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3 years ago

Given the equation 4x+5y=20

Mathematics

1 answer:

tester [92]3 years ago

4 0

I hope this helps you

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SOLVE FOR X WILL GIVE BRAINLEST

Lesechka [4]

Answer:

The first one is -3

The second one is 2

Step-by-step explanation:

8 0

3 years ago

Change each fraction or mixed number to a percent. a. 2/5 b. 7/20 c. 1 11/16 d. 14 1/4

QveST [7]

Answer:

a. 20% b. 35% c. 1.6875 d. 14.25

8 0

3 years ago

Read 2 more answers

find the length of the line segment with end points (7,2) and (-4,2) explain how you arrived at your solution

Inga [223]

Answer:

<h2>11 units</h2>

Step-by-step explanation:

Method 1:

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

We have the points (7, 2) and (-4, 2). Substitute:

$d=\sqrt{(2-2)^2+(-4-7)^2}=\sqrt{0^2+(-11)^2}=\sqrt{11^2}=11$

Method 2:

Look at the picture. Mark points in the coordinate system.

Read the length of the segment.

6 0

3 years ago

two numbered 1 to 6 dice are thrown together and their scores are added. the probability that the sum will be 4 is?

natulia [17]

Answer:

$Pr = \frac{3}{36}$

Step-by-step explanation:

Given

2 number die

Required

P(Sum = 4)

The sample space of 2 die is:

$S = \{(1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6), (2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6)$

$(3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6), (4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4, 6)$

$(5, 1) (5, 2) (5, 3) (5, 4) (5, 5) (5, 6), (6, 1) (6, 2) (6, 3) (6, 4) (6, 5) (6, 6)$

$n(S)= 36$

The pairs that adds up to 4 are:

$Sum(4) = \{(1,3), (2,2),(3,1)\}$

$n(Sum) =3$

So, the probability is:

$Pr = \frac{n(Sum)}{n(S)}$

$Pr = \frac{3}{36}$

5 0

3 years ago

Which is equivalent to the expression 4( +5) +4x +8

Ann [662]

Answer: 13+16x

Step-by-step explanation:

Okay so I just learned how to do that haha, so if the answer is wrongdoing I'm a sorry.

I added the 8 and five, then multiplyed the 4 and the 4 then added the x on the end.

8 0

3 years ago