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3 years ago

Write a story problem that could be solved using this number sentence 12+28+ =53

Mathematics

2 answers:

vivado [14]3 years ago

5 0

Answer:

just make one up

Step-by-step explanation:

Lesechka [4]3 years ago

4 0

Danny is making cookies for his birthday party. He makes 12 cookies for his family and 28 cookies for his friends. How many cookies did Danny make in all?

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Can someone explain how to do this please?

Over [174]

I hope this helps. The length can’t be -3 because length can’t be negative

3 0

3 years ago

What is a classification for a triangle with angle measures of 20, 80, and 80 degrees,?

uranmaximum [27]

A triangle with angles of 20, 80, and 80 is an isosceles

6 0

4 years ago

Find the quanity 103% of 19

Basile [38]

Answer:

19.57

Step-by-step explanation:

100% of 19 is 19.

In order to find out what 1% of 19, move the decimal point two place to the left. 1% of 19= 0.19. To find 3% of 19, multiply .19 x 3. add 0.19 x 3 to 19, aka add 0.57 to 19 to get 19.57= 103% of 19

6 0

3 years ago

Read 2 more answers

The graph shows Susan’s distance from her office, in yards, as she runs errands, over time, in minutes.

musickatia [10]

The question is asking how much time Susan spent moving toward her office. On the graph, the y-axis represents the distance Susan is from her office, so the amount of time she is moving toward her office is the amount of time the graph is going down.

As you can see, the graph is going down from the 10 to 16 minute marks and the 22 to 26 minute marks. In total, this is 20 minutes in which the graph is going down.

Therefore, Susan spends 20 minutes moving toward her office.

6 0

4 years ago

a motorboat travels 371 kilometers in 7 hours going upstream. it travels 525 kilometers going downstream in the same amount of t

e-lub [12.9K]

Answer:

Speed of boat in still water = 64 km/hr

Speed of the current = 11 km/hr

Step-by-step explanation:

Let the speed of motorboat in still water = x km/hr

Let the speed of current = y km/hr

Motorboat travels 371 km in 7 hours going upstream.

Speed of motorboat while going upstream = speed of motorboat in still water - speed of current = (x-y)

=> $x-y = \frac{371}{7}$

=> $x-y = 53$ ------------------------------(1)

Motorboat travels 525 km in 7 hours going downstream.

Speed of motorboat while going downstream = speed of motorboat in still water + speed of current = (x+y)

=> $x+y = \frac{525}{7}$

=> $x+y = 75$ -----------------------------(2)

Solving for x and y from (1) and (2):

Adding (1) and (2):

2x = 128

=> x = 64

Substituting the value of x in (1), y = 11

6 0

3 years ago