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klasskru [66]
2 years ago
14

Heeeeeelllllllppppppp

Mathematics
1 answer:
EleoNora [17]2 years ago
8 0

Answer:

Step-by-step explanation:

-7k = 0

Divide both sides by (-7)

k = 0

17) c - 4 = -23

Add 4 to both sides

c - 4 + 4 = -23 + 4

           c = - 19

18) \dfrac{r}{-2}=-16\\\\\\Multiply \ both \ sides \ by \ (-2)\\\\\dfrac{r}{-2}*(-2) = (-16)*(-2)\\\\\\r = 32

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A box of cereal states that there are 78 calories in a three fourths ​cup serving. What is the unit rate for calories per​ cup?
ladessa [460]

Answer:

See below.

Step-by-step explanation:

Unit rate = 78 / 3/4

= 78 * 4/3

= 26*4    (because 78 / 3 = 26)

= 104 calories per cup

There are 2 * 104 = 208 calories in 2 cuos of cereal..

4 0
3 years ago
Read 2 more answers
Which set is closed under the operation multiplication?
oee [108]
I have another set of choices here:

A. {0.5, 1, 2} 


B. {1, 2, 4} 


C. {1, 2, 3, 4, 5} 


<span>D. {0} 
</span>
If you multiply two numbers from a closed set the answer is in the set. 
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<span>Try multiplying the largest numbers in sets B, C, and D by themselves. You will soon discover the closed set.</span>
3 0
3 years ago
I REALLY NEED HELP ON 40 and 41, 50 POINTS
photoshop1234 [79]
Question 40 is D because from looking at the graph, its is symmetrical and the mean is the average, which usually the middle of the graph, so is the median. The median and mean would be within the 2.1-3 category because its the middle of the graph.

Question 41 is B because every pound is 16 ounces. If you multiply 16 and 12.5, you'll get 200.
3 0
3 years ago
A 28 ft ladder is leaned against the side of a building and its base is 5 ft away from the building. How far up the building wil
Sonja [21]

Answer:

27.55ft

Step-by-step explanation:

28²-5²=x

784-25=759

square root of 759=27.55

5 0
3 years ago
Which ordered pair is the solution to the system of linear equations y= -7x+2 and. y=9x - 14
12345 [234]

The answer is (1,-5), If you put those two on a graph, that point is where they collide.

6 0
3 years ago
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