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Anarel [89]
3 years ago
15

Define a variable. Then write and solve an equation for each situation.

Mathematics
2 answers:
Stolb23 [73]3 years ago
4 0
180 = 1.5d
180 / 1.5 = d
120 = d <== the Parker family drove 120 miles
=================
80% of the total questions = 16
0.80x = 16
x = 16 / 0.80
x = 20 <== there were 16 total questions on the quiz
artcher [175]3 years ago
4 0

16

Step-by-step explanation:

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2.
Sidana [21]
It’s C since it is open and x is less than 2. We can plug in any number on the number line to see if this makes sense.
5 0
2 years ago
Aubrey ran 13 1/6 miles and walked 9 5/6 miles. How much farther did Aubrey run than walk?
leonid [27]

Answer:

Aubrey ran 3 1/3 miles further than what she walked.

Step-by-step explanation:

This would be your basic subtraction problem. So, 13 1/6 - 9 5/6.

Since you can't subtract 5/6 from 1/6, let's borrow from 13. Now, instead of 13, it would be 12. Adding the whole (1) or 6/6 to the 1/6, you'll get 7/6. Now you can subtract. 7/6 - 5/6 = 2/6. Moving on, 12 - 9 = 3.

Therefore, your answer is 3 2/6. In simplified terms, it would be 3 1/3.

3 0
2 years ago
Help me on this one i am stuck
dybincka [34]
8/20as well,since the number of green beads and yellow beads is the same,so equal probability
8 0
2 years ago
Help me do examples for a function and a non function
bekas [8.4K]

Answer:

{(1,2) (3,4) (5,6)} and {(1,2) (1,4) (5,6)}

Step-by-step explanation:

you really want to think of a function as a vending machine. if you press B12 on a vending machine because thats where the chips are, only the chips should come out. in a function, the input value aka x (B12, what youre putting in) should only have one output value aka y, (the chips)

an example of a function would be {(1,2) (3,4) (5,6)}

an important thing to remember is that one output value can belong to multiple input values. there can be chips (output) in both B12 and C12 (inputs) BUT as i said before, there CANNOT be two outputs for one input. B12 cannot give you both chips and a drink.

using this, another example of a function would be {(1,2) (3,2) (5,2)}

an example of an non function would be {(1,2) (1,4) (5,6)} because x, the input value, has multiple output values which is not possible. the output of 1 can not be 2 and 4 at the same time which we can see in the (x,y) coordinates.

4 0
2 years ago
Evaluate the expression w2 - v + 1 for w = -2 and v = -8.
chubhunter [2.5K]
Plug in the value of -2 and -8

(-2)^2 - (-8) + 1

4 + 8 + 1 = 13
8 0
3 years ago
Read 2 more answers
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