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3 years ago

For the following system, use the second equation to make a substitution for x in the first equation.

Mathematics

2 answers:

Grace [21]3 years ago

6 0

Answer:

Step-by-step explanation:

slamgirl [31]3 years ago

3 0

A) x + 5y - 10 = 0
B) x = 2y - 8
Substituting B into A
A) 2y -8 + 5y - 10 = 0
A) 7y -18 = 0

7y - 18 = 0
answer is C

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Factor 70a + 50. Write your answer as a product with a whole number greater than 1

olga2289 [7]

Answer:

10(7a +5)

Step-by-step explanation:

The greatest common factor of the two terms is 10. Factoring that out gives ...

10(7a +5)

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2(35a +25)
5(14a +10)

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3 years ago

To shift the graph of an equation some number of units to the

malfutka [58]

Answer:

a right

Step-by-step explanation:

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3 years ago

Scores of two school basketball teams are recorded. The mean of Team A is 68. The mean of Team B is 67. What conclusion can you

Leto [7]

The conclusions that can be drawn are 3, two of a direct type and the other of an indirect type.

The direct ones are the values. Team A has an average of 68 points per game, which means that it has a good point average and, in the same way, team B, which has an average of 67, which is still a good point average per game.

The hint is the comparison of both teams, and that is that team A is one point above team B, which in terms of points per game makes them better.

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3 years ago

Scale copies.

Ksivusya [100]

Step-by-step explanation:

The value of x is 7......

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3 years ago

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Determine the value of $a$. [asy] pair w=(0,4); pair x=(0,0); pair y=(4,0); pair z=y+7/sqrt(2)*(1,1); dot(w); dot(x); dot(y); do

grandymaker [24]

Answer:

a=7

Step-by-step explanation:

The image is rendered and attached below.

Triangle WXY is an Isosceles right triangle, since WX=XY.

First, we determine the length of WY using Pythagoras Theorem.

$WY=\sqrt{4^2+4^2}\\WY=\sqrt{32}$

Since triangle WXY is Isosceles, $\angle XYW=45^\circ$

$\angle XYZ=\angle XYW+\angle WYZ\\135^\circ=45^\circ+\angle WYZ\\\angle WYZ=135^\circ-45^\circ=90^\circ$

Therefore:

Triangle WYZ is a right triangle with WZ as the hypothenuse.

Applying Pythagoras Theorem

$WZ^2=WY^2+YZ^2\\9^2=(\sqrt{32})^2+a^2\\a^2=81-32\\a^2=49\\a^2=7^2\\$Therefore: a=7$

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3 years ago