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slega [8]
2 years ago
13

Joe is buying school supplies. He buys 2 pencils, 4 erasers, 10 pens, and a backpack for $20. Pencils and pens cost the same amo

unt. If ​p​ represents how much each pencil and pen costs, and ​e ​represents how much each eraser costs, the following expression shows how much Joe spent on school supplies:
2p + 4e + 10p + 20
a)​ ​Simplify Joe’s total spending expression.
​Simplified Expression: _______________________
Mathematics
1 answer:
Marianna [84]2 years ago
3 0

Answer:

12p+4e=20

Step-by-step explanation:

2p+4e+10p=20

12p+4e=20

Hope this helps plz hit the crown :D

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How can data or a graph be misleading?
Shtirlitz [24]
The correct answer should be
B) having outliers
Hope this helps!
6 0
2 years ago
Plllllllease helpppppp
Anna007 [38]

Answer:

Step-by-step explanation:

b/c we know that these triangles both have equal sides... that is given that <u>ab</u> and<u> be</u> are the same length.   and that <u>be </u>and <u>cd</u> are parallel , we know that they both are isosceles triangles and that the base angles are the same.  The side on <u> ad </u>and<u> ae</u>  have equal angles.

so we can make the equation

2a +56 = 180  (b/c we know that around a triangle it's 180°

2 a = 124

a = 62

so ∠ BAE = 62°

:)

3 0
3 years ago
An urn contain 2 white marbles, 3 green marbles, and 5 red marbles. A marble is drawn and then replaced. Then a second marble is
11111nata11111 [884]

<u>Answer:</u>

1/5

<u>Step-by-step explanation:</u>

To find this you would need to multiply the probability of pulling a white marble to the probability of pulling out a green marble.

1)First you would need the probability of pulling out a white marble. There are 10 marbles in total and out of those 2 are white. So the probability of pulling out a white marble would be 2/10. If you simplify that you would get 1/5 for the probability of pulling out a white marble.

2)Next, you would find the probability of pulling out a green marble. Using the same process that we used to find the probability of pulling out a white marble, we would find the answer to be 3/10. All that we did here was <em>green marbles/total marbles</em>. By filling that in we got 3/10 for the probability of pulling out a green marble.

3)Now all that is left is doing <em>probability of pulling a white marble × probability of pulling out a green marble</em>. This would be 1/5 × 3/10. After solving the answer would be 3/15 which we would simplify down to 1/5 as our final answer.

5 0
2 years ago
4.
matrenka [14]

Answer:

Step-by-step explanation:

D.works many year for a nation

8 0
2 years ago
If a student was randomly guessing while completing a 20 question multiple choice exam, what is the probability they would score
mario62 [17]

Answer:

you want 4 correct and 16 incorrect

there are 20 questions

each question has four answers, so

P(right answer) = 1/4

P(wrong answer) = 3/4

----

Since you want 4 correct of 20 we have a combination of 20C4

This is a binomial problem where p = 1/4, q = 3/4 and we get

(20 "choose" 4)*(probability correct)^(number correct)*(probability incorrect)^(number incorrect)

putting numbers in we get

(20c4)*(1/4)^4*(3/4)^16

This gives us

~ .189685

Step-by-step explanation:

7 0
3 years ago
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