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sineoko [7]
3 years ago
10

Use properties to find the sum or product. 93+(68+7)

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
6 0
93+(68+7)=93+68+7\\use\ commutative\ property: a+b=b+a\\\\=93+7+68\\use\ associative\ property:a+(b+c)=(a+b)+c\\\\=(93+7)+68=100+68=\huge\boxed{168}
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A pair of boots are $95.00 and are on sale for 30% off. What is the sale price of the boots?
polet [3.4K]

Answer:

$66.50, and you saved $28.50

3 0
2 years ago
UPPER AND LOWER BOUNDS - PLEASE HELP!
Marianna [84]
Qn. 1
Lower bound for Zoe's weight = 62 - (1/2) = 62 - 0.5 = 61.5 kg

Qn. 2
Upper bound for length AB = 8.3+ (0.1/2) = 8.3+0.05 = 8.35 cm

Qn. 3
Upper bound for Anu's wight = 83+(0.5/2) = 83+0.25 = 83.25 kg

Qn. 4
Lower bound for length CD = 27-(0.5/2) = 27-0.25 = 26.75 cm

Qn. 5
Upper bound for sides of the hexagon = 3.6+(0.1/2) = 3.6+0.05 = 3.65 cm
Upper bound for the perimeter = upper bound for the sides*6 = 3.65*6 = 21.9 cm

Qn. 6
Perimeter = 4*length => side = Perimeter/4 = 24/4 = 6
Bound = 0.5/4 = 0.125
Lower bound of the length = 6-0.125 = 5.875 cm

Qn. 7
For the area,
Upper bound = 80+(10/2) 80+5 = 85 cm^2
For the length
Upper bound = 12+(1/2) = 12+0.5 = 12.5

Then, upper bound for the width = Upper bound for the area/upper bound for the length = 85/12.5 = 6.8 cm

Qn. 8
Lower bound for the area = 230-(1/2) = 230-0.5 = 229.5 cm^2
Lower bound for the sides of the square = Sqrt(Lower bound of the area) = Sqrt (229.5) = 15.15
Then,
Lower bound of perimeter = 4(Length) = 4*15.15 = 60.6 cm
8 0
3 years ago
5000 rounded to the nearest 10 thousand
Serga [27]
It only thousand you can't rounded to ten thousand
6 0
3 years ago
Plz answer!! thanks
jeka94

Answer:

x = 10

y = 40

Step-by-step explanation:

60° + (2x + 7y)° = 180° because these two angles are supplementary

So 2x + y would be equal to 60°

60° + (2x + 7y)° = 180° subtract 60 from both sides

2x + 7y = 120 and

2x + y = 60 multiply second equation by -1 and it will be -2x -y = -60 now add it to first equation

2x + 7y -2x - y = 120 - 60 -2x will eliminate 2x

6y = 60 divide both sides by 6

x = 10

if 2x + y = 60 the we need to replace x with the value we found

2×10 + y = 60

y = 40

4 0
2 years ago
. Angela rolls a pair of 6-sided number cubes. What is the probability that their sum is 11, given that their sum is greater tha
Fed [463]
D.1/36 because it has 6 sides which can have an possible outcome of 36
7 0
2 years ago
Read 2 more answers
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