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Dmitriy789 [7]
3 years ago
10

Use the substitution method to solve the following system of equations 3x+5y=3 and x+2y=0

Mathematics
1 answer:
ziro4ka [17]3 years ago
3 0

Answer:

x=6

y= -3

Step-by-step explanation:

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If StartFraction pi Over 2 EndFraction less than t less than pi ​, which of the following is​ true?
oksian1 [2.3K]

Answer:

b. cosine t less than 0 and cotangent t greater than 0

Step-by-step explanation:

We have the following relation

\frac{\pi }{2} < t

if we apply the cosine function in the relation we get:

cos\frac{\pi }{2}

-1

the cosine of t is between 0 and -1 then (cosine t less than 0)

If we now apply cotangent function in the relation:

cotan\frac{\pi }{2}

0

This means that cotang is greater than 0, therefore the correct answer is b. cosine t less than 0 and cotangent t greater than 0

5 0
3 years ago
Lauren save $84 more than Fiona. 1 fifth Of Lauren's saving was the same as 3 eights of fiona's Saving. How much did Lauren and
muminat

Answer:

Lauren's saving=$180

Fiona's saving=$96

Step-by-step explanation:

Let the saving's of fiona be x

Now given that the savings of lauren is $84 more than fiona which means the saving's of lauren is x+84

Given 1 fifth Of Lauren's saving was the same as 3 eights of fiona's Saving

\frac{1}{5}(lauren's saving)=\frac{3}{8}(fiona's saving)

\frac{1}{5}(x+84)=\frac{3}{8}(x)

8x+672=15x

7x=672\\x=96

Therefore the saving's of fiona is $96 and the saving's of Lauren's is 96+84=$180

7 0
3 years ago
A ride on a roller coaster cost 4 tickets while the boat ride onlycost 3 tickets Michael went on the two rides a total of ten ti
laila [671]
One equation that represents this statement above me could be: <span>4r + 3 (10-r) = 37.

</span>How? R = Rollercoaster - B = Boat Rides

r + b = 10 

37 tickets were spent so..

4*r + 3*b = 37

We just multiplied the number of rides on roller coasters and the boats with the price of both.

Now we have to express boat rides from the first equation:

b = 10-r, and express that in the second equation, now we get:

4r + 3(10-r) = 37, which is the answer.


6 0
3 years ago
(3) GEOMETRY IMAGE BELOW. 20 POINTS!!
Levart [38]

Answer:

option D

Step-by-step explanation:

option D is the correct answer of this question.

the length of the mid segment was 42 option A

( previous question ) according to me and it is right so please recheck your previous answer as it was option A not D

<em><u>hope </u></em><em><u>this</u></em><em><u> will</u></em><em><u> be</u></em><em><u> helpful</u></em><em><u> to</u></em><em><u> you</u></em><em><u>.</u></em>

<em><u>and </u></em><em><u>mark </u></em><em><u>my</u></em><em><u> answer</u></em><em><u> as</u></em><em><u> brainlist</u></em><em><u> plzzzz</u></em><em><u>.</u></em>

5 0
3 years ago
Read 2 more answers
Please help!!!
Dominik [7]

Answer:

Dilate Circle A by a scale factor of 4.

Step-by-step explanation:

Figure 1 shows Circles A (red) and B (green) before any transformations.

Figure 2 shows Circle A dilated about its centre by a factor of 4.

It is now apparent that every radius in A' has a corresponding radius in B, so the circles are similar.

4 0
3 years ago
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