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Mkey [24]
3 years ago
11

5x = 45

Mathematics
1 answer:
Trava [24]3 years ago
5 0
Division Property of Equality
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Which step is incorrect and what is the correct answer?
Anit [1.1K]

Answer:

Step 4, x = 3

Step-by-step explanation:

Step 4 was wrong, instead of 6x = 6, it should be 6x = 18. They shoudl've added 6 to both sides instead of subtracting 6 as ur trying to cancel out the 6 on the left side of the equation. So:

6x = 18

x = 3

7 0
2 years ago
What is the value of z in the equation 2z + 7 = -5?<br> a. -6<br> b. -1<br> c. 1<br> d. 6
Mekhanik [1.2K]
2z +7 = -5

2z = -5 -7

2z = -12

z= -12 /2

z= -6
4 0
3 years ago
Read 2 more answers
a box contains 4 yellow, 5 green and 3 blue balls. find the probability of obtaining a yellow ball in a single random draw.
Alex

Notice that the box has a total os 4 + 5 + 3 = 12 balls, since there are 4 that are yellow, then, the probability to randomly obtaining a yellow ball in a single draw is:

P(Yellow)=\frac{\text{ number of yellow balls}}{\text{total number of balls}}=\frac{4}{12}=0.33

therefore, the probability is 0.33 = 33%

7 0
1 year ago
Please help me find the missing side !
Vadim26 [7]

Answer:

x=14 and y=7

Step-by-step explanation:

This is a 30-60-90 triangle

So in terms of x it would be x-x\sqrt{3} -2x

If across the 60 is 7\sqrt{3} then y would be 7 which is across the 30 degrees

And x would be 14 because 2(7)=14

7 0
2 years ago
When a problem involves more than one unit for a characteristic (such as length), now can you tell which unit is more appropriat
Lostsunrise [7]

Answer:

For larger measurements, we use larger unit while for smaller measurement we use smaller unit.

Step-by-step explanation:

Normally, For larger distances we make use of larger units while for smaller distances we make use of smaller units.

For example, if we consider the distance travelled by a person in some days;

For 15000 units distance; We can represent this value as 15 Kilometers

For 800 units distance; Rather than using kilometers, it would be better to represent it in meters as 8 meters.

Also, For 70 units distance; Instead of kilometers or meters, 70 cm would be a better unit of representation.

Likewise, If we consider some 3 dimensional shapes holding some substances,

For 7000 units, best unit of weight representation would be 7 Kg

For 600 units, instead of in kg, best unit of weight representation would be 600 grams

For 50 units, best unit of weight representation would be 50 grams

So, looking at the examples given in both weight and distances, we will conclude that for larger measurements, we use larger unit while for smaller measurement we use smaller unit.

7 0
3 years ago
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