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3 years ago

2) Solve the system of equations using substitution. 2x -- 9y = 14 x = -6y +7

Mathematics

2 answers:

Nata [24]3 years ago

6 0

Answer:

x= 7, y=0 (7,0)

Step-by-step explanation:

Ivahew [28]3 years ago

6 0

X = 7 and y = 0 those are the answers

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If a soccer team won 7 of its 13 games, what was their ratio of wins to losses? Assume that there were no tie games.

Yuri [45]

Answer:

Answer : A. 7 to 6

A soccer team won 7 of its 13 game

Total games played by soccer team = 13

Games won by the team = 7

Games lost = total games played - games won

So games lost = 13 - 7 = 6

Now we find the ratio of win to losses

game won = 7

games lost = 6

So the ratio of won to losses is 7 to 6

Step-by-step explanation:

8 0

4 years ago

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A bag contains 9 marbles: 3 are green, 2 are red, and 4 are blue. Bob chooses a marble at random, and without putting it back, c

kvasek [131]

Answer: 1/18

Step-by-step explanation:

9 total marbles

2 red

so the first time he picks it would be a 2/9 chance of the marble being red

the second time there would be 8 total marbles and 2 red, so it would be a 2/8 or 1/4 chance.

the probability is found by doing 2/9*1/4 which equals 2/36 or 1/18.

8 0

3 years ago

15 is 60% of what number?

Mazyrski [523]

15 is 60% of 25. 15/25 is equal to .6 or 60%

8 0

2 years ago

Read 2 more answers

Which transformation will create a similar and a congruent triangle?

Reptile [31]

I believe it’s translation

7 0

3 years ago

11th grade geometry:

Aliun [14]

Answer:

The perimeter is 72 units and the area is 149 square units.

Step-by-step explanation:

$\triangle SBA$ has coordinates $S(15,-8),B(-2,21)$ and $A(0,0)$

Using the distance formula.........

Length of side $SB = \sqrt{(15+2)^2+(-8-21)^2}= \sqrt{17^2+(-29)^2}= \sqrt{1130}$

Length of side $BA= \sqrt{(-2)^2+(21)^2}= \sqrt{445}$

Length of side $AS =\sqrt{(15)^2+(-8)^2}=\sqrt{289}=17$

So, the perimeter of the triangle will be: $(SB+BA+AS)= \sqrt{1130}+ \sqrt{445}+17 =71.71... \approx 72$ units. (Rounded to the nearest unit)

The height of the triangle for the corresponding base $SB$ is 8.89 units.

Formula for the Area of triangle, $A= \frac{1}{2}(base\times height)$

So, the area of the $\triangle SBA$ will be: $\frac{1}{2}(\sqrt{1130}\times 8.89)= 149.42... \approx 149$ square units. (Rounded to the nearest unit)

3 0

4 years ago