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QveST [7]
3 years ago
14

Use substitution to solve the systems of equations. y=x+1.75 4x-2y=4

Mathematics
2 answers:
jolli1 [7]3 years ago
6 0
Since y already equals something, x + 1.75, we can put its equivalent x + 1.75 in its place in the other equation. 
See the image for the rest of the solution steps.

Evgesh-ka [11]3 years ago
4 0

Answer:

(3.75,5.5)

Step-by-step explanation:

I know because i got a 100% on the i-ready quiz

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Determine the greatest common factor (GCF): 10, 20, 40<br> Cual es la respuesta correcta
aniked [119]

Answer:

GCF would be 10

Step-by-step explanation:

GCF, aka <em>the greatest common factor</em> is the biggest number that can be multiplied to get that number. for example, in this situation it would be 1- because 10 can be multiplied to get any of those numbers. 1 x 10 = 10 ; 2 x 10 =20 ; 4 x 10 = 40. hope this helped!!

4 0
3 years ago
In ΔHIJ, the measure of ∠J=90°, IJ = 47 feet, and HI = 68 feet. Find the measure of ∠H to the nearest degree.
TEA [102]

Answer:

44

Step-by-step explanation:

8 0
3 years ago
Which statement about the net is true?
Schach [20]
The net cannot be folded to form a pyramid because the faces that are not a base are not all triangles

If you fold this net up, you will get a triangular prism, NOT A PYRAMID.

A pyramid can have ANY polygon as its base, as long as all the other rest of the shapes are triangles.

Depending on the base, the number of triangles in a net of a pyramid must match the number of sides its particular base has.

For example, if you have a square pyramid turned into a net:
The base is a square (4 sides)
There should be 4 triangles on each side.

Because a pyramid is where all the triangles must meet up at a point.

Hope this helps!
3 0
3 years ago
A box contains different colored paper clips. The probability of drawing two red paper clips from the box without replacement is
ivann1987 [24]

Answer: 5/14 which is choice B

================================================

How I got this answer:

Define the following events

A = event of picking a red paper clip on the first selection

B = event of picking a red paper clip on the second drawing

Replacement is not made.

Now onto the probabilities for each

P(A) = 2/5 = 0.4 is given to us as this is simply the probability of picking red on the first try

P(A and B) = probability of both events A and B happeing simultaneously = 1/7

P(B|A) = probability event B occurs, given event A has occured

P(B|A) = probability of selecting red on second selection, given first selection is red (no replacement)

P(B|A) = P(A and B)/P(A)

P(B|A) = (1/7) / (2/5)

P(B|A) = (1/7) * (5/2)

P(B|A) = (1*5)/(7*2)

P(B|A) = 5/14

So if event A happens, then the chances of event B happening is 5/14

------------------

A more concrete example:

If we had 15 paperclips, and 6 of them were red, then

P(A) = (# of red)/(# total) = 6/15 = 2/5

P(B|A) = (# of red left)/(# total left) = (6-1)/(15-1) = 5/14

P(A and B) = P(A)*P(B|A) = (2/5)*(5/14) = 10/70 = 1/7

7 0
4 years ago
Read 2 more answers
Andre earns $12 per hour tutoring students after school. If Andre tutored for 24 hours this month, how much money did he earn th
Sophie [7]

Answer:

$288 dollars

Step-by-step explanation:

12 x 24 = 288

8 0
3 years ago
Read 2 more answers
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