A doctor ran 55 hours the mom ran 52 hours what was the total

Answers

Answer 1

Answer: This is I suppose basic addition. Addition is a mathematical process of combining or joining something to something else. The word "total" indicates that the addition will be used. If the doctor ran for 55 hours and the mom for 52 hours, by using the addition it will be:
55
+ 52
______

107 hours in total.

107 hours converted in days will be 4 days and 4 hours. SInce 1 day contains 24 hours you now divide 107 hours by 24 hours to get its equivalent to days.

Answer 2

Answer: 107 because 55 + 52 = 107

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How much did the temperature change between 10 a. m. and 1 p.m. ?

Answers

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What is 1/4 - [-3/8] =

Answers

1/4 - [-3/8]

$(1)/(4)- (-(3)/(8))$

Negative times negative become positive

$(1)/(4) + (3)/(8)$

Now to add fractions we make the denominator same

4 and 8 are in the denominator

Least common denominator of 4 and 8 is 8

To make denominators same , we multiply the numerator and denominator of first fraction by 2.

$(1*2)/(4*2) + (3)/(8)$

$(2)/(8) + (3)/(8)$

The denominators are same so we combine the numerators

$(2+3)/(8)$

$(5)/(8)$

$(1)/(4) - ( - 3)/(8) = (5)/(8)$
5/8 cross multiply on the top then multiply the denominator you get 20/32 reduce that it's 5/8

Leticia spends $18.45 on a shirt. She spends a maximum of $3.00 more than Humberto spends. If h represents the amountHumberto spends, which symbol can be used to complete the inequality below to represent this situation?
18.45_3+h

Answers

Answer: C

Step-by-step explanation:

5x+15y=10 5x-10y=-40

Answers

{ 5x + 15 y = 10
5x - 10 y = -40 * (-1)

{ 5 x + 15 y = 10
-5 x + 10 y = 40
------------------------
25 y = 50

y = 50 / 25

y = 2

For x :

5 x + 15 y = 10

5 x + 15*(2) = 10

5x + 30 = 10

5x = 10 - 30

5x = -20

x = -20 / 5

x = - 4

hope this helps!.

5(2y-8)+15y=10= 25y=50= Y=2
x=2y-8 and Y= 2
X=2(2)-8=-4
(X,Y)= (-4,2)

Jackie is painting the roof of a dollhouse that is made up of three right triangles. One side of the roof is a scalene right triangle with a base of 8 inches and height of 6 inches. The other two sides are isosceles right triangles with bases of 10 inches each. Jackie has enough paint to cover 110 square inches of a roof. Does she have enough paint to cover the entire dollhouse roof?

Answers

Area of a triangle = $(1)/(2)bh$
Area of the scalene right angle = 1/2 x 8 x 6 = 4 x 6 = 24square inches
Area of the two isosceles triangles = 2(1/2 x 10 x 5) = 50 square inches
Total area of the roof = 24 + 50 = 74 square inches.
Therefore, Jackie has enough paint to cover the entire dollhouse.

What property describes the number sentence? 6+0=6

Answers

The commutative property of addition

The cumminative property of addition

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