1 2/3

Plz name me brainliest Thank you

5 0
3 years ago
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the ratio income to expenditure is 6:5 find the savings if the expenditure is 20,000 dollars. asking for savings not income​
Levart [38]

Answer:

$4000

Step-by-step explanation:

Expenditure= 6*20000/5

=24000

Saving= 24000-20000

=$4000

8 0
3 years ago
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