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Ierofanga [76]
3 years ago
7

Plzzzzz helpppppp with 24-28

Mathematics
1 answer:
shepuryov [24]3 years ago
5 0

Answer:

25

Step-by-step explanation:

90=42+30+x

solve for x

x=18

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Lloyd is arranging his science project, math project, and art project on his desk. The tree diagram below shows the sample space
Margarita [4]

The tree diagram is constructed and attached below in the image.

First we have to make a choice out of 3 subjects, so the probability of choosing art as the first subject is 1/3.

Once we have chosen art as the first subject, we have two choices. So the probability of choosing each option now is 1/2. Thus, the probability of choosing math, science is 1/2.

The probability of choosing the projects in order of art, math, science = 1/3 x 1/2 = 1/6

Therefore, the probability that the projects are in order of art, math, science is 1/6 (one over 6). So first option gives the correct answer.

6 0
3 years ago
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What is the equation of the line in y=mx+b format? BRAINLIST WILL BE REWARDED
harkovskaia [24]

Answer:

y = 2/5x - 1

Step-by-step explanation:

There are a couple of different ways to figure this out, but since you have a graph, the fastest way is to count the slope, or m in the formula, by counting the rise (units up) over run (units to the right), which is 2/5. Then, find the value of b by finding the y-intercept on the graph, or -1.

3 0
3 years ago
40 is what percent of 50
fredd [130]
40/50=0.8
0.8*100=80%
Hope this helps!
3 0
3 years ago
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A building blueprint has a scale of 2 inches equal to 25 feet. On the blueprint, the 10-story building has a height of 12 inches
galben [10]
You can do 12 divided by 2
The answer is 6
SO you can do 25 times 6
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3 0
4 years ago
Find the solution of y = 5x - 4 for x = -6.
forsale [732]

Answer:

D (-6, -34)

Step-by-step explanation:

y = 5x - 4

Let x = -6

y = 5(-6) - 4

  =-30 -4

  = -34

x = -6, y= -34

6 0
3 years ago
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